LC-10A3E In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. MODEL LC-10A3E LCD COLOUR TELEVISION SERVICE MANUAL S51T1LC-10A3H SHARP CORPORATION Page » IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2 » SPECIFICATIONS ................................................................................................................................ 3 » OPERATION MANUAL ......................................................................................................................... 4 » DIMENSIONS ....................................................................................................................................... 5 » DISASSEMBLY OF THE SET ............................................................................................................... 6 » ADJUSTING PROCEDURE OF EACH SECTION ............................................................................... 9 » TROUBLE SHOOTING TABLE ........................................................................................................... 12 » CHASSIS LAYOUT ............................................................................................................................. 16 » BLOCK DIAGRAM .............................................................................................................................. 18 » DESCRIPTION OF SCHEMATIC DIAGRAM ..................................................................................... 19 » SCHEMATIC DIAGRAM ..................................................................................................................... 20 » PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 27 » PARTS LIST Ë ELECTRICAL PARTS ..................................................................................................................... 31 MAIN UNIT ..................................................................................................................................... 31 TERMINAL UNIT ............................................................................................................................ 35 OPERATION UNIT ......................................................................................................................... 36 LED UNIT ....................................................................................................................................... 37 Ë ACCESSORIES PARTS ................................................................................................................. 37 Ë PACKING PARTS ........................................................................................................................... 37 Ë CABINET PARTS LOCATION ........................................................................................................ 38 Ë CABINET AND MECHANICAL PARTS .......................................................................................... 39 » PACKING OF THE SET ...................................................................................................................... 40 CONTENTS SERVICE MANUAL LCD COLOUR TELEVISION MODEL LC-10A3E TENTATIVE
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Transcript
1
LC-10A3E
In the interests of user-safety (Required by safety regulations in some countries) the set should be restoredto its original condition and only parts identical to those specified should be used.
MODEL LC-10A3E
LCD COLOUR TELEVISION
SERVICE MANUALS51T1LC-10A3H
SHARP CORPORATION
Page» IMPORTANT SERVICE SAFETY PRECAUTION ................................................................................. 2» SPECIFICATIONS ................................................................................................................................ 3» OPERATION MANUAL ......................................................................................................................... 4» DIMENSIONS ....................................................................................................................................... 5» DISASSEMBLY OF THE SET ............................................................................................................... 6» ADJUSTING PROCEDURE OF EACH SECTION ............................................................................... 9» TROUBLE SHOOTING TABLE ........................................................................................................... 12» CHASSIS LAYOUT ............................................................................................................................. 16» BLOCK DIAGRAM .............................................................................................................................. 18» DESCRIPTION OF SCHEMATIC DIAGRAM ..................................................................................... 19» SCHEMATIC DIAGRAM ..................................................................................................................... 20» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 27» PARTS LISTË ELECTRICAL PARTS..................................................................................................................... 31
MAIN UNIT ..................................................................................................................................... 31TERMINAL UNIT ............................................................................................................................ 35OPERATION UNIT ......................................................................................................................... 36LED UNIT ....................................................................................................................................... 37
Ë ACCESSORIES PARTS ................................................................................................................. 37Ë PACKING PARTS ........................................................................................................................... 37Ë CABINET PARTS LOCATION ........................................................................................................ 38Ë CABINET AND MECHANICAL PARTS .......................................................................................... 39
» PACKING OF THE SET ...................................................................................................................... 40
CONTENTS
SE
RV
ICE
MA
NU
AL
LCD
CO
LOU
R T
ELE
VIS
ION
MO
DE
L LC-10A
3E
TENTATIVE
2
LC-10A3E
CAUTION: FOR CONTINUED PROTECTIONAGAINST A RISK OF FIRE REPLACE ONLY WITHSAME TYPE FUSE. F3701 (1.25A, 250V), F3702(1.25A, 250V), F3751 (2.0A, 250V) FUSE.
Many electrical and mechanical parts in LCD televisionhave special safety-related characteristics.These characteristics are often not evident from visualinspection, nor can protection afforded by them benecessarily increased by using replacement componentsrated for higher voltage, wattage and etc.Replacement parts which have these special safetycharacteristics are identified in this manual; electricalcomponents having such features are identified by “ å”
IMPORTANT SERVICE SAFETY PRECAUTIONË Service work should be perfomed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
and shaded areas in the Replacement Parts Lists andSchematic Diagrams .For continued protection, replacement parts must beidentical to those used in the original circuit.The use of a substitute replacement parts which do nothave the same safety characteristics as the factoryrecommended replacement parts shown in this servicemanual, may create shock, fire or other hazards.
