ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2009 DEH-4250SD/XNES CRT4505 CD RECEIVER DEH-4250SD /XNES DEH-4250SD/XNES1 DEH-4290SD/XNID DEH-3200UB/XNUC This service manual should be used together with the following manual(s): Model No. Order No. Mech. Module Remarks CX-3269 CRT4488 S11STD-DOUT CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly For details, refer to "Important Check Points for Good Servicing". K-ZZZ NOV. 2009 Printed in Japan
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For details, refer to "Important Check Points for Good Servicing".
K-ZZZ NOV. 2009 Printed in Japan
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SAFETY INFORMATION
CAUTION
Where in a manufacturer’s service documentation, for example in circuit diagrams or listsof components, a symbol is used to indicate that a specific component shall be replaced onlyby the component specified in that documentation for safety reasons, the following symbol shallbe used:
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repaircomplex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do soand refer the repair to a qualified service technician.
CAUTION:USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
- Safety Precautions for those who Service this Unit. When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.
Caution: 1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
CAUTIONCLASS 1M INVISIBLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS
2. During repair or tests, do not view laser beam for 10 seconds or longer.
WARNING
This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm.Health & Safety Code Section 25249.6 - Proposition 65
WARNING!The AEL (accessible emission level )of the laser power output is less than CLASS 1 but the laser component is capable of emitting radiation exceeding the limit for CLASS 1.A specially instructed person should do servicing operation of the apparatus.
Laser diode characteristicsWave length : 785 nm to 814 nm
Maximum output : 1 190 µW(Emitting period : unlimited)
Additional Laser Caution
Transistors Q101 in PCB drive the laser diodes.When Q101 is shorted between their terminals, the laser diodes will radiate beam.If the top cover is removed with no disc loaded while such short-circuit is continued, the naked eyes may be exposed to the laser beam.
DEH-4250SD/XNES21 2 3 4
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[Important Check Points for Good Servicing]In this manual, procedures that must be performed during repairs are marked with the below symbol.Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
DEH-4250SD/XNES 35 6 7 8
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CONTENTS SAFETY INFORMATION..................................................................................................................................... 21. SERVICE PRECAUTIONS ............................................................................................................................... 5
1.1 SERVICE PRECAUTIONS......................................................................................................................... 51.2 NOTES ON SOLDERING .......................................................................................................................... 6
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 235.2 ERROR CODE LIST ................................................................................................................................ 245.3 CONNECTOR FUNCTION DESCRIPTION............................................................................................. 25
6. SERVICE MODE ............................................................................................................................................ 266.1 DISPLAY TEST MODE ............................................................................................................................ 266.2 CD TEST MODE...................................................................................................................................... 27
7. DISASSEMBLY............................................................................................................................................... 288. EACH SETTING AND ADJUSTMENT ........................................................................................................... 35
8.1 CD ADJUSTMENT................................................................................................................................... 358.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.................................................... 36
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 389.1 PACKING ................................................................................................................................................. 389.2 EXTERIOR(1) .......................................................................................................................................... 409.3 EXTERIOR(2) .......................................................................................................................................... 429.4 CD MECHANISM MODULE..................................................................................................................... 44
12. ELECTRICAL PARTS LIST .......................................................................................................................... 75
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1. SERVICE PRECAUTIONS1.1 SERVICE PRECAUTIONS
1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.2. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on mode may damage the ICs inside the unit.3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY".4. After replacing the pickup unit, be sure to check the grating.5. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic induction.6. On CD Core Unit, actual cable colors and silk print are different.
7. When a CD-DA (regular music CD) is played in the CD test mode, its sound quality will be temporarily deteriorated. The CD will then repeat normal, deteriorated, normal… playback. This is due to the difference in the playback modes between the normal operation mode and the CD test mode, and the interval of generating deteriorated mode and the time taken to return to the normal mode depend on the error of each clock. The time taken to turn to the deteriorated mode is at a minimum around 20 seconds while the time to return to the normal mode is maximum 40 seconds approximately. Make sure to check the sound quality in the normal operation mode.
Green Red White Black
8. area and a heat sink becomes hot areas. Be careful not to burn yourself.
DEH-4250SD/XNES 55 6 7 8
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1.2 NOTES ON SOLDERING
For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering.
Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.
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2. SPECIFICATIONS2.1 SPECIFICATIONS
Continuous power output .. 22 W × 4 (50 Hz to 15 000Hz, 5 % THD, 4 ohmload,both channels driven)
WAV signal format ................Linear PCM & MS ADPCM(Non-compressed)
FM tunerFrequency range................... 87.9 MHz to 107.9 MHzUsable sensitivity.................. 9 dBf (0.8 μV/75 ohm, mono,
S/N: 30 dB)
Backup current ...................... 5.0 mA or less
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2.2 DISC/CONTENT FORMAT
DEH-4200SD
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2.3 PANEL FACILITIES
Head unit111 7222333
444555 666
de c abbbfgh 9
8
i
traPtraP
1 SRC/ OFF a 6 / PAUSE
2 S.Rtrv b 1 to 6
3 (list) c 3 /
4MULTI-CONTROL(M.C.)
d 2 /
5 Disc loading slot e 1/iPod
6 (eject) f / DISP/SCRL .
7 USB port g CLK / DISP OFF
8AUX input jack (3.5mm stereo jack)
h BAND / ESC
9 Detach button i
SD memory card slot
You can see the SDmemory card slot ifyou remove thefront panel.
CAUTIONUse an optional Pioneer USB cable (CD-U51E) toconnect the USB audio player/USB memory tothe USB port. Since the USB audio player/USBmemory is projected forward from the unit, it isdangerous to connect directly.Do not use the unauthorized product.
Remote control
Part Operation
j VOLUMEPress to increase or decrease vo-lume.
k MUTEPress to mute. Press again to un-mute.
l / / /
Press to perform manual seektuning, fast forward, reverse andtrack search controls. Also usedfor controlling functions.
m AUDIO Press to select an audio function.
n DISP/SCRLPress to select different displays.Press and hold to scroll throughthe text information.
o Press to pause or resume.
p FUNCTION
Press to select functions.Press and hold to recall the initialsetting menu when the sourcesare off.
qLIST /ENTER
Press to display the list dependingon the source.While in the operating menu,press to control functions.
Only for ES, ES1, ID .
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Display indication
12
57 9 bc e f468 a
d3
Indicator State
1Main dis-play sec-tion
Tuner: band and frequencyBuilt-in CD, external storage de-vice (USB, SD) and iPod: elapsedplayback time and text informa-tion
2 (artist)
The disc (track) artist name is dis-played.Artist search refinement on theiPod browsing function is in use.
3 (disc)
The disc (album) name is dis-played.Album search refinement on theiPod browsing function is in use.
4 (song)
The track (song) name is dis-played.A playable audio file has been se-lected while operating the list.Song search refinement on theiPod browsing function is in use.
5An upper tier of folder or menuexists.
6 (list) The list function is operated.
7
A lower tier of folder or menu ex-ists.It flashes when a song/album re-lated to the song currently playingis selected from iPod.
8 LOC The local seek tuning is on.
9 (stereo)The selected frequency is beingbroadcasted in stereo.
a (folder re-peat)
Folder repeat is on.When repeat function is on, only
is displayed.
b (folder ran-dom)
Folder random is on.When random function is on, only
is displayed.
c(shuf-
fle)
Shuffle or shuffle all function ison while the iPod source is beingselected.
d (sound re-triever)
The sound retriever function ison.
e iPodCTRL(control mode) is set toiPod.
f(SD
memorycard)
Only for ES, ES1, IDSD/SDHC memory card is in-serted.
Fastening the front panelIf you do not plan to detach the front panel, the front panel can be fastened with supplied screw.
UCScrewBPZ20P060FTC
ES, ES1, IDService ScrewCXX2204
DEH-4250SD/XNES 115 6 7 8
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2.4 CONNECTION DIAGRAM
1. T
his
prod
uct
3. F
ront
out
put
5. F
use
(10
A)
2. R
ear
outp
ut o
rsu
bwoo
fer
outp
ut
4.W
ired
rem
ote
inpu
t H
ard-
wire
dre
mot
e co
ntro
lad
apto
r ca
n be
con
nect
ed
(sol
d se
para
tely
).
6. A
nten
na ja
ck
7.Ye
llow
Con
nect
to th
e co
nsta
nt 1
2 V
sup
ply
term
inal
.
8.R
edC
onne
ct to
term
inal
con
trol
led
by
igni
tion
switc
h (1
2 V
DC
).
9.B
lack
(ch
assi
s gr
ound
)C
onne
ct to
a c
lean
, pai
nt-f
ree
met
al lo
catio
n.
th
giR.61
tfeL.51
22.W
ith a
2 s
peak
er s
yste
m, d
o no
t con
nect
anyt
hing
to th
e sp
eake
r le
ads
that
are
not c
onne
cted
to s
peak
ers.
14. F
ront
spe
aker
21. R
ear
spea
ker
10. W
hite
12. G
ray
13. G
ray/
blac
k11
. W
hite
/bla
ck
17. G
reen
19.V
iole
t
18. G
reen
/bla
ck20
.Vio
let/b
lack
14. F
ront
spe
aker
21. R
ear
spea
ker
23.T
ore
ar o
utpu
t or
subw
oofe
r ou
tput
26.P
ower
am
p (s
old
sepa
rate
ly)
25.C
onne
ct w
ith R
CA
cab
les
(sol
d se
para
tely
)
24.T
o fr
ont o
utpu
t
26.P
ower
am
p (s
old
sepa
rate
ly)
29.P
erfo
rm th
ese
conn
ectio
nsw
hen
usin
g th
e op
tiona
lam
plifi
er.
