ONKYO. SERVICE MANUAL COMPACT DISC RECEIVER MODEL CR-185 CR-185 REF. NO. 3516 ios Sah 2 Spat aie. eS res fran recay, * = FS . * le : : ‘ hewn tthe ee > [aaa t ee — s ae: Sn ete, see Bs oe Ta mie nae 2 Tae TERS I a onBee TS! TE a AEN Te : ee pe as Le fects} BPRSing We wo * oe = eS a Black and Silver models |UP sd 30V AC, 50Hz id SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK /\ ON THE TABLE OF CONTENTS SHOCHICAHONG......i...---..0cld-dcese RE RN2 SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE Caution on replacement ofoptical pickup..............ssccesesoesees 2 CRHICAL POR RISK 'OF FIRE ANDELECTRIG SHOCK. Protection of eyes from laser beam..........ccccssssssesscestsnrsesececens 3 REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PARTS NUMBERS APPEAR AS SHOWN IN THIS Laser warming labelscccsscarsscnsexssiennneservasnencvsncnsnvinenncersurene 3 MANUAL. Microprocessor-Comnection Ciagram.......scsessscesssescesssesceeerns 4 Microprocessor terminal descriptiOns.........ssssscsscsesssnneaseees 5 MAKE LEAKAGE-CURRENT OR RESISTANCE MEA- ICblock diagrams and descriptions............ceccsscsccreesceeceseees 6 SUREVEN ie FO DETERMINE THAT EXPOSED PANTS Removementol ay 888 Vssisssssassscncsssenenessnsvcwsssvencevssnswanetess 13 ARE ACCEPTABLY INSULATED FROM THE SUPPLY ats CIRCUIT BEFORE RETURNING THE APPLIANCE TO Mechanism -exploded View.........cccssessssssesecceerscsscssseceesesnseees 14 THE CUSTOMER. PAGES SE ianavscinsitecdecaenibecoeniossnainaeineinnennmnanoeiamemanbetienn 16 Exploded ViGWosscnsmarnsnamsnncnnenmnmnmnnnancmnnes: 17 CD adjustment procedures..........ccsssscsesssessecesssecssecsvaterssnneces 19 Tuner adjustment procedures.........ccscccscsessssessccsseeconsecesenenens 21 DOUVICE PrOCC AUS ccsnaveesavessteensereriancommerunnmnaronanmnenes a2 Pcboard view from soldering Side................ssescsscesssersseseaoees 23 SC EETIALIC A DEAN. «once scnvesnonnncenssnnomnnnendenstnnrasasnnnasesaninnsnanKiVind 25 Pcboard view from soldering side..............cscccsssscseconsescneents 29 Printed circuit board-parts list...........:.ssssessssnrssensneereeeraneeees 31 Schematic diagram (Mechanism).............ccccssccesssssosrreseeennees 34 ON KYO Blsck Giapramssissiesnmarnesanncnnionemimnenmnaer 35 PCR WIoo escsnsinnssxnsitnovsiondsnannihnaapnnnisnindxensniannachannselRCRTeS 38 AUDIO COMPONENTS
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ONKYO. SERVICE MANUAL
COMPACT DISC RECEIVER
MODEL CR-185
CR-185
REF. NO. 3516
ios Sah 2 Spat aie. eS res
fran recay, * = FS . * le : : ‘ hewn tthe ee > [aaa t
ee — s ae: Sn ete, see Bs oe Ta mie nae 2 Tae TERS I a on Bee TS! TE a AEN Te : ee pe as Le fects } BPRS ing We wo * oe
= eS a
Black and Silver models
| UP sd 30V AC, 50Hz id
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK /\ ON THE
TABLE OF CONTENTS
SHOCHICAHONG. .....i...---..0cld-dcese RE RN 2
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE Caution on replacement of optical pickup..............ssccesesoesees 2
CRHICAL POR RISK 'OF FIRE ANDELECTRIG SHOCK. Protection of eyes from laser beam..........ccccssssssesscestsnrsesececens 3 REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PARTS NUMBERS APPEAR AS SHOWN IN THIS Laser warming labels cccsscarsscnsexssiennneservasnencvsncnsnvinenncersurene 3
MAKE LEAKAGE-CURRENT OR RESISTANCE MEA- IC block diagrams and descriptions............ceccsscsccreesceeceseees 6
SUREVEN ie FO DETERMINE THAT EXPOSED PANTS Removementol ay 888 Vssisssssassscncsssenenessnsvcwsssvencevssnswanetess 13 ARE ACCEPTABLY INSULATED FROM THE SUPPLY ats CIRCUIT BEFORE RETURNING THE APPLIANCE TO Mechanism -exploded View.........cccssessssssesecceerscsscssseceesesnseees 14
THE CUSTOMER. PAGES SE ianavscinsitecdecaenibecoeniossnainaeineinnennmnanoeiamemanbetienn 16
This label ts located on the left side of top cover,
LUOKAN 1 “CLASS 1 LASER LASERLAITE
PRODUCT” KLASS 1
LASER APPARAT
ADVARSEL
Denna maekning er anbragt pa apparatets hojre side og indikerer,
at apparatet arbejder med laserstraler af klasse 1, hvilket betyder,
at der anvendes laserstraler af svageste klasse, og at man ikke
pa apparatets yderside kan blive udsat for utilladelig kraftig
straling.