WARNING
1. For continued safety, no modification of any circuitshould be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER(Fire & Shock Hazard)
Before returning the receiver to the user, performthe following safety checks:
1. Inspect all lead dress to make certain that leads arenot pinched, and check that hardware is not lodgedbetween the chassis and other metal parts in thereceiver.
2. Inspect all protective devices such as non-metalliccontrol knobs, insulation materials, cabinet backs,adjustment and compartment covers or shields,isolation resistor-capacitor networks, mechanicalinsulators and etc.
3. To be sure that no shock hazard exists, check forleakage current in the following manner.
• Plug the AC cord directly into a 110~240 volt AC outlet,and connect the DC power cable into the receiver'sDC jack. (Do not use an isolation transformer for thistest).
• Using two clip leads, connect a 50k ohm, 10 watt resistorparalleled by a 0.15µF capacitor in series with allexposed metal cabinet parts and a known earth ground,such as electrical conduit or electrical ground connectedto an earth ground.
• Use an AC voltmeter having with 5000 ohm per volt, orhigher, sensitivity or measure the AC voltage dropacross the resisor.
• Connect the resistor connection to all exposed metalparts having a return to the chassis (antenna, metalcabinet, screw heads, knobs and control shafts,escutcheon and etc.) and measure the AC voltage dropacross the resistor.All checks must be repeated with the AC cord plugconnection reversed. (If necessary, a nonpolarizedadaptor plug must be used only for the purpose ofcompleting these checks.)Any reading of 35V peak (this corresponds to 0.7milliamp. peak AC.) or more is excessive and indicatesa potential shock hazard which must be correctedbefore returning the monitor to the owner.
TO EXPOSEDMETAL PARTS
CONNECT TOKNOWN EARTHGROUND
DVMAC SCALE
50k ohms.10W
0.15 µFTEST PROBE
3
LC-10A3E
SpecificationsLCD panel ............................................................................................... 10.4" TFT LCDNumber of dots ..................................................................................921,600 dots VGAVideo colour systems....................................................................... PAL/NTSC/SECAMTV FUNCTION
TV Standard (CCIR) ..................................................................................... I/DK/BGTV Tuning System .......................................................................Auto preset 100 ch.STEREO/BILINGUAL ............................................................................ NICAM, IGRAUTO PRESET ................................................................................................... YESCATV ..................................................................................................... ~Hyper Band
Lamp life ................................................................................................... 60,000 HoursViewing angles ................................................................................................... H : 120°
V : 100°Audio amplifier .................................................................................................1.0 W × 2Speakers ................................................................................................ 3 × 4 cm, 2 pcsTerminals
AV1 .......................................................................................... AV-IN 1, S-VIDEO-INAV2 ................................................................................................................ AV-IN 2AV OUT ......................................................................................................... AV-OUTANT ...................................................................................................................... DINH/P ........................................................................................... 3.5 mm ø jack (Rear)
OSD Language .......................English/German/Dutch/French/Italian/Spanish/SwedishPower supply.............................................................. DC 12 V, AC110-240 V, 50/60 HzWeight ........................................................................................ 1.9 kg w/o accessoriesAccessories ............................ R/C, Batteries, Wall mount parts, AC adaptor, AC cord,
........................................... AV cable for mini-jack
Design and specifications are subject to change without notice.
4
LC-10A3E
Operation Manual
Main unit (front view)
Main unit (rear view)
Remote control
BRIGHT MENU CH TV/VIDEO MAIN POWER
Power/standby indicatorA green indicator lights when the power is on and a red indicatorlights when in the standby mode (the indicator will not light whenthe power is off).
Remote sensor window(The actual location is not visible)
Top control panel
TV/VIDEO
MAIN POWER
CH (')/(")MENU
BRIGHTVolume (+)/(–)DISPLAY
MUTE
Ë The MUTE, DISPLAY, MENU, Volume (+)/(–), CH (')/("), and TV/VIDEO buttons provide the samefunctions as the buttons on the remote control.(The MENU button has a slightly different function from the remote control button.)
DC12V
AV-OUT
AV-IN2
AV-IN1
AUDIO
AUDIO
AUDIO
V
V
VS
R L
POWERINPUT
HEADPHONE
Adjust the set stand to an angle so thatthe screen is easily visible. The setstand can be opened up to 80°.