28. S
yste
m r
emot
e co
ntro
l
27.B
lue/
whi
teC
onne
ct to
sys
tem
con
trol
term
inal
of t
hepo
wer
am
p or
aut
o-an
tenn
a re
lay
cont
rol
term
inal
(m
ax. 3
00 m
A 1
2 V
DC
).
rekaepstnorF.41
rekaepstnorF.41 30
. Rea
r sp
eake
ror
sub
woo
fer
30. R
ear
spea
ker
or s
ubw
oofe
r
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)
31.N
ote
Cha
nge
the
initi
al s
ettin
g of
this
uni
t. T
he s
ubw
oofe
r ou
tput
of t
his
unit
is m
onau
ral.
7.Ye
llow
Con
nect
to th
e co
nsta
nt 1
2 V
sup
ply
term
inal
.
8.R
edC
onne
ct to
term
inal
con
trol
led
by
igni
tion
switc
h (1
2 V
DC
).
9.B
lack
(ch
assi
s gr
ound
)C
onne
ct to
a c
lean
, pai
nt-f
ree
met
al lo
catio
n.
1. T
his
prod
uct
3. F
ront
out
put
5. F
use
(10
A)
2. R
ear
outp
ut o
rsu
bwoo
fer
outp
ut
4.W
ired
rem
ote
inpu
t H
ard-
wire
dre
mot
e co
ntro
lad
apto
r ca
n be
con
nect
ed(s
old
sepa
rate
ly).
6. A
nten
na ja
ck
32. S
ubw
oofe
r (4
)
33.W
hen
usin
g a
subw
oofe
r of
70
W (
2 ),
be
sure
to c
onne
ctw
ithV
iole
t and
Vio
let/b
lack
lead
s of
this
uni
t. D
o no
t con
nect
any
thin
g w
ith G
reen
and
Gre
en/b
lack
lead
s.
35.S
ubw
oofe
r(4
) 2
34. N
ot u
sed.
15.L
eft
16. R
ight
14. F
ront
spe
aker
10. W
hite
12. G
ray
13. G
ray/
blac
k11
. W
hite
/bla
ck
17. G
reen
19.V
iole
t
18. G
reen
/bla
ck20
.Vio
let/b
lack
14. F
ront
spe
aker
27.B
lue/
whi
teC
onne
ct to
sys
tem
con
trol
term
inal
of t
he p
ower
am
p or
au
to-a
nten
nare
lay
cont
rol
term
inal
(m
ax. 3
00 m
A 1
2 V
DC
).
32. S
ubw
oofe
r (4
17. G
reen
19.V
iole
t
18. G
reen
/bla
ck20
.Vio
let/b
lack
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Connect with RCA cables(sold separately)
Rear output orsubwoofer output
This product
Antenna jack
Fuse (10 A)
Blue/whiteConnect to system control terminal of thepower amp or aut o-antenna relay controlterminal (max. 300 mA 12 V DC).
YellowConnect to the constant 12 Vsupply terminal.
RedConnect to terminal controlled by ignition switch (12 V DC).
Black (chassis ground) Connect to a clean, paint-freemetal location.
System remote control
Left Right
Perform these connections when usingthe optional amplifier.
White/black
Violet/black
Violet
With a 2 speaker system, do not connect anything to the speaker leads that are not connected to speakers.
Front speaker
White
Gray/black
Gray
Green/black
Green
Rear speaker
Wired remote input Hard-wired remote control adaptor can be connected (sold separately).
Front output
Power amp(sold separately)
Power amp(sold separately)
Front speaker
Rear speaker
Front speaker
Rear speaker
Front speaker
Rear speaker
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Wh
en n
ot
con
nec
tin
g a
rea
r sp
eake
r le
ad t
o a
su
bw
oo
fer
Yello
wC
onne
ct to
the
cons
tant
12
V s
uppl
y te
rmin
al.
Red
Con
nect
to te
rmin
al c
ontr
olle
d by
ig
nitio
n sw
itch
(12
V D
C).
Bla
ck (
chas
sis
grou
nd)
Con
nect
to a
cle
an, p
aint
-fre
e m
etal
loca
tion.
Thi
s pr
oduc
t
Fro
nt o
utpu
t
Rig
htLe
ft
With
a 2
spe
aker
sys
tem
, do
not
conn
ect a
nyth
ing
to th
e sp
eake
r le
ads
that
are
not
con
nect
ed to
spe
aker
s.
Fro
nt s
peak
er
Rea
r sp
eake
r
Whi
teG
ray
Gra
y/bl
ack
Whi
te/b
lack
Gre
enV
iole
t
Gre
en/b
lack
Vio
let/b
lack
Rea
r ou
tput
or
subw
oofe
r ou
tput
Ant
enna
jack
Wire
dre
mot
e in
put
Har
d-w
ired
rem
ote
cont
rol
adap
tor
can
be c
onne
cted
(s
old
sepa
rate
ly).
Fus
e (1
0 A
)
Fro
nt s
peak
er
Rea
r sp
eake
r
Con
nect
with
RC
A c
able
s (s
old
sepa
rate
ly)
Per
form
thes
e co
nnec
tions
w
hen
usin
g th
e op
tiona
l am
plifi
er.
Sys
tem
rem
ote
cont
rol
Blu
e/w
hite
Con
nect
to s
yste
m c
ontr
ol te
rmin
al o
f the
pow
er
amp
or a
uto-
ante
nna
rela
y co
ntro
l ter
min
al (
max
. 30
0 m
A 1
2 V
DC
).
Pow
er a
mp
(sol
d se
para
tely
)
Fro
nt s
peak
er
Pow
er a
mp
(sol
d se
para
tely
)To
rear
out
put
or s
ubw
oofe
r ou
tput
To fr
ont o
utpu
t Fro
nt s
peak
er
Rea
r sp
eake
r or
sub
woo
fer
Rea
r sp
eake
r or
sub
woo
fer
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Wh
en u
sin
g a
su
bw
oo
fer
wit
ho
ut
usi
ng
th
e o
pti
on
al a
mp
lifie
r
Not
eC
hang
e th
e in
itial
set
ting
of th
is u
nit.
The
sub
woo
fer
outp
ut o
f thi
s un
it is
mon
aura
l.
Yello
wC
onne
ct to
the
cons
tant
12
V s
uppl
y te
rmin
al.
Red
Con
nect
to te
rmin
al c
ontr
olle
d by
igni
tion
switc
h (1
2 V
DC
).
Bla
ck (
chas
sis
grou
nd)
Con
nect
to a
cle
an, p
aint
-fre
e m
etal
loca
tion.
Thi
s pr
oduc
t
Fro
nt o
utpu
t
Rea
r ou
tput
or
subw
oofe
r ou
tput
Ant
enna
jack
Wire
dre
mot
e in
put
Har
d-w
ired
rem
ote
cont
rol
adap
tor
can
be c
onne
cted
(s
old
sepa
rate
ly).
Fus
e (1
0 A
)
Left
Rig
ht
Fro
nt s
peak
erF
ront
spe
aker
Whi
teG
ray
Gra
y/bl
ack
Whi
te/b
lack
Gre
enV
iole
t
Gre
en/b
lack
Vio
let/b
lack
Gre
enV
iole
t
Gre
en/b
lack
Vio
let/b
lack
Sub
woo
fer
(4
4(S
ubw
oofe
r)
)
Whe
n us
ing
a su
bwoo
fer
of 7
0 W
(2
), b
e su
re to
con
nect
w
ithV
iole
t and
Vio
let/b
lack
lead
s of
this
uni
t. D
o no
t con
nect
any
thin
g w
ith G
reen
and
Gre
en/b
lack
lead
s.
Sub
woo
fer
(4)
x 2
Not
use
d.
Blu
e/w
hite
Con
nect
to s
yste
m c
ontr
olte
rmin
al o
f the
pow
er a
mp
or
auto
-ant
enna
rela
y co
ntro
lte
rmin
al (
max
. 300
mA
12
V D
C).
DEH-4250SD/XNES161 2 3 4
C
D
F
A
B
E
5 6 7 8
3. BASIC ITEMS FOR SERVICE3.1 CHECK POINTS AFTER SERVICING
To keep the product quality after servicing, please confirm following check points.
demrifnocebotmetIserudecorP.oN1 Confirm whether the customer complain has
been solved.If the customer complain occurs with thespecific media, use it for the operation check.
The customer complain must not bereappeared.Display, audio and operations must benormal.
2 CD Play back a CD.(Track search)
No malfunction on display, audio andoperation.
3 FM/AM tuner Check FM/AM tuner action.(Seek, Preset)Switch band to check both FM and AM.
Display, audio and operations must benormal.
4 Check whether no disc is inside the product. The media used for the operating check mustbe ejected.
retfaecnaraeppastinotridrosehctarcsoNkcehcecnaraeppA5receiving it for service.
See the table below for the items to be checked regarding audio:
Item to be checked regarding audioDistortionNoiseVolume too lowVolume too highVolume fluctuatingSound interrupted
RemarksChecking the gratingChecking the grating (Two pieces)
Name Jig No. Remarks
- Grease List NameGreaseGrease
Grease No.GEM1024GEM1045
RemarksCD Mechanism ModuleCD Mechanism Module
Name Grease No. Remarks
Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:
Portions to be cleaned Cleaning tools
CD pickup lenses Cleaning liquid : GEM1004
Cleaning paper : GED-008
DEH-4250SD/XNES 195 6 7 8
C
D
F
A
B
E
D
_RX
_TX
MUTE
STBY
T
CE1
CE2
CK
DI
DO
TL
LG
L
RST
IC60COMPU
PEG640
YSTEM M
WM876IC18DAC
LRCIN
DIN
BCKIN
DEEMPH
MCLK
Q591
ONT
1 2 3 4
4. BLOCK DIAGRAM
JA401
JA661
ANTENNA
SL
FM/A
M TU
NER
UN
IT
VCC
FMANTAMANT
13
5CE2
6CE1
8CK
9DI
10DO
14
4 SYS8V
TUNER AMP UNITA
ROM_VDD13 VDD3.3
VDD_3.317
Lch TUNL23
SYS8V3 1
NJM2885DL1-33IC431
TUNER3V REG.