APPARATET BQ@/R KUN ABNES AF FAGFOLK MED SE RALIGT
KENOSKAB TIL APPARATER MED LASERSTRALERI
Indvendigt i apparatet er anbragt den her gengivne
advarselsmérkning, som advarer imod at foretage sadnne indgreb i apparatet, at man kan komme til at udsaetle sig for laserstraling.
VAROITUS! LAITTEEN KAYTTAMINEN MUULLA KUIN TASSA KAYTTOOHJEESSA MAINTULLA TAVALLA SAATTAA ALTISTAA KAYTTAJAN TURVALLISUUSLUOKAN 1 YLITTAVALLE NAKYMATTOMALLE LASERSATEILYLLE.
MICROPROCESSOR CONNECTION DIAGRAM
uPD78044AGF-123 O30!
SIGNAL
PROCESSOR ic
17 0703 SYSTEM
RESET
CDODATA
1 | { I '
ul =
out
iN
OPERATION KEY
+Sv x
i a a Mat ei 28 p32 ) PD78044AGF ee
040! 33 abs PIs PI2
V LOAD
Pi
PIO
P9
P8
P7
PS
[4 in sa iw iN iw ~ |S jo ® jo |~ io
re SWITCH 419MHz Xx'Ts Ral
TESEIN osc de tem) =] °
FL TUBE ~
Q13i PLL SYNTHESIZER AND CONTROLLE P uzzed ('D)
~ Ww ’
LM7OO! a
o, &) Q591.0592 AMP +8
sw TRAY MOTER
@l foriver | se |
PicK UP
| 7 a aist RDS DECOODER
PC1I34 OCS er
>~o a RI a6 3 IN/OU r= 5.
ee ee ee ie eee ee eee, ee ee Table 1
Region __|Frequency range _|Channel space _| 76~90MHz 100kHz
| Operation _|
VOL UP
VOL DOWN
87.50~ 108MHz 50kHz
87.50~ 108MHz
U.S.A
Table 2
87.9~~ 107.9MHz
[AM10k|Region [Frequency range_|Channel space _| (0 [tapan _|s22~1629Kt | kHz [0 [Europe __|s22~1620K | 9kHHz 0 |Wordwi ze
531~ 1602kHz 530~ 1710kHz 10kHz
Table 3
TERMINAL DESCRIPTIONS
Pin No.
7
Description .
4G~10G Grid output terminals. |
< a Power supply terminal.
CDCLK Clock output terminal. Connect the terminal CLOCK of signal processor IC.
atch output terminal. Connect the terminal XLAT of signal processor IC.
ata output terminal. Connect the terminal DATA of signal processor IC.
Digital output control output terminal. Not used.
CDDATA
et Ne
ph 3 PMUT Digital muting output terminal. Connect the terminal MUTE of signal processor IC.
lock output terminal for SOCK. Connect the terminal SQCK of signal processor IC.
ense signal input terminal. Connect the terminal SENS of signal processor IC.
OQ
15 SENS
ata input terminal from SQSO. Connect the terminal SQSO of signal processor IC.
“19
=
o— ~] stem reset input terminal.