Rear terminal section
AV input 1 terminal• S-Video input• Video input• Audio R/L
AV input 2 terminal
Headphone outputterminal
DC input terminal
Antenna input terminal
AV output terminal
VOL–
TV/VIDEO
CH
VOL+
CH
8 9
0
LCDTV
1 2 3
4 5 6
7
MENU
/
MENU(POWER)
TV/VIDEO
CHANNEL SELECT
CH (')/("), Cursor control Up/Down'Selects next higher channel"Selects next lower channel
FLASHBACKReturns to previous channel
DISPLAYPress...Displays receiving channel for 10 seconds.
Channel indication reduces in size after about 10 seconds.
Press again...Removes display.
MUTEPress...Stops sound.Press again...Returns sound to previous level.
SOUND MODE SELECTORSwitching audio mode.
VOL (+)/( ), Cursor control Right/Left
5
LC-10A3E
Dimensions
(Units: mm)
Front View
Rear View
Side View
213.2
26735
43.547.5
63.5
193
2249.5
65
1
1
81.2
79.2
107.
8
123
126.
510
5.5
15.5 103
60
177
243.8
90.1
7212
.514
1414
15
88.5
30.5
6
LC-10A3E
DISASSEMBLY OF THE SET1. Remove the five lock screws (1) off the cabinet B.2. Push on the six hooks (2) of the cabinet B and open it slightly.3. Disconnect all the connectors (3) from the terminal and operation PWBs. Detach the cabinet B.4. Disconnect all the connectors (4) from the main PWB.
11
2
2
2
2
2
2
1
11
P2001
P3203
P3204
SC401
P7013
333
P701 P751
P2001
P2002
P752 P401 SC1201
SC1203
P301
4
4
44
Cabinet B
Cabinet A
(Main PWB)
7
LC-10A3E
5
7
7
6
5
8
8
8
9
9
10
5. Remove the four lock screws (5) off the main PWB.6. Peel off the one piece of tape (6) and detach the LC display unit.7. Remove the two lock screws (7) off the remote control PWB.8. Remove the four lock screws (8) off the terminal PWB.9. Remove the two lock screws (9) off the operation PWB.10.Remove the two lock screws (10) off the flexible shield.
Main PWB
LC display unit
Cabinet A
Cabinet B
LED PWB
Operation PWB
Terminal PWB
Flexible shield
LC display unit(rear view)
8
LC-10A3E
11
11
11
11
11
12
11
11
11.Undo the seven hooks (11) to release the unit frame.12.Detach the fluorescent lamp (12).
Panel holder
9
LC-10A3E
ADJUSTING PROCEDURE OF EACH SECTIONThe best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjustas follows.
1. Preparation for Adjustments(1)Use the exclusive-use AC adapter or stable DC power supply.
AC adapter: UADP-0225CEPZDC power supply: 12 ± 0.5V
2. Special mode setting procedure(1)Adjustment mode
[Procedure]• Short-circuit TP2001 to GND, and turn on the power.• Or short-circuit TP2002 to GND, and turn on the power.• Or holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the
(inspection process) [CH "] key and [VOL– ] key to change the mode to the adjustment mode.• Each adjustment item is chosen with the [MENU] key, and adjusted with the [VOL] key.
[Description]The manual adjustment or adjustment through communication with the automatic machine is performed.
(2)Inspection mode[Procedure]Holding down the [TV/VIDEO] key and [MENU] key, turn on the power.[MENU] key is pushed and made inspection mode.
[Description]• In the ordinary menu select with the [CH] key, and decide with the [VOL] key. Then select “PICTURE”, “TINT (only
NTSC)”, “COLOUR”, “BLACK LEVEL”, “SHARPNESS”, “RED-BLUE”, “GREEN” and “COLOUR SYSTEM” with the[CH] key, and decide with the [VOL] key. After that, adjust values with the [VOL] key.
• VOLUME, PICTURE, TINT (only NTSC), COLOUR, BLACK LEVEL, SHARPNESS, RED-BLUE, GREEN change asfollows.
(3)Shipping setting mode[Procedure]Holding down the [TV/VIDEO] key and [MENU] key, turn on the main power, and simultaneously press the (inspectionprocess) [CH '] key and [VOL+] key to change the mode to the shipping setting mode.
[Description]User adjustment and other values are taken as defaults.If TV is indicated as SETTING COMPLETE, setting has been completed.