USB5V DD5V5 4
R5523N001BIC151
USB5V REG.
VOUT VIN1
EN3
FLG
DD5V BUP2 1
BD9781HFPIC161
DD5V REG.
SW VIN
7EN
VDD3.3
3292
KEYA
34MED
33MED
43MED
41MED
KEYD
63
95SL
10RESE
64TUNP
TUNP
65TUNP
66TUNP
67TUNP
36USBC
23USBF
24
80SDCT
SYNC
12S-80827CNNB-B8M
IC651RESET
VDD3.3
S651
R5S7262ZD144FPUIC501
CN701
MEDIA uCOM
114SD_CD
113CDRST
RESET
16
15
8
9
VDD
63SYS_TXD
61
59
58BRST
MEDIAMUTE
SYS_RXD
71
70DM
DP
WIRED REMOTE
2,3
1
KEYADKEYD
231 GND
VDD3.3 VDD51 5
S-1132B33-U5IC901
VDD3.3V REG.
VOUT VIN4
SW
SD_DATA0 - SD_DATA3, SD_CLK, SD_CMD
CN781
SW33V
SD_CD
4
9
DAT0 - DAT3, CLK, CMD
CN1203 CN1202
VDD
CD
VDD
CD
4
12
7
2
MED3.3V
Q781
Q783Q782
SD UNITD
SD3.3V REG.
CPICKUP UNIT(P10.5)(SERVICE)
CD CORE UNIT(S11STD-DOUT)
LD
MD
LD-
MD
HOLOGRAM UNIT
LD+
FOCUS ACT.TRACKING ACT.
FOP
TOP
VREF
FOM
TOM
VCCVCC
15
5
14
15
5
2
1
2
1
14
88
33
44
1212
RF AMP, CD DECODER, MP3&WMA DECODERDIGITAL SERVO/DATA•PROCESSOR
CPU, USB HOST CONTROLLER
PE5706AIC201
Q101
IC301BA5839FP
ACTUATOR/MOTOR DRIVER
CN101
TD,FD
AC,BD,E,F
1
2
VDD
TOP
FOP
REFO93
FOM
TOM
PD
REFO
V+3A
LD+
GND
SPINDLEMOTOR
LOADING/CARRIAGEMOTOR
21
9
SD,MD
40
39
22 4115 VO3+16 VO3-17 VO4+18 VO4-
11 VO1-14 VO2+
12 VO1+
13 VO2-SOMSOP
LCOMLCOP
CNT
MUTE
LOIN
S903 S901S905DSCSNS HOME8SNS
35
3738
LD
PD
CONT
CLCONT
HOME
8SNSDSCSNS
RESET
REFOUT
LOEJ
PUENCN701
2VD
1
Q102
54
V+3A VDD
CD DATA (CDSRQ,CDSTBY,SKIP,
29 RESET
SCL,SDA,DATA,BCLK,LRCK,WAIT)
9
8
VDD
CD DATA (CDSRQ,CDSTBY,SKIP,SCL,SDA,DATA,BCLK,LRCK,WAIT)
M
M
MED21
CWW1967IC571
FLASH ROM 16Mbit
12RESET
43RESET
S
138DACLRCK
137DACDATA
139
105
136DACCLK
DACDATA1
DACSCK
1
2
3
12
14
148CP_SDA
149CP_SCL
112CPRST
111CPPWR
MED3.3V
A B
:DEH-4250SD/XNES:DEH-4250SD/XNES1
A
:DEH-4290SD/XNID:DEH-3200UB/XNUCC
B
VDVD
85VDSENS
BUP
Q751
Q752
MECHA VD
19 VDC
DEH-4250SD/XNES201 2 3 4
C
D
F
A
B
E
3292
34
33
43
41
63
95
10
64
65
66
67
36
23
24
80
21
MED3.3V
19
5 6 7 8
17 DSENS
DSENS
CN801
SOURCE
SW3.3V
KYDT
DPDT
ROT1ROT0
3
8
11
16
19
4
6
10
1214
D+
D-15
13
VBUSUSB5V
AUXL
OEL+B
SYS8V BUP2 1
NJM2388F84IC911
SYS8V REG.
VOUT VIN
4CONTROL
BUP
PM9012AIC201E.VOL
25OUTFL
26
FL
RLOUTRL
36TUNL
35CDLS5B+L
27 SWLOUTPL
39AUXLS1Q+L
S4B-L
21
22CLK
STB
23DATA
PA2030AIC351AMP
9OUT1(+)
7 FL2OUT1(-)
12RL
11FLIN1
FL
5 RL1OUT2(+)
3 RL2OUT2(-)
25 BRE1H-SW/VDS-DET
IN2
22MUTE
4STBY
48MUTE
46SYSPW
KEYAD
16
18
40TELIN
MED_RX
MED_TX
MEDMUTE
MEDSTBY
KEYD
SL
ASENS
RESET
BSENS
TUNPCE1
TUNPCE2
TUNPCK
TUNPDI
TUNPDO
55VST
54VCK
53VDT
USBCTL
USBFLG
SDCTL
SYNC
JA301
JA981FL1
1
3
5
7
18
14
ACC113
TEL19
6FL
5SWLSWL
Q303
Q301
Q361
Q381
Q382
VDD5
BUP
BUP
Q363
RC
A OU
T
MED3.3V
DD5V1 6
S-1172B33-E6IC581
MED3.3V REG.
VOUT VIN3
ON/OFFMED1.2V
4 3
BH12PB3WHFVIC583
MED1.2V REG.
VOUT VIN1
STBY
MEDRST
IC601COMPUTER
PEG640A8
SYSTEM MICRO
BUP
Q831
Q832
BUP VDD5
Q901
Q902
45DALMON
50OELPW
VDD5V REG.
OEL+B
OEL+B
90 SOURCE
30KYDT
SSENS
29
VDD3.3
Q841
Q842
BUP
Q821
Q822
47SWVDD
49ILMPW
DPDT
1ROT1
2ROT0
ILM+B
SWVDD
ILM+B
51
NJM2872F05IC182
DAC5V REG.
SYS8V
WM8761GEDIC181DAC
9VOUTL
CDL1
LRCIN2
DIN3
BCKIN12
DEEMPH14
MCLK8
VDDVIN
3CONT
VOUT
Q591
341S2162IC591
iPod CP
13I2C_SDA/SPI_SOMI
12I2C_SCL/SPI_SIMO
4nRESET
5VCC
2MODE1/SPI_nSS
Q921
BSENS
ASENS
SOUR
CE
CO
NNE
CTOR
C
TELMUTEQ951
3
16
KEYBOARD UNITBCN1801
JA1801
19 AUXL
4SOURCE
SW3.3V
CN1802
4D+
3D-
2US5V
SW3.3V
6KYDT
10DPDT
ROT014
15D+
13D-
S1801
ILLUMI
13 KYDT12 DPDT
MCLKR-ILM
14
19
XREST 11
XCMD 20
DCLK 1
DOUT 2
ADKEY117
REM 10
ADKEY215
CN1921
10XI
7XCS
6XRES
5XCMD
4SCL
3SI_RX
KEY MATRIX
1 3GP1UXC14RK
IC1891
S1811ROTARY COMMANDER
ROT112 Phase_A
Phase_B 18 ADKEY0
ILM+B
IC1901COMPUTER
PEG642A8
MICRO
CONTROL SENSORREMOTE
FRO
NT
AUX
AUXLAUXR
AUXG
32
1
USB
OEL
MO
DULE
8
11
OEL+B
VBUS(US5V)
SW3.3V
12VAH
13
8VDD
VKH
VDCONT
20 20DSEN
DSENS
B.UP
FUSE10 A
1517
DEH-4250SD/XNES 215 6 7 8
C
D
F
A
B
E
1 2 3 4
FM/AM TUNER UNIT
FMRF
ANT adjRF adj
FM ANT
T51 CF52
RFG
ND
OS
CG
ND
DG
ND
AU
DIOG
ND
NC
VC
C
VD
D_3
.3
3.3V 2.5VIC4
2.5VIC2
NC
CE
2
RO
M_V
DD SL DI
CK
CE
1
NC
DO
NC
NC
NC
NC
7 6 13 5 10 9 8 11 14 18 19 20 21
1
3
2 12 15 22 16 4 17
IC13.3V
AM ANT FMRFATT
LPFOSC
IC3EEPROM 5.0V
IC5
ATT
MIXER, IF AMP
DET, FM MPX 23Lch AA
A
A
3.3V→2.5V
5V→3.3V
DEH-4250SD/XNES221 2 3 4
C
D
F
A
B
E
5 6 7 8
5. DIAGNOSIS5.1 OPERATIONAL FLOWCHART
VCC1 = 3.3 VPin 14
BSENSPin 16
ASENSPin 18
BSENS = L
Startscommunication
with Grillemicrocomputer.
SWVDD <- HPin 47
Source keysoperative
Source ON
SYSPW <- HPin 46
500 ms
500 ms
Completes power-on operation.(After that, proceed to each source operation)
In case of the above signal, the communicationwith Grille microcomputer may fail.If the time interval is not 500 msec, the oscillatormay be defective.
Power ON
ASENS = L
DSENSPin 17
DEH-4250SD/XNES 235 6 7 8
C
D
F
A
B
E
1 2 3 4
5.2 ERROR CODE LIST
8-digit display 6-digit display 4-digit display
ERROR-xx ERR-xx E-xx
(2) LIST OF CD ERROR CODES (Error Mode: 0xFD)
Code Classification Error code to be displayed Details and possible causes
10 Servo Carriage Home NG The CRG cannot move toward the inner track.The CRG cannot move from the inner track.--> Defective HOME SW; Failure in CRG movement.