REO _ [Stereo broadcast detection input terminal. L when STEREO.
roadcast detection input terminal. L when received the broadcast more than muting level.
20
21
22
Q AVSS
VOL DOWN Volume control output terminals.
VOL UP Refer the table 1.
23. _{SBASS | 24 AREA
25 IN/OUT
26 SIGNAL
27
28
round terminal for D/A converter.
Super bass control output terminal.
Aigiinmin ” z
BS 17 1A
setting terminal for the Frequenc °
Input terminal for tray open/close detection switches.
Signal jevel input terminal for automatic memory.
Operation key connection terminals.
0 oO Analog power supply for D/A converter.
w i=) > < fs zs Reference power supply for D/A converter.
3 = Power stoppage detection terminal.
32
3
3
Crystal! resonator connection terminal for sub system.
Ground terminal.
> Ceramic resonator connection termina] for main system.
Connect the 4.19MHz ceramic resonator.
36
37
38
39
Clock output terminal for PLL IC and the source selector IC.
BUZ
RDATA
FCE/ST
Buzzer control output terminal.
< ”
Data output terminal for PLL IC and the source selector IC.
2 =
= &. = i¢:) 3
: Pe
=
< o ;
od a
"~~ FERISER ERR B18 8° Strobe output terminal for the source selector IC and electric volume.
. mena TEs mays presente ey iGaipat Da” = UB yet ritmo
» enable terminal for PLL IC.
Power supply terminal.
HR Mag hy segetine! AT lap nse + 4
MP POWER
42
43
44
5
DSDATA Teva
DSSIG
Data input terminal from RDS decoder.
RDS broadcast detection terminal.
Sub code detection terminal. Connect the terminal SCOR of signal processor IC,
Clock input terminal from RDS decoder. & yore hee)
Q
iF Cc) A
SYSIN System code input terminal.
> ~J emote control signal input terminal.
Connect the ground terminal.
” re]
3 =
SYSOUT
TU MUTE
ANGMUT
49 stem code output terminal.
= uting output terminal for tuner section.
51
52
53
54
55
36
57
58
59 “7
Analog muting output terminal.
ositive power supply terminal.
“J CD POWER ower supply terminal for CD mechanism.
DEFECT
CD RESET
¥ fect output pin for CD mechanism.
Reset output termina! for CD mechanism.
FOK input terminal from CD mechanism. 8 Ss ons x o) =
Pull-down resistor connection terminal for FL tube controller.
~
| oy) |
IC BLOCK DIAGRAM AND DESCRIPTIONS
CXA1372Q (Servo Signal Processor)
WOLVUVdWO) MOONIM 4a Cc
- »
2 a a
"“ ~<
fm 2
¥200930 Nd sNd
NOLLYSN GMO)
SV ONIMIVUL
w¥300330 $S3uGdYv
w32S193u
L4IHS INN
Signal output to count the track numbers.
This terminal outputs FZC,and SSTOP to according command from the microprocessor.
Mirror comparator ourput terminal.
Defect comparator outpul terminal.
ry control input terminal.
EFM comparator outpul terminal.
Focus OK comparator ourpul terminal.
Defect bottom hold output terminal.
Defect bouom hold input terminal from CC1. Defect bottom hold capacitor connection terminal.
Mirror hold capacitor connection temninal.
YMBOL T A
MBOL j|V/O |DESCIRPION Mid-point voltage input terminal.
Connect the capacitor between FS3 and this pin when the high frequency gain focus servo is dropped. Focus servo high frequency gain changeover input terminal. Input terminal for the low frequency boost of
Focus drive ourput terminal.
Inversion input terminal of focus amplifier.
Sag ee waveform.
terminal.
3}FS3
Zn
wi Tl tt Oo
a
G
Tracking drive output terminal.
Inversion input terminal of tracking amplifier.
No-inversion input terminal of sled amplifier.
Sled drive output terminal.
Inversion input terminal of sled amplifier.
Peak setting input of phase correction of focus tracking.
Tracking zero-cross comparator input terminal.
Tracking error input terminal.