3. Cancel of special modeTurn off the main unit power.
4. InitializationHere is the procedure of initializing the EEPROM and making model number and size settings.4-1. Get Pins (81) and (82) of the IC2001 (microprocessor) grounded and turn on the power.4-2. Select a model number (A1, A2H, A2U, A3E). For Model LC-10A3E select A3E.4-3. Select a size in inches (10, 12, 15, 20). For Model LC-10A3E select 10.4-4. Get Pins (81) and (82) of the IC2001 (microprocessor) back to normal.
ûMin.Û ûCenterÛ ûMax.Û
10
LC-10A3E
5. Reset of lamp errorIf the power LED remains red and the power is not turned on, or if repair has been performed, enter the adjustmentmode to reset the lamp error.For the resetting procedure, refer to " No power" in the "Trouble shooting Table" section.t remote controller:
6. Adjustments6-1. +B adjustment
Vary the “+B-ADJ” setting on Page 1 of the adjustment process so that the voltage at pin 49 of SC401 be 5.00±0.02 V.Note : Adjust precisely to 5.0 V because this level will be used as supply voltage reference.
6-2. Counter-bias adjustmentVary the “COM BIAS” setting on Page 2 of the adjustment process so that the contrast be sharpest (blacklooks most sinking). The adjustment guideline is around 114 for Model LC-10A3E.
6-3. TAMP adjustment1) Receive the colour bar signal.2) See if the "Y" reading on page 2 of the adjustment process is somewhere between BO and BA. If not, make
the "PAL TAMP" adjustment to get the "Y" reading in the range of BO thru BA.
(Adjustment process menu on-screen display on page 2)
6-4. White balance adjustmentVary the “RCUTOFF” and “BCUTOFF” settings to achieve optimum white balance.Note : For the “RCUTOFF” and “BCUTOFF” settings, keep the readings in the range of -10 to +10. If out of
this range, the user-adjustable range is reduced.
11
LC-10A3E
7. OSD Menu (for pages 1 and 2)
Page Item MIN MAX Remarks
1 +B-ADJ 0 255 160 Refer to 5-1
MODEL A3E Refer to 4-2
INCH SIZE 10 Refer to 4-3
TIMER 1
SYSTEM PAL
NTSC PWM FREQ 000 FFF 0C0
PAL PWM FREQ 000 FFF 0BD
TV GAIN OFF
ERROR NO RESET 0
PMUTE 00
2 COMBIAS 0 255 117 Refer to 5-2
PAL TAMP 0 63 27
TV H-PEAKING 0 63 27
R CUT OFF 0 7 0 Refer to 5-3 (around -5)
G CUT OFF -15 +15 0
B CUT OFF -15 +15 -1 Refer to 5-3
TAMP H 00 FF BA
TAMP L 00 FF B0
G3 -15 +15 0
B3 00 FF 00
R3 00 FF 00
G1 00 FF 00
B4 00 FF 00
Y 00 FF 00
InitialSetting
12
LC-10A3E
TROUBLE SHOOTING TABLE
No
No Power (Power LED indicator still in red)
Go to the adjustment process mode.
Move the cursor to ERROR NO RESET and click on it (to reset to zero).
Turn off the power.
Is the power turned on again?
1+B-ADJ 160MODEL A3EINCH SIZE 10TIMER 1NTSC PWM FREQ OCOPAL PWM FREQ OBDTV GAIN OFFERROR NO RESET 5PMUTE 00
Check the back light lamp, D753, D754, Q757, Q3600-2 and their peripheral parts as well as pin (42) of IC2001.
Note:This model is equipped with the lamp error detection function that detects the current flowing into the fluorescent lamp and protects the backlight lamp drive circuit.If a lamp error is detected, the microprocessor interrupts the unit and the ERROR NO RESET setting will go up.When the ERROR NO RESET setting has reached "5", the microprocessor turns and keeps off the unit's power. To resume the power, take the above procedure to clear the ERROR NO RESET setting.
13
LC-10A3E
TROUBLE SHOOTING TABLE
No
pic
ture
at
all
Yes
No
Are
inpu
ts
and
outp
uts
of IC
802
as
spec
ified
?
Che
ck a
ll th
e se
tting
s on
the
mic
ropr
oces
sor’s
adj
ust p
roce
ss m
enu.
No
pic
ture
Che
ck IC
802
and
its
perip
hera
l pa
rts.
Yes
No
Are
inpu
ts
and
outp
uts
of IC
1201
as
spec
ified
?
Che
ck
IC12
01 a
nd
its p
erip
hera
l pa
rts.