7 Servo TOC reading NG TOC information cannot be read. --> The partial disk or TOC content is illegal.
11 Servo Focus Search NG Focusing not available--> Disc placed upside-down; Stains on the disc; excessive vibration.
17 Servo Setup NG AGC protection does not work. Focus can be easily lost.--> Scratches or stains on the disc; excessive vibration.
15 Servo Failure in RF data RF not read--> A CD-R disc that does not contain data loaded--> A CD-RW disc that does not contain data loaded
12 Servo Spindle Lock NGSubcode NGRF-amp NG
Spindle not locked. Subcode not readable.Proper RF AMP gain not obtained.--> Defective spindle; Scratches or stains on the disc; excessive vibration.--> A CD-R disc that does not contain data loaded, or in a rare case, disc placed upside-down.--> CD signal error.
30 Servo Search Time Out Failed to reach a target address--> CRG tracking error; Scratches on the disc; Stains on the disc
50 Mechanism Failure in ejectionLoad NG
Disc ejection not completedDisc loading not completed--> A foreign object inserted in the mechanism; Disc jammed.
51 Mechanism Failure in retriedturning for ejection
Disc could not be ejected even after disc turning had been retried.--> A foreign object inserted in the mechanism; Disc jammed.
NOTES• Indications of error codes are available only during disc operations, because CD operations are unavailable if a mechanical error is generated.• If the TOC cannot be read, this is not processed as an error, and operation continues accordingly.• If you design a new head unit, be sure to use one of the display formats indicated in “Display example of the main unit.”
ERROR CODES
(1) DISPLAY METHODIf “0xFD” error mode is displayed in CD MODE (CD MODE area for display), an error code will be displayed in the MIN (minute display) and SEC (second display) areas.
The same code is displayed in the MIN and SEC areas.The TNO area is blank (#0FFH), as it conventionally was.• Display example of the main unit Depending on the display capability of LCDs, the display format varies, as shown below. XX denotes an error number. Note: In a case of an OEM product, the error display format is subject to the specifications used by the equipment manufacturer.
If a CD memory device is inoperable, or operation of such media is stopped by an error, the error mode is established and a cause of the error is displayed by an error code. Indication of error codes is intended to reduce the number of calls from customers and facilitate failure analysis and repair work in servicing.
• The 2 high-order digits of an error code denote the main classification, shown below. 0x: Servo-related errors 1x: Servo-related errors 3x: Servo-related errors 5x: Mechanism-related errors
• How to restore from each error is shown below. 0x, 1x and 3x: ACC-OFF then ON, CD-OFF then ON, Disc ejection 5X: ACC-OFF then ON, Disc ejection, Disc reloading
DEH-4250SD/XNES241 2 3 4
C
D
F
A
B
E
5 6 7 8
5.3 CONNECTOR FUNCTION DESCRIPTION
R/SW, FOUTPUT
ANTENNA
1 FL+2 FR+3 FL-4 FR-5 RL+6 RR+7 RL-8 RR-
9 NC10 NC11 NC12 NC13 ACC14 B.REM15 B.UP16 GND
16 14 12 10 8 6 4 2
15 13 11 9 7 5 3 1
WIRED REMOTE CONTROL
DEH-4250SD/XNES 255 6 7 8
C
D
F
A
B
E
1 2 3 4
6. SERVICE MODE6.1 DISPLAY TEST MODE
The information such as the system version is checked and the lighting of every segment on the display is checked.
[Operation key]
[Test item]
Test mode is started
System Version information is displayed
S $ $ $ $ # # #
$ PEG number For PEG123A, "123A" is displayed# System microcomputer version For Ver.7.01, "701" is displayed
Unit number information is displayed
U % % % % % % %
% System unit number For CWW1234, "CWW1234" is displayed
Display Version information is displayed(Both of Sys. and Disp.) Ver. 2.01 or later
D $ $ $ $ # # #
$ PEG number For PEG123A, "123A" is displayed# Display microcomputer version For Ver.7.01, "701" is displayed
(Both of Sys. and Disp.) less than Ver. 2.01D I S P $ $ $ $ # # #
$ PEG number For PEG123A, "123A" is displayed# Display microcomputer version For Ver.7.01, "701" is displayed
Media microcomputer Version information is displayed
M V $ $ # #
$ Major version# Minor version
Manufacture_ID information is displayed
M I D $ $ $ $ $ $ $ $
$ Manufacture ID
Display is normally updated
Usual product operation is implemented to outward appearances.
Display update is stopped
The screen gets still when entering this item.
Every segment lights up
Every segment including icons lights up.
Every segment goes out
Every segment including icons goes out.
Only /UC model (excluding DEH-3200UB/XNUC)
Corresponding key Processing Remarks
CLK/DISP OFF + LIST Switching to next test display Also used as an entry key
DEH-4250SD/XNES261 2 3 4
C
D
F
A
B
E
5 6 7 8
6.2 CD TEST MODE
[Key]
Contents
Display
[BAND]
Power On(T.Offset is adjusted)TRK MIN SEC00 00 00
[2]
RF AMPGain switching
GG GG GG
*1
[3]
Focus CloseS curve check
TRK MIN SEC91 91 91
[6]
Focus Mode switching
0X 0X 0X
*2
[1]
Tracking ServoClose
00 00 00or 99 99 99
[<]
CRG +
[2]
Self-adjustingswitching
TRK MIN SEC?? ?? ??
*3*8
[>]
CRG -*8
[BAND]
Power Off
TRK MIN SEC
[BAND]
Power Off
TRK MIN SEC
[BAND]
Power Off
TRK MIN SEC
[BAND]
Power Off
TRK MIN SEC
[1]T.Close & AGC
Applicable servomechanism
TRK MIN SEC?tr ?min ?sec
[3]
RF AGC /RF AGC coefficient display
[<]
CRG +
8X 8X 8Xor 9X 9X 9X
[2]
T.Balance adjustment /T.BAL coefficient display
TRK MIN SEC?? ?? ??
[>]
CRG -
?? ?? ??
[1]
F,T,RF AGCF.Bias display switchingTRK MIN SEC
TRK MIN SEC
TRK MIN SEC
[3] [<]
CRG/TR Jump +
[2]
Tracking Open
[>]
CRG/TR Jump -
?tr ?min ?sec
TRK MIN SEC
TRK MIN SEC
00 00 00or 99 99 99
TRK MIN SEC?tr ?min ?sec
8X 8X 8Xor 9X 9X 9X
8X 8X 8Xor 9X 9X 9X
00 00 00or 99 99 99
TRK MIN SEC?tr ?min ?sec?? ?? ??
*7 F,T AGC / F.BiasRF AGC
8X 8X 8Xor 9X 9X 9X
[2]
Tracking Open
*6
*4 *4
Operation[Key] Test Mode
[BAND] Power On/Off[<] CRG + / TR Jump +
(Direction of the external surface)[>] CRG - / TR Jump -
(Direction of the internal surface)[1] T. CLS & AGC & Applicable servomechanism /
T.Balance adjustment / T. Open[3] F. Close,S. Curve / Rough Servo and RF AGC /
F,T,RF AGC[6] F. Mode switching / Tracking Close
After the [EJECT] key is pressed keys other than the [EJECT] key should not be pressed, until disc ejection is complete.When the key [2] or [3] is pressed during the Focus Search, the power supply should be immediately turned off (otherwise the lens sticks to Wall, causing the actuator to be damaged).100TR Jump, the mechanism shall be set to the Tracking Close mode when the key is released.When the power is turned on/off the gain of the RFAMP is reset to 0 dB. At the same time all the self-adjusting values shall return to the default setting.Do not do Tracking Servo Close before doing Focus Servo Close. (Because the overcurrent flows)
- Flow Chart[CD] or [SOURCE]
Source ON
TRK MIN
[3] + [DISP] -> Reset
Test Mode IN
NOTEWhen a CD-DA (regular music CD) is played in the CD test mode, its sound quality will be temporarily deteriorated. The CD will then repeat normal, deteriorated, normal… playback. This is due to the difference in the playback modes between the normal operation mode and the CD test mode, and the interval of generating deteriorated mode and the time taken to return to the normal mode depend on the error of each clock.The time taken to turn to the deteriorated mode is at a minimum around 20 seconds while the time to return to the normal mode is maximum 40 seconds approximately.Make sure to check the sound quality in the normal operation mode.
*1) TYP t + 6 dB t + 12 dB TRK MIN SEC TRK06MIN06SEC06 TRK12MIN12SEC12
*2) Focus Close t S. Curve t F EQ measurement setting TRK00MIN00SEC00
TRK01MIN01SEC01 TRK02MIN02SEC02 (TRK99MIN99SEC99)
*3) F.Offset Display t T.Offset Display t Switch to the order of the original display
*4) 100TR Jump
*7) TRK/MIN/SEC t F.AGC t T.AGC Gain t F.Bias t RF AGC
*8) CRG motor voltage = 2 [V]
*9) TYP (1X) t 2X t 1X TRK MIN SEC
TRK22MIN22SEC22 TRK11MIN11SEC11*10) OFF(TYP) t FORCUS t TRACKING TRK MIN SEC
TRK70MIN70SEC70 TRK71MIN71SEC71
DEH-4250SD/XNES 275 6 7 8
C
D
F
A
B
E
1 2 3 4
7. DISASSEMBLY
2
1
2
3
4
5
Fig.1
Fig.2
- Removing the CD Mechanism Module (Fig.1) CD Mechanism Module
- Removing the Tuner Amp Unit and SD Unit (Fig.2)
1. Remove the Case.
Remove the two screws.
Disconnect the connector.
Remove the screw.