Capacitor connection terminal for time constant | Fe QaiQie ~|9 OKO
QO OAH IE
: j rar: > ay 5 £|& a 3; 15 FT =e 5 S z : = : 3 B ey > | 0 This terminal is flowed the current so that the
8.6436MHz | 51 japre fo] Control output for aperture correcuion. H when L ch.
| 10 [TEST |__| Test terminal | 52 |vss | |Grounduermind sd ee | 12 [vss] Grounduermined 33.8688MHz input. 13-15 NC | 54 |xTAO | O [Crystal oscillation circuit output of 16.9344MHz._| pene [= [tbe Se ek Clock input for variable pitch from VCO H when 33.8688MHz.
Serial data at L and paraller data at H. | 68 |MUTE | O [Mutingcontol ouput. ActiveH. | 31__|wock | 1 [D/A interface for 48 bits slot. Word clock f=2Fs. | | 69 |SENS | __|Sens output. Output to the microprocessor | 32 |LRCK _| I |D/A interface for 48 bits slot. LR clock f=Fs. | 70 |xXRST _| I |Systemreset.Resctatthelowkevel. | 33 |vpp _|_—_—|Powersupplyterminal(+5V) | | 71 DATA ___|_ I [Serial datainputfrom the microprocessor. ar i putterminals at a | hu tae from the microprocessor,
tJ . Insert disc (YEDS-18) and press D PLAY button.
. Connect oscilloscope to RF/ Servo board TP (FE).
& WW . Adjust RV102 so that the waveform is as shown
in the figure below. (focus gain adjustment)
high tracking gain (higher fundamental wave than for low gain)
VOLT/OlV: 1V TIME/DIV: 2mS
VOLT/DIV: 100mvV TIME/OIV: 2mS
a Want Wy veetirete.
NAAT, Py addy
100 mV a~— OV
Ov
@ Incorrent Examples (DC level changes more than
on adjusted waveform) . ; Adjustment Location: RF/ Servo board
low focus gain 7
VOLT/DIV: 100mv TIME/DOIV: 2mS
—= OV
high focus gain VOLT/DIV. 100 TIME/DIV. 2mS
— 20 —
ADJUSTMENT PROCEDURES SERVICE PROCEDURES
Preparation 1. Replacing the fuses 3. Safety-check out
1. Input 2. Outputs #3 After correcting the original service problem, perform the
FM mono: 1kHz, 75kHz devi., 60dB/ 2 V it This symbol located near the fuse indicates that the
EM stereo: 1kHz, 67.5kHz devi., 60dB/ 2 V fuse used is fast operating type. For continued protection against
Connect the non-inductive type resistor of 8 ohms
to the all speaker terminals unless otherwise noted.
following safety check before releasing the set to the customer.
Connect the insulating-resistance tester between the plug of power
Stereo modu- Tuning Output - Adjustment Adjust Remarks lator output | frequency | indicator point for
ee IFT on the ;
Connection FM SG Item of instrument output
99.0MHz 1kHz 75kHz devi. 65dBf(60dB)
FM MUTE/MODE switch: MONO
99.0MHz
Pour une protection permanente, n'utiliser que des fusibles de
meme type. Ce darnier est indique la qu le present symbol est
appose.
CIRCUIT NO. PART NO. DESCRIPTION
F90 | 252063 0.5A-SE-EAK, Primary
Pilot signal 19kHz 7.5kHz devi. fire hazard, replace with same type fuse. For fuse rating refer to supply cord and the screw on the back panel.
the marking adjacent to the symbol. Specifications: More than 10 MQ at 500V.
FM ADJUSTMENT | it Ce symbole indique que le fusible utlise est a rapide.
- Memory preservation
This unit does not require memory preservation battenes.
A built-in memory power back-up system preserves contents of
the memory during power failures and even when the unit is
unplugged.
The unit must be plugged in and the power switch turned on and
off once in order to charge the back-up system. Note that since Signal FM MUTE/MODE 99.0MHz | Oscilloscope | R101 output switch: AUTO
AC voltmeter To perform a result, please follow the procedure below. or of 2 weeks) after the last time power has been turned off. This
Generator | Oscilloscope
19.2dBf(14dB) this 1s not a permanent memory, the power switch must be turned 2. To Initialize the unit
. a on and off a few times each month the keep the back-up system This device employs a microprocessor to perform various
99.0MHz Ext. mod.60dB
operative. functions and operations. If interference generated by an external. P
The period of the time during which memory contents are power supply, radio wave, or other electrical source results in
preserved after power has last been turned off varies depending accident which causes the specified operations and functions to
Output on climate and placement of the unit. On the average, memory Terminal | operate abnormally. |
contents are protected over a period of 3 to 4 weeks (a minimum
eniod is shorted when the unit is e d to very high humidit 1. Press and hold down the MEMORY button, then press P - CMA IS EAD OSEE NO YSEY Mer DEMIGIY
<Fig. 1> the OPEN/CLOSE button.