Che
ck L
CD
pa
nel v
olta
ge
and
wav
efor
m.
No
TV
an
d
VID
EO
1
ou
tpu
t Yes
No
Are
inpu
ts
and
outp
uts
of IC
402
as
spec
ified
?
Che
ck IC
402
and
its
perip
hera
l pa
rts.
NO
Is in
put a
t Pin
(7
3) o
f IC
802
as s
peci
fied?
Che
ck IC
802,
A
V1
line
and
thei
r pe
riphe
ral
part
s.
No
TV
o
utp
ut Yes
No
Are
vol
tage
s at
Pin
s (6
),
(7)
and
(9)
of
tune
r as
sp
ecifi
ed?
Che
ck th
e po
wer
line
.
Yes
No
Is o
utpu
t at
Pin
(19
) of
tu
ner
as
spec
ified
?
Che
ck th
e tu
ner
and
its
perip
hera
l pa
rts.
No
Is in
put a
t Pin
(1
) of
IC40
2 as
spe
cifie
d?
Che
ck th
e lin
e in
qu
estio
n.
Yes
Che
ck IC
402
and
its
perip
hera
l pa
rts.
Yes
No
Are
Pin
s (2
) an
d (4
) of
IC
402
at “
H”
and
“L”
resp
ectiv
ely?
Are
Pin
s (6
5)
and
(66)
of
IC20
01 a
t “H
” an
d “L
” re
spec
tivel
y?
No
VID
EO
1
ou
tpu
t
YE
S
No
Is in
put a
t Pin
(1
) of
IC40
2 as
spe
cifie
d?
Che
ck th
e lin
e in
qu
estio
n.
Yes
No
Are
Pin
s (1
) an
d (4
) of
IC
402
both
at
“L”?
No
VID
EO
2
ou
tpu
t
No
Is in
put a
t Pin
(7
4) o
f IC
802
as s
peci
fied?
Che
ck J
3404
, A
V li
ne a
nd
thei
r pe
riphe
ral
part
s.
No
S
VID
EO
o
utp
ut No
Are
inpu
ts a
t P
ins
(71)
and
(7
2) o
f IC
802
as s
peci
fied?
Che
ck
J330
1, S
Y
line,
SC
line
an
d pe
riphe
ral
part
s.
Are
Pin
s (6
5)
and
(66)
of
IC20
01 b
oth
at “
L”?
Che
ck IC
402
and
its
perip
hera
l pa
rts.
Yes
Che
ck th
e lin
e in
qu
estio
n.
Yes
Che
ck th
e lin
e in
qu
estio
n.
14
LC-10A3E
TROUBLE SHOOTING TABLE (Continued)
No
pic
ture
an
d s
ou
nd
No
co
lou
r
No
TV
co
lou
rN
o S
-VID
EO
co
lou
r
Yes
No
Do
F37
01 a
nd F
3702
fu
nctio
n?
Che
ck a
ll th
e se
tting
s on
the
mic
ropr
oces
sor’s
adj
ust p
roce
ss m
enu.
No
Are
sec
onda
ry o
utpu
ts
(+38
V, +
16V,
+9V
, +5V
, -8V
) of
T70
1 as
spe
cifie
d?
Yes
Are
the
osci
llatio
n w
avef
orm
at
T70
1’s
prim
ary
side
as
spec
ified
?
Yes
No
Dis
conn
ect F
3701
and
F
3702
. Is
the
load
sid
e sh
ort-
circ
uite
d? Yes
No
Is a
ny o
f T70
1’s
prim
ary
side
, Q
701,
Q71
0 an
d S
4701
sh
ort-
circ
uite
d?
Che
ck J
3701
, its
per
iphe
ral
part
s an
d co
nnec
tion
cabl
e.
Rep
lace
F37
01 a
nd F
3702
.
Che
ck S
4701
and
co
nnec
tion
cabl
e.
Che
ck th
e se
cond
ary-
side
lo
ad o
f T70
1.
Flu
ore
scen
t la
mp
fai
lure
Yes
No
Doe
s F
3751
func
tion?
Yes
No
Is P
in (
34)
of IC
1201
at “
H”?
Yes
No
Are
the
osci
llatio
n w
avef
orm
s at
the
prim
ary
side
of T
751
and
T75
2 as
spe
cifie
d?
Yes
Rep
lace
F37
51.