Straighten the tabs at five locationsindicated and then remove the TunerAmp Unit.
Straighten the tabs at three locationsindicated and then remove the SD Unit(DEH-4250SD/XNES, DEH-4250SD/XNES1DEH-4290SD/XNID).
1
1
2
1
4
4
44
2
2
2
3
4
5 2
55
Disconnect the connector and then remove theCD Mechanism Module.
Tuner Amp UnitSD Unit
1 Release the two latches and then remove thePanel Assy.
Remove the four screws.
- Removing the Case (not shown)
Panel Assy
1
While the photograph shown is slightly different from this model in shape, the disassembly procedure is the same.
DEH-4250SD/XNES281 2 3 4
C
D
F
A
B
E
5 6 7 8
1. The seesaw button has ten hooks as shown in the figure below.
Front view
Oblique perspective figure2. Disconnect eight hools shown in the figure below and pull the seesaw button.
3. Pull the seesaw button forward.
Note: When you want to assemble the seesaw button in the grille by contraries, take care not to break the hook.
4.The seesaw button is disconnected from the grille.
- Removing the Grille Unit
DEH-4250SD/XNES 295 6 7 8
C
D
F
A
B
E
1 2 3 4
1. Hold the Upper and Lower Frames at the specified parts (circled with broken blue lines in the photo below).2. You can hold the tabs of the Lower Frame (circled with broken green lines in the photo below) if you do so only while lifting the Mechanism Unit from the table. Keeping the Mechanism Unit lifted by holding these tabs with your fingers may result in deformation.3. Be careful NOT to hold the front part of the Upper Frame or the CRG Mechanism and NOT to insert foreign objects into these mechanisms. Doing so may result in deformation.
Proper handling
Improper handling
How to Hold the Mechanism Unit
DEH-4250SD/XNES301 2 3 4
C
D
F
A
B
E
5 6 7 8
1. Remove the solder from the CRG-motor lead wire (Fig. 1).2. Push in the Disc Detection Arm while applying 4-V power to the CRG Motor (Fig. 2). (Apply 4-V power to the green lead wire. The white lead wire is for grounding.) The Mechanism Module is set to the clamped state, and the PU will move toward the outer track. Note: NEVER apply power to the CRG-motor lead wire without removing the solder from the wire. Doing so may result in damage to the ICs and the PU.3. Stop the motor when the PU reaches around the middle track. Note: Jumpiness will occur when the PU reaches the outermost track. Although jumpiness does not constitute a problem, it is recommended that it occur as least frequently as possible.
Fig. 1Note: Be aware that the colors of the lead wires do not match the indications on the Core Board Pattern (green wire to O and white wire to P).
Fig. 2
Disc Detection Arm
Mechanism Module: How to Set to the Quasi-Clamp State (Driven by the Motor)
DEH-4250SD/XNES 315 6 7 8
C
D
F
A
B
E
1 2 3 4
How to Remove the PU Unit
How to Move the PU toward the Outer Track
1. Set the unit to the quasi-clamp state, following the procedures described in “Mechanism Module: How to Set to the Quasi- Clamp State (Driven by the Motor).”2. Temporarily change the engagement position of the bias spring of the feed screw (Fig. 2b). Be careful not to cut yourself on the tip of the spring.3. Hold the PU unit by parts A in Fig. 1 then slide it toward the inner track.4. Remove the backend of the feed screw from the outer holder, by first sliding it, as shown in Fig. 3, then lifting it.5. Remove the PU unit, by lifting it. Lifting the PU unit will disengage the PU unit from the part B of the chassis.Note: When reassembling the PU unit, be sure to securely engage the PU unit with the part B of the chassis, as shown in Fig. 4. Also, be sure to change the engagement position of the bias spring of the feed screw to its original position (Fig. 2a). After reassembling, perform the PU adjustment, following the description in the service manual.
1. Set the unit to the quasi-clamp state, following the procedures described in “Mechanism Module: How to Set to the Quasi- Clamp State (Driven by the Motor).”2. Move the PU unit toward the outer track, by applying 1.5-V power to the CRG motor.Note: After moving the PU toward the outer track and taking the necessary measures, be sure to solder the lead wires.
Fig. 4
Fig. 3
Fig. 1
Fig. 2a Original engagement position
Fig. 2b Temporary engagement position
Slide toward the inner track.
One end of the spring is engaged beneath the resin flange and plate bend.
Outer holderBackend of the feed screw
Properly assembled state[Improper assembly]The chassis is not properly pinched by the PU case and PU rack.
A
B
DEH-4250SD/XNES321 2 3 4
C
D
F
A
B
E
5 6 7 8
How to Remove the PU Rack1. Remove the PU Unit, following the procedures described in “How to Remove the PU Unit.”2. Remove the PU Rack fixing screw (Fig. 1).3. Remove the PU Rack, by applying force in the direction of the arrow in Fig. 2.Notes: While handling the PU Unit, be careful NOT to touch the actuator block shown in Fig. 6 or bang the actuator block against your workbench. Handle the PU and PU Unit with care, according to the description in “How to Hold the PU.” When reattaching the PU Rack to the PU, first reassemble parts a and b shown in Fig. 3 into the PU case then attach the boss shown in Fig. 4 to the PU case. After reassembling the PU Rack, insert the feed screw from side c in Fig. 5 (insertion depth: Approx. 18 mm for the part indicated in the photo).
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
PU Rack
PU Rack fixing screw
Actuator block
18 mm
b
c
a
DEH-4250SD/XNES 335 6 7 8
C
D
F
A
B
E
1 2 3 4
How to Hold the PU1. Be sure to hold the PU at the positions shown in “Proper handling.” NEVER hold it as shown in “Improper handling.”
Do not touch the object lens and ACT.
Do not touch the VR.
Do not touch the Hologram.
Do not pull the FPC.
Proper handling Improper handling
DEH-4250SD/XNES341 2 3 4
C
D
F
A
B
E
5 6 7 8
8. EACH SETTING AND ADJUSTMENT8.1 CD ADJUSTMENT
1) Cautions on adjustments In this product the single voltage (3.3 V) is used for the regulator. The reference voltage is the REFO1 (1.65 V) instead of the GND.If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servo’s misoperation will apply excessive shock to the pickup. To avoid such problems:a. Do not mix up the REFO1 with the GND when connecting the (-) probe of measuring instruments. Especially on an oscilloscope, avoid connecting the (-) probe for CH1 to the GND. b. In many cases, measuring instruments have the same potential as that for the (-) probe. Be sure to set the measuring instruments to the floating state.c. If you have mistakenly connected the REFO1 to the GND, turn off the regulator or the power immediately.
Before mounting and removing filters or leads for adjustment, be sure to turn off the regulator.
For stable circuit operation, keep the mechanism operating for about one minute or more after the regulator is turned on.
In the test mode, any software protections will not work. Avoid applying any mechanical or electrical shock to the mechanism during adjustment.
The RFAGC and RFO signals with a wide frequency range are easy to oscillate. When observing the signals, insert a resistor of 1k ohms in series.
The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it.
2) Test modeThis mode is used to adjust the CD mechanism module. To enter the test mode.[3] + [DISP] -> Reset
To exit from the test mode.Turn off the ACC and back up.
Notes:a. During ejection, do not press any other keys than the EJECT key until the loaded disc is ejected.b. If you have pressed the (→) key or (←) key during focus search, turn off the power immediately to protect the actuator from damage caused by the lens stuck.c. For the TR jump modes except 100TR, the track jump operation will continue even if the key is released.d. For the CRG move and 100TR jump modes, the tracking loop will be closed at the same time when the key is released.e. When the power is turned off and on, the jump mode is reset to the single TR (91), the RF amp gain is set to 0 dB, and the auto-adjustment values are reset to the default settings.
When a CD-DA (regular music CD) is played in the CD test mode, its sound quality will be temporarily deteriorated. The CD will then repeat normal, deteriorated, normal… playback. This is due to the difference in the playback modes between the normal operation mode and the CD test mode, and the interval of generating deteriorated mode and the time taken to return to the normal mode depend on the error of each clock.The time taken to turn to the deteriorated mode is at a minimum around 20 seconds while the time to return to the normal mode is maximum 40 seconds approximately.Make sure to check the sound quality in the normal operation mode.
DEH-4250SD/XNES 355 6 7 8
C
D
F
A
B
E
1 2 3 4
8.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT
FE
REFO1
CD CORE UNIT
Note :The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the PU unit must be changed, the grating should be checked using the procedure below.
Purpose :To check that the grating is within an acceptable range when the PU unit is changed.
Symptoms of Mal-adjustment :If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform track search operations, or taking a long time for track searching.
Method : Measuring Equipment Measuring Points
Oscilloscope, Two L.P.F. E, F, REFO1
Disc TCD-782 Mode TEST MODE
Checking Procedure1. In test mode, load the disc and switch the 3 V regulator on.2. Using the right and left buttons, move the PU unit to the innermost track.3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the fourth press.4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75 . Refer to the photographs supplied to determine the phase angle.5. If the phase difference is determined to be greater than 75 try changing the PU unit to see if there is any improvement. If, after trying this a number of times, the grating angle does not become less than 75 then the mechanism should be judged to be at fault. NoteBecause of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle.
HintReloading the disc changes the clamp position and may decrease the "wobble".
100 kohm
390 pF
100 kohm
390 pF
E
VREF
F
VREF
Xch Ych
L.P.F.
L.P.F.