2. Press the POWER button.
3. After “clear” is displayed, the preset memory and each
or uSed in an area with an extremely humid climate.
Output Terminal
_ Oscillo- mode stored in the memory, are initialized and will
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NCAF-5458 =
PREAMPLIFIER CIRCUIT PC BOARD
: ay —-e— ew owmas”
ow Sa ee o7( wwe
we, FE
ea Ar A509
—4 bh c503
mee R577
RS 75513
ale ee RS17
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J473
SPEAKER TERMINAL PC BOARD
F9OI
— 25135459 NCPS-5459
POWER SUPPLY CIRCUIT PC BOARD
OA
A
SCHEMATIC DIAGRAM
[ NAAF—5458-2 | - 7 ‘
| {
: | | j
|
nr
dane ee
wees Le
eee bee ee
oS ie tee ee
ee ee wee
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| HI . A ~ 500000: ~—— {56606060006 -— - ——--- =
[NOTE] @ THE COMPONENTS IDENTIFIED BY MARK AN ARE CRITICAL FOR SAFETY. REPLACE ONLY WITH PART NUMBER SPECIFIED.
@ VOLTAGE (MEASURED WITH VOLTMETER) CIIS DC VOLTAGE. (NO INPUT: SIGNAL) @ ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
@ ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
@ ALL DICDES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED. @ ELECTROLYTIC CAPACITORS (-#) ARE IN sF/W. @ ALL CAPACITORS ARE IN pF/SOWV UNLESS OTHERWISE NOTED. E50 030-3pF. 330-33pF. 331-3 30pF. 333-70. O33 nF
@ ALL RESISTORS ARE IN OHMS 1/4 WATTS UNLESS OTHERWISE NOTED. @ THE THICK LINES IN PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
Coaade PRINTING SIDE | @ CIRCUIT 1S SUBJECT TO CHANGE FOR IMPROVEMENT.
100 Ohm +5%, 1/2W, Metal oxide MPC708-2WK, 0.22, Metal plate 8.2 Ohm+5%, 1/2W, Metal oxide
NSCT-10P8381
NSCT-4P875
NSCT-5P896
SPEAKER TERMINAL PC BOARD (NAETC-5464-2)
CIRCUITNO. PARTNO.
Coils
1501,1502 231176S
Resistors
R573,R574 453530564T
Terminal
P5Ol 25060086
Wire holder
JLSOla 2505 1083
Wire trap
JL502b 25055626
CD MECHANISM PC BOARD
CIRCUITNO. PARTNO.
IC101 24840089
IC 102 22240551
IC103 22240101
RV1IO1,RV102 24840085
swi0l 24840070
CN101 24840072
CN102 24840071
DESCRIPTION
S-1.3C, $ COIL
5.6 Ohm + 5%, 1/2W, Metal
NTM-~4PDML30
NSCT-4P875
NPLG-5P588
DESCRIPTION
CXA1372AQ, IC
LA6532M-T1, IC
MS4641L, IC 10K, Trim resistor
Leafswitch
Connector pin
Connector socket
CAUTION: Replacement for transistor of mark * , if necessary
must be made from the same beta group (HFE) as the
original type.
NOTE: THE COMPONENTS IDENTIFIED BY MARK A\ ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
er ee
— ve a.
SCHEMATIC DIAGRAM —CD mechanism section—
het ze eae P< || |
ole To
SS ta
i
————__————
> CeereeD GD CREED CD GETERESEEEED OD GEEEREEEED CP CREED CO CRETE GS GEIETENEEES GD TENE G5) CEEERSEEED GD GENE GAP GREETEEEEED CP CRSSEEEEERS GD ED GD GEE OD GERNEEED CD EERSEEEEE® 6D SEEEEESD 2 GEE, &> CES SP ee oe