No
Is in
put a
t Pin
(71
) of
IC80
2 as
spe
cifie
d?C
heck
J33
01, S
C li
ne a
nd
perip
hera
l par
ts.
Yes
Che
ck th
e lin
e, IC
1201
and
its
per
iphe
ral p
arts
.
Che
ck Q
751,
Q75
2, T
751,
T
752,
Q75
3 an
d th
eir
perip
hera
l par
ts.
Rep
lace
the
fluor
esce
nt la
mp
and
chec
k th
e os
cilla
tion
wav
efor
m a
gain
.
No
VID
EO
co
lou
r
Che
ck a
ll th
e se
tting
s on
the
mic
ropr
oces
sor’s
adj
ust p
roce
ss m
enu.
15
LC-10A3E
TROUBLE SHOOTING TABLE (Continued)
No
so
un
d
fro
m
spea
kers Yes
No
Is P
in (
53)
of
IC20
01 a
t “L”
?
Che
ck a
ll th
e se
tting
s on
the
mic
ropr
oces
sor’s
adj
ust p
roce
ss m
enu.
No
so
un
d
No
Are
out
puts
at
Pin
s (1
) an
d (7
) of
IC90
3 as
sp
ecifi
ed? Y
es
No
Are
inpu
ts a
nd
outp
uts
of
IC30
3 as
sp
ecifi
ed? Y
es
No
Are
inpu
ts a
t P
ins
(5)
and
(8)
as w
ell a
s ou
tput
s at
Pin
s (2
) an
d (1
1), a
ll of
IC30
1, a
s sp
ecifi
ed?
Mut
ing
effe
ct is
on
. Che
ck th
e F
SM
U li
ne.
Che
ck IC
901,
IC
903
and
thei
r pe
riphe
ral
part
s.
Che
ck IC
303
and
its
perip
hera
l pa
rts.
Che
ck th
e lin
e in
que
stio
n,
IC30
3 an
d its
pe
riphe
ral
part
s.
Yes
Che
ck th
e sp
eake
rs a
nd
thei
r pe
riphe
ral
part
s.
No
so
un
d
fro
m
hea
dp
ho
ne
Yes
No
Is P
in (
55)
of
IC20
01 a
t “L”
?
Che
ck th
e he
adph
one
and
its p
erip
hera
l pa
rts.
Che
ck Q
306,
J3
404
and
thei
r pe
riphe
ral
part
s.
No
so
un
d
fro
m o
utp
ut
line
Yes
No
Is P
in (
52)
of
IC20
01 a
t “L”
?
No
Are
out
puts
at
Pin
s (1
) an
d (7
) of
IC90
2 as
sp
ecifi
ed? Y
es
Che
ck th
e lin
e in
que
stio
n.
Che
ck th
e LM
UT
E li
ne.
Che
ck IC
902
and
its
perip
hera
l pa
rts.
TV
so
un
d
failu
re
Yes
No
Is o
utpu
t at P
in
(16)
of t
uner
as
spec
ified
?
No
Is in
put a
t Pin
(6
0) o
f IC
901
as s
peci
fied?
Che
ck th
e tu
ner
and
its
perip
hera
l pa
rts.
Che
ck IC
901,
Q
3301
, Q32
04,
Q32
05 a
nd
thei
r pe
riphe
ral
part
s.
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
16
CHASSIS LAYOUT
MAIN Unit (Side-A)
MAIN Unit (Side-B)
10 11 12 13 14 15 16 17 18 19
17
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
TERMINAL Unit
OPERATION Unit (Side-A)
OPERATION Unit (Side-B)
LED Unit
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
18
BLOCK DIAGRAM
10 11 12 13 14 15 16 17 18 19
19
LC-10A3E
DESCRIPTION OF SCHEMATIC DIA-GRAM
VOLTAGE MEASUREMENT CONDITION:1. When the exclusive-use AC adapter is used, the colour
bar signal of colour bar generator for service is input toget the normal screen. When the audio is minimized,the voltage value is measured with the 20 kΩ/V tester.
WAVEFORM MEASUREMENT CONDITION:1. When the exclusive-use AC adapter is used, the colour
density, lightness and colour hue are set to the centerposition, and the signal of colour bar generator forservice is observed to get waveform.The wave form test point is indicated with the mark( ) in the wiring diagram.
INDICATION OF RESISTOR & CAPACITOR:
RESISTOR1. The unit of resistance “Ω” is omitted.
(K=kΩ=1000 Ω, M=MΩ).2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)3. All resistors are Carbon type, unless otherwise noted.