Oscilloscope
DEH-4250SD/XNES361 2 3 4
C
D
F
A
B
E
5 6 7 8
Grating waveform
45 degrees
0 degrees
75 degrees
60 degrees
30 degrees
90 degrees
Ech -> Xch 20 mV/div, ACFch -> Ych 20 mV/div, AC
DEH-4250SD/XNES 375 6 7 8
C
D
F
A
B
E
1 2 3 4
9. EXPLODED VIEWS AND PARTS LIST
9.1 PACKING
NOTES : Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Screw adjacent to mark on the product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)
""
DEH-4250SD/XNES1
DEH-3200UB/XNUC
DEH-4250SD/XNES381 2 3 4
C
D
F
A
B
E
5 6 7 8
PACKING SECTION PARTS LIST
(2) CONTRAST TABLEDEH-4250SD/XNES, DEH-4250SD/XNES1, DEH-4290SD/XNID and DEH-3200UB/XNUC are constructed the same except for the following:
7 Accessory Assy YEA5084 YEA5084 YEA5084 *YEA5071 10 Screw Not Used Not Used Not Used BPZ20P060FTC 11 Screw Assy YEA5082 YEA5082 YEA5082 YEA5072 14 Screw Not Used Not Used Not Used CRZ50P090FTC 15 Case Assy YXB5009 YXB5009 YXB5009 Not Used
17-1 Owner's Manual CRD4434 CRD4434 CRB3094 CRD4457 17-2 Installation Manual CRD4437 CRD4437 Not Used CRD4458* 17-3 Warranty Card Not Used CRY1250 CRY1304 CRY1276* 17-4 Service Network Not Used Not Used CRY1305 Not Used* 18 Service Network Not Used CRY1251 Not Used Not Used
Part No. Language
CRD4434 English, Spanish(Espanol), Portuguese(B), Traditional Chinese, Arabic
CRD4437 English, Spanish(Espanol), Portuguese(B), Traditional Chinese, Arabic
CRB3094 English
CRD4457 English, French, Spanish(Espanol)
CRD4458 English, French, Spanish(Espanol)
DEH-4250SD/XNES 395 6 7 8
C
D
F
A
B
E
1 2 3 4
9.2 EXTERIOR(1)
B
DEH-4250SD/XNES401 2 3 4
C
D
F
A
B
E
5 6 7 8
EXTERIOR(1) SECTION PARTS LIST
(2) CONTRAST TABLEDEH-4250SD/XNES, DEH-4250SD/XNES1, DEH-4290SD/XNID and DEH-3200UB/XNUC are constructed the same except for the following:
(2) CONTRAST TABLEDEH-4250SD/XNES, DEH-4250SD/XNES1, DEH-4290SD/XNID and DEH-3200UB/XNUC are constructed the same except for the following:
Mark No. Description Part No.
1 Screw ASZ26P050FTC
2 Screw BSZ26P060FTC
3 Screw BSZ26P100FTC
4 Cable CDE9106
5 Cable See Contrast table (2)
6 Chassis CNA3151
7 Earth Plate CNC8915
8 Cushion CNM8890
9 Insulator CNN3145
10 Tuner Amp Unit See Contrast table (2)
11 Screw BPZ26P080FTC
12 Screw BSZ26P060FTC
13 Screw BSZ26P160FTC
14 Holder CND5411
15 Holder CND5423
16 FM/AM Tuner Unit CWE2098
17 Holder CND4324
> 18 Fuse(10 A) YEK5001
19 Heat Sink YNR5139
20 SD Unit See Contrast table (2)
21 Holder See Contrast table (2)
22 Button CAC4836
23 Spring(Thin) CBH2961
24 Spring(Thick) CBH2962
25 Panel See Contrast table (2)
26 Arm CNV9312
27 Arm CNW1439
28 Spring YBH5012
29 Cover YNN5030
30 CD Mechanism Module(S11) CXK5800
31 Holder YND5048
Mark No. Description Part No.
Mark No. Description DEH-4250SD/XNES DEH-4250SD/XNES1 DEH-4290SD/XNID DEH-3200UB/XNUC 5 Cable CDE9107 CDE9107 CDE9107 Not Used 10 Tuner Amp Unit CWN4805 CWN4805 CWN4805 CWN5219 20 SD Unit CWN4816 CWN4816 CWN4816 Not Used 21 Holder CND5417 CND5417 CND5417 Not Used 25 Panel CNU1015 CNU1015 CNU1015 CNU1017
DEH-4250SD/XNES 435 6 7 8
C
D
F
A
B
E
1 2 3 4
9.4 CD MECHANISM MODULE
A
CD
C
A
B
B
C
D
(A) : GEM1045
(B) : GEM1038
(C) : GEM1024
(D) : GEM1043
(C)
(C)
(A)
(A)
(D)
(D)
(A)
(A)
(D)
(A) (A)
(A)
(A)
(A)
(C)
(C)
(C)
(C)
(B)
(C)
(C)
DEH-4250SD/XNES441 2 3 4
C
D
F
A
B
E
5 6 7 8
CD MECHANISM MODULE SECTION PARTS LIST
Mark No. Description Part No.
1 Screw BMZ20P020FTC
2 Screw BSZ20P040FTC
3 Screw(M2 x 4) CBA1835
4 Washer CBF1038
5 Spring CBH3010
6 Spring CBH2855
7 Spring CBH2856
8 Spring CBH2860
9 •••••
10 Spring CBH3011
11 Spring CBH3012
12 Spring CBH3014
13 Spring CBH3015
14 Spring CBH3016
15 Spring CBH3017
16 Spring CBH3018
17 Spring CBH3019
18 Spring CBH3020
19 Spring CBL1797
20 Pickup Unit(S10.5)(Service) CXX1942
21 Bracket CND4553
22 Arm CND4555
23 Frame CND4557
24 Frame CND5217
25 Lever CND5398
26 Sheet CNN2280
27 Rack CNV8342
28 Guide CNW1171
29 Roller CNW1172
30 Arm CNW1173
31 Arm CNW1174
32 Roller CNW1175
33 Lever CNW1176
34 Arm CNW1177
35 Arm CNW1178
36 Gear CNW1180
37 Gear CNW1181
38 Gear CNW1182
39 Gear CNW1183
40 Rack CNW1184
41 Gear CNW1185
42 Gear CNW1186
43 Gear CNW1187
44 Gear CNW1188
45 Clamper CNW1190
46 Arm CNW1192
47 Holder CNW1193
48 Holder CNW1194
49 Damper CNW1197
50 Damper CNW1198
51 Arm CNW1726
52 Motor Unit(M2)(LOAD/CRG) CXC4026
53 Screw Unit CXC8894
54 Arm Assy CXC8896
55 Washer CBF1037
56 Washer CBF1038
57 Arm CND4554
58 Collar CNV6906
59 Roller CNW1196
60 Gear Unit CXC8893
61 Washer YE15FTC
62 Chassis Unit CXE1946
63 Motor Unit(M1)(SPDL) CXE2273
64 Screw JFZ20P025FTC
65 Screw JGZ17P022FTC
66 Screw IMS20P030FTC
67 CD Core Unit (S11STD-DOUT) CWX3774
Mark No. Description Part No.
DEH-4250SD/XNES 455 6 7 8
C
D
F
A
B
E
SS
EN
S
DS
EN
ST
ELI
N
ME
DS
TB
Y
RO
T0
RO
T1
SYS8V
D602RB751S-40
601
37 38 39 40 41 42848586878889
R61
6
100k
R
100k
R60
810
0k
R624 47k
R61
7
R626 10k
EP
M
SO
R10
INF
R11
INR
R12
INP
R13
OU
TP
R14
OU
TR
R27
OU
TP
L
28IN
PL
29IN
RL
30IN
FL
31S
OL
MP
LC
219
1u/1
0
C22
1
NM
1u/1
0
C22
2
NM
ME
DS
TB
Y
NC
TE
LIN
PC
L
NC
.MICRO
AS
EN
BO
VDD
BUP
SYS
NC
NC
NC
NC
VDD
R6
100k
R627
1 2 3 4
10. SCHEMATIC DIAGRAM10.1 TUNER AMP UNIT 1/2 [MAIN] (GUIDE PAGE)
A-a A-b
A-a A-b
A-bA-a
Large sizeSCH diagram
Guide page
Detailed page
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
TUNER AMP UNIT (MAIN)1/2AThe > mark found on some component parts indicatesthe importance of the safety factor of the part.Therefore, when replacing, be sure to use parts ofidentical designation.
Symbol indicates a resistor.No differentiation is made between chip resistors anddiscrete resistors.
NOTE :
Symbol indicates a capacitor.No differentiation is made between chip capacitors anddiscrete capacitors.
- Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.2. Reference voltage REFO1(1.65 V)
500 ms/div5 V/div5 V/div5 V/div10 V/div
1DSCSNS5CLCONT4LOEJ6VD
5 V/div5 V/div5 V/div5 V/div
1DSCSNS28SNS4LOEJ3HOME
5 V/div5 V/div5 V/div5 V/div
500 ms/div1DSCSNS28SNS4LOEJ3HOME
500 mV/div500 mV/div
200 ms/divcTEdFE
200 mV/div2 V/div2 V/div
500 ms/divaFINbRFOK(MONI_3)7SIN
1 V/div500 mV/div500 mV/div
2 s/div
500 ms/div
7SIN8CIN9TIN
2 V/div500 mV/div
5 μs/diveMDX7SIN
2 V/div500 mV/div
50 ms/diveMDX7SIN
500 mV/div500 mV/div500 mV/div500 mV/div
20 ms/divdFEaFINcTE9TIN
1 V/div500 mV/div500 mV/div
500 μs/divfRFAGCcTE9TIN
500 mV/div500 mV/div
2 ms/div cTEfRFAGC
500 mV/div500 mV/div
200 ms/divaFINdFE
Source On setup operation12 cm CD-DA Source On setup operation
CD-DA Play operation Spindle waveform during play operation Spindle waveform during play operation(Wider)
Focus Search waveform Track Open waveform 100 Track Jump waveform (32 Track Jump x 3)
12 cm CD-DA setup operation after loading
12 cm CD Loading operation 12 cm CD Loading operation 8 cm CD Loading operation
Ref.:GND
Mode:Normal
Ref.:GND
Mode:Normal
Ref.:GND
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:TEST
Ref.:REFO
Mode:TEST
Ref.:REFO
Mode:TEST
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
DEH-4250SD/XNES 635 6 7 8
C
D
F
A
B
E
1 2 3 4
2 V/div2 V/div2 V/div
10 μs/divgLRCKhBCLKiDATA
1 V/div1 V/div500 mV/div2 V/div
200 ms/divfRFAGCcTE8CIN7SIN
1 V/div500 mV/div500 mV/div
2 ms/divfRFAGCcTE9TIN
5 V/div5 V/div5 V/div5 V/div
500 ms/div1DSCSNS28SNS4LOEJ3HOME
5 V/div5 V/div5 V/div5 V/div
500 ms/div1DSCSNS28SNS4LOEJ3HOME
5 V/div5 V/div5 V/div
500 ms/div1DSCSNS5CLCONT4LOEJ
1 V/div1 V/div1 V/div1 V/div
500 μs/divfRFAGC9TINcTEaFIN
12 cm CD Eject operation8 cm CD Eject operation
Black Dot (800 μm) during play
12 cm CD Eject operation
32 Tracks Jump waveform (Zoom of 100 Track Jump waveform) Search operation(Outter to Inner) Digital Out waveform
Ref.:REFO
Mode:TEST
Ref.:GND
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:REFO
Mode:Normal
Ref.:GND
Mode:Normal
Ref.:AGND
Mode:Normal
DEH-4250SD/XNES641 2 3 4
C
D
F
A
B
E
5 6 7 8
DEH-4250SD/XNES 655 6 7 8
C
D
F
A
B
E
1
5
10
15
2
0
1
5
1
C201
IC1
C202
C203
C201
C35
2C
356
C365
C368
R794
C188
781
R2
8
CN
FRO
C C
1 2 3 4
11. PCB CONNECTION DIAGRAM11.1 TUNER AMP UNIT
A
A TUNER AMP UNIT
CapacitorConnector
P.C.Board Chip PartSIDE B
SIDE A
NOTE FOR PCB DIAGRAMS1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.2.Viewpoint of PCB diagrams
1
15
2530
3540
1
E E 1
1
1
1
5
E
E
1
1
EE
1
15
10
1 1 1
IC151
D751
IC161
D383
D581
D583
P301
IC581
VA661
IC582
VA662
IC583
R661R662
JA661
Q301 Q302 Q303
I
Q901
Q902
L151
Q361
R301
Q362
R302
Q363R303 R304R305 R306
R307 R308
L161
Q751
R309
Q752
R310R311R312
R313
R314
R31
5 R31
6
JA301
Q382
R901
R902
R911
R912
Q781Q782
C301
C302C303
C304
C305
C306
C307 C308C309
C310C311
C312
R161R162
R163
R36
1
C901
R362
C902
R36
3
C903
R36
4
C904
R36
5R
366
R751R752
R753 R754
C911
C912
C913
C151
C152
R385
R581
C161 C162
C163
C164
C165
C166
R789
C36
7
C369
C751
C752
C753
R790
C754
C381
D902
C582
C583
C584
C585
C586C587
C588
C
D161
IC911
D162
D163D164
R201
R205
10 20 30 40 50 60 70X
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
Y
D
RCA
WIRED REMOTE
DEH-4250SD/XNES661 2 3 4
C
D
F
A
B
E
2530
3540
1
E
12
Q363
QQ782
R36
5R
366
R789
C36
R
R201
R205
70
5 6 7 8
A
SIDE A
1
1 10
15101520
25 30 35 40 45
1 5
10
15
20
1
5
10
15
2
0
1 510 15 20 25
30 35 40 45 50
55
60
6
5
70
7
5
80 85 90 95 100
1
E
E
1
5
E
1
1
5
10
15
2
0
25
3
0
35
40
45 50 55 60 65 70 75 80 85
90 95 100 105 110 115 120 125 130
135 140 145 150 155 160 165 170 175
E
E1
E
E 1
5
1
1
1
1
1
E
E
10
1
5
10
15
E
1551
10
15
1015
20
1 515
0201
1
1
1
10
1
5
1
510
52515
2010
1
1
D941
R401
D942
R402R403R404
VA811
R405R406R407R408
R409
R600
IC351
L841
R601
R60
3
R604
D951
R605R606
R607
R608
R609
R80
1
R80
2
R80
3
R610
R80
4
R80
5
R61
3R
614
R80
8
R61
5
JA401
R61
6
R61
7R
618
R61
9
R81
0
R81
1
CN601
R812R813
R81
4
R62
0
R62
1
R81
6
R622
R623
R62
4
IC181
C201
IC182
R626C202
R627
C203 R628
R62
9
CN801
R82
1
C209
IC571
R82
2
R823
R630
R63
1
C401
R63
2
C402
C403
C210
C404
D981
C405
D982
C406
C407
C408
C214
C215
C217
C218
R831
C601
R832
C602
R833
C603
R834
C604
R641
C605
R642
C606R643
C607
C608
C609
C610
X601
IC591
R841
R842R843
R84
4
R651R652
C831
C832
C641
C841
C842
C651
BZ601
D601
D602
IC201D
801
L501
D80
2
L502
D80
3D
804
D80
5
S651
L701
IC601
Q921
D831
Q931
D651
R50
1
R502
R50
4R
505
Q181
Q951
IC641
R50
9
Q182
R701
R702
R703
R51
0
R704
R51
1
R705
R51
2
R706
R51
3
R707
R708
R709
R518
IC651
R51
9
R710
L181
L951
R711R712R713
R714
U401
R521
R71
5
R522
R716
R717
R524
L571
CN701
R529
781Q783
R530
Q591
R151
R921
R922
R923
R924
R925
C501
KN401
R926
C502
C50
3
C504
L781
C505
C50
6
C507
R54
4
C508
L591
C509
R54
7
R93
1
C701
R932
C702
C703
C510
C704
L981
X501
C511
C705 C70
6
C512
X503
C513
C514
R551
C515
R55
2
C51
6
R55
3R554
C519R557
R55
8
R55
9
C520
C521
C522
C523 C524R561
C52
5
C526
C52
7
C52
8
C52
9
R181
R951
R182
R95
2
R18
3R
184
R95
4
C53
0
R185
C531
C532
C533C534
R57
2 R573
C537
R574
C538
R575
C539
C921
R576
R577
R38
3
R578
R191R192
C540
C541
C542C543
C544
C35
1
C545
C54
6
C35
2
C35
3
C548
C35
4
C549
C35
5
C93
1
C35
6
C932
C35
7
C35
8
R781
C55
2C
553
R783
C55
4
R784
C55
5
R591
R785
C361
C55
6
R592
R786
C55
7R59
3
R787
C36
3
C55
8
R594
R788
C36
4
C55
9
R595
C365
C941
Q401
R596
Q402
R597
C368
R598
9
R59
9
C56
0
790
C56
1
L201
C56
2
R79
2
C56
3
R793
C564
R794
C56
5
R795
R796
C56
7C
568
C181
C951
C182
C183
C184
CN781
C185
L401
C186
L402
L403
C187C188
C189
C57
1
C57
2
C574
C190
C19
1
L601
C192
L602
C193
L603
C194
JA981
C195
C196
IC501
L801
C781
C785
C591
Q821
C786
Q822
C592
C787
D921
D922Q832
D931
VA
801
R202
VA802
R203
VA
803
Q841
Q842
R206
VA
806
R20
7
VA
807
R20
8
VA
808
80 90 100 110 120 130 140 150 160 170
FUSE
D CN1202
FRONT
FM
/AM
TU
NE
R U
NIT
ANTENNA
CORD ASSY
B CN1801
RESET
C CN701
DEH-4250SD/XNES 675 6 7 8
C
D
F
A
B
E
90
E
Q831
1 2 3 4
A
A TUNER AMP UNIT
170 160 150 140 130 120 110 100
1
R602
R809
C801
C802
C431
C432
C433
ZNR401
D431
IC431
R514
R515
R525
R526
R527
R531
R532
R533
R534
R535R560
C535
C536
C547
C550
C551
C362C366
L404
C788
D432
1
10
1
1
1
1
DEH-4250SD/XNES681 2 3 4
C
D
F
A
B
E
100
C362
C788
1
1
5 6 7 8
A
SIDE B
90 80 70 60 50 40 30 X
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
Y
20 10
E
E
1
D381 D382
D582
C211
C212
C213
C216
C219
C220
C221C222
Q381
R164
R166
R167
R168
R169
C905C906
C907
R381R382
R384
C167
D901
D903
C581
IC901
Q831
R165
10
1
DEH-4250SD/XNES 695 6 7 8
C
D
F
A
B
E
1 2 3 4
11.2 KEYBOARD UNIT
B
SIDE AB KEYBOARD UNIT
E
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5
10
1 5 10 15
15
1
CN
1921
C19
21
C19
22
R19
06R19
07
R19
22
R19
24
CN
1802
C18
32
C18
33
C18
34
C18
35
JA18
01C
1836
C18
37
Q18
33
C18
38
C1839
C1840
C18
41
C1842
C1843
C1844C
1845
C18
46
C18
47
C18
48
S18
01D
1831
D18
33
D18
34D
1835
73
81
D6
38
1D
D18
38
D1839
S18
11
D1840
D18
41
D1842
D1843
D1844
D18
45
D18
46
D18
47
D18
49
L192
2
D18
50
D18
51
D18
52D
1853
D18
54
D1855
D1856
D18
57
D1858
D1859
D1860
D18
61
D18
62
D18
63
R18
60
D18
65
R18
61
R18
71R
1872
R18
73R
1874
R18
75
R18
76
R18
77
R18
78R
1879
R18
80
R18
81R
1882
R18
94
S18
71S
1872
S18
73
S18
74
IC18
91
S18
75S
1876
S18
77S
1878
S18
79S
1880
S18
81
S18
82
D1866
1020
3040
5060
7080
9010
011
012
013
014
015
0X
40 30 20 10
0
Y
160
US
B
AU
X
EJE
CT
65
43
21
CLK
DIS
P
LIS
TR
OT
AR
Y C
OM
MA
ND
ER
S.R
trv
BA
ND
SR
CC
EL
MO
DU
LE
DEH-4250SD/XNES701 2 3 4
C
D
F
A
B
E
5 6 7 8
B
SIDE BB KEYBOARD UNIT
160150
140130
120110
10090
8070
6050
4030
20
X
403020100Y
10
5
1
E
1
5
10
1520
1
1
5 15
1
2010
C1901
C1902
C1923
D1901
R1901
R1902
R1903
R1904
R1905
R1908
R1909
IC1901
R1910
L1801
R1923
R1925
R1941
R1942
R1943
R1944
R1945
R1946
R1947
R1948
R1949
VA
1801
VA
1802
CN
1801
C1801
C1802
C1803
C1804C
1805
C1806
C1807
C1808
X1901
D1802
D1803
D1804
D1805
R1801
R1802
R1803
R1804
R1805
Q1831
Q1832
R1811
R1812
R1813
R1814
R1815
R1816
R1817
R1818
R1819
L1901
R1831
R1835
R1837
R1838
R1839
R1840
R1841
R1842
R1843
R1844
R1845
L1921
R1849
R1851
R1854
R1855
R1856
R1857
R1858
R1859
R1862
R1863
R1864
R1865
R1866
R1867
C1891
R1891
R1892
R1893
AC
N801
DEH-4250SD/XNES 715 6 7 8
C
D
F
A
B
E
1 2 3 4
11.3 CD CORE UNIT(S11STD-DOUT)
C
SIDE AC CD CORE UNIT (S11STD-DOUT)
1 510 15 20 25
30 35 40 45 50
55
60
6
5
70
75
80 85 90 95 100
1 5 10 15
1 5 10 15
1 5
10
1
0151
152025
29
30
1
R214
R215
R216
R21
7
R21
8
R225
R229
R232
R23
5
R23
6
C203
C204
TH201
C207
C209
R246
C210
X201
C211
C212
C213
C214
C215
C216C21
7
C21
8
C219 C221C222C223
C224
C225
R26
2
R26
3
C22
8
R264
C235
C238
C240
R281
R282
R294
IC201C299 R305
R306
R307
R308
CN101
R707
R708
R709
R710
C102
CN701
CN702
C304C305
C306
C307
C701
C702
S901
D101
IC301
10 20 30 40 50 60 70X
60
50
40
30
20
10
0
Y A CN701
PICKUP UNIT(P10.5)(SERVICE)
F
E REFO1 M1SPINDLEMOTOR
M2LOADING/CARRIAGE
MOTORHOME
DEH-4250SD/XNES721 2 3 4
C
D
F
A
B
E
5 6 7 8
C
SIDE BC CD CORE UNIT (S11STD-DOUT)
70 60 50 40 30 20 10X
60
50
40
30
20
10
0
Y
E
E
1
1
E
R601
R602
R603
R604R606
R237
R240
C205
C206
R242
R243
R245
R253R254
C601
C602
C220
R260
C229
C231
C232
C233
C236
C239
R283
R291R292
R293
Q101
Q102
R296
R297
R299
C281
C282
C283
C284
R101
R102
R103
R106
R108
R109
R701
R702
R706
R711
C101
C104
R721R722
R723
C301
C110C111
C308
C703 C705
C707
C708
C710
S903
S905
Q201
8EJ
DSCSNS
DEH-4250SD/XNES 735 6 7 8
C
D
F
A
B
E
1 2 3 4
11.4 SD UNIT
D
SIDE AD SD UNIT
SIDE BD SD UNIT
1 5 10
1 015
15
20
CN1202
CN1203
10 20 30 40X
40
30
20
10
0
Y
10 20 30 40X
10
20
30
40
0
Y
A CN781
DEH-4250SD/XNES741 2 3 4
C
D
F
A
B
E
5 6 7 8
12. ELECTRICAL PARTS LISTNOTE: Parts whose parts numbers are omitted are subject to being not supplied. The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Meaning of the figures and others in the parentheses in the parts list. Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V
Circuit Symbol and No. Part No.
A:DEH-4250SD/XNES
B:DEH-4250SD/XNES1
C:DEH-4290SD/XNID
D:DEH-3200UB/XNUC
Unit Number : CWN4805(A,B,C)
Unit Number : CWN5219(D)
Unit Name : Tuner Amp Unit
Unit Number : CWN4813(A,B,C)
Unit Name : Keyboard Unit
Unit Number : CWN5220(D)
Unit Name : Keyboard Unit
Unit Number : CWX3774
Unit Name : CD Core Unit(S11STD-DOUT)
Unit Number : CWN4816(A,B,C)
Unit Name : SD Unit
AUnit Number : CWN4805(A,B,C)Unit Number : CWN5219(D)Unit Name : Tuner Amp Unit
MISCELLANEOUS
IC 151 (A,62,91) IC R5523N001BIC 161 (A,50,102) Regulator IC BD9781HFPIC 181 (A,108,75) IC WM8761GEDIC 182 (A,80,99) IC NJM2872F05IC 201 (A,75,118) IC PM9012A
IC 351 (A,83,142) IC PA2030AIC 431 (B,152,131) IC NJM2885DL1-33IC 501 (A,121,50) IC R5S7262ZD144FPUIC 571 (A,148,51) Software Unit CWW1967
IC 581 (A,24,80) IC S-1172B33-E6
IC 583 (A,24,89) IC BH12PB3WHFVIC 591 (A,102,23) IC 341S2162IC 601 (A,128,96) IC PEG640A8IC 651 (A,119,108) IC S-80827CNNB-B8MIC 901 (B,24,70) Regulator IC S-1132B33-U5
C 913 (A,16,114) CEVW101M16C 921 (A,128,127) CKSSYB104K16C 941 (A,103,128) CKSSYB473K16
BUnit Number : CWN4813(A,B,C)Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1891 (A,144,18) Remote IC GP1UXC14RKIC 1901 (B,87,23) IC PEG642A8D 1804 (B,87,14) Diode DAN202UD 1805 (B,91,15) Diode DAP202UD 1831 (A,152,39) LED CL-195SR-CD
D 1833 (A,7,29) LED CL-195SR-CDD 1834 (A,18,28) LED CL-195SR-CDD 1835 (A,30,27) LED CL-195SR-CDD 1836 (A,8,12) LED CL-195SR-CDD 1837 (A,19,12) LED CL-195SR-CD
D 1838 (A,30,13) LED CL-195SR-CDD 1839 (A,77,8) LED CL-195SR-CDD 1840 (A,87,8) LED CL-195SR-CDD 1841 (A,101,8) LED CL-195SR-CDD 1842 (A,111,8) LED CL-195SR-CD
D 1843 (A,125,8) LED CL-195SR-CDD 1844 (A,135,8) LED CL-195SR-CDD 1845 (A,43,24) LED CL-195SR-CDD 1846 (A,64,28) LED CL-195SR-CDD 1901 (B,97,31) Diode 1SS355
C 1921 (A,89,25) CKSRYB105K10C 1922 (A,89,23) CKSRYB105K10C 1923 (B,99,22) CKSRYB105K10
BUnit Number : CWN5220(D)Unit Name : Keyboard Unit
MISCELLANEOUS
IC 1891 (A,144,18) Remote IC GP1UXC14RKIC 1901 (B,87,23) IC PEG642A8Q 1831 (B,40,8) Transistor IMX9Q 1832 (B,40,15) Transistor LTC114EUB
D 1804 (B,87,14) Diode DAN202UD 1805 (B,91,15) Diode DAP202UD 1831 (A,152,39) LED CL-195SR-CDD 1833 (A,7,29) LED CL-195SR-CDD 1834 (A,18,28) LED CL-195SR-CD
D 1835 (A,30,27) LED CL-195SR-CDD 1836 (A,8,12) LED CL-195SR-CDD 1837 (A,19,12) LED CL-195SR-CDD 1838 (A,30,13) LED CL-195SR-CDD 1839 (A,77,8) LED CL-195SR-CD
D 1840 (A,87,8) LED CL-195SR-CDD 1841 (A,101,8) LED CL-195SR-CDD 1842 (A,111,8) LED CL-195SR-CDD 1843 (A,125,8) LED CL-195SR-CDD 1844 (A,135,8) LED CL-195SR-CD
D 1845 (A,43,24) LED CL-195SR-CDD 1846 (A,64,28) LED CL-195SR-CDD 1849 (A,7,31) LED CL-195PG-CDD 1850 (A,18,30) LED CL-195PG-CDD 1851 (A,30,29) LED CL-195PG-CD
D 1852 (A,8,11) LED CL-195PG-CDD 1853 (A,19,11) LED CL-195PG-CDD 1854 (A,30,11) LED CL-195PG-CDD 1855 (A,76,8) LED CL-195PG-CDD 1856 (A,88,8) LED CL-195PG-CD
D 1857 (A,100,8) LED CL-195PG-CDD 1858 (A,112,8) LED CL-195PG-CDD 1859 (A,124,8) LED CL-195PG-CDD 1860 (A,136,8) LED CL-195PG-CDD 1861 (A,45,24) LED CL-195PG-CD
D 1862 (A,62,28) LED CL-195PG-CDD 1865 (A,150,39) LED CL-195PG-CDD 1901 (B,97,31) Diode 1SS355X 1901 (B,87,29) Radiator 10.0 MHz CSS1577S 1801 (A,5,36) Push Switch CSG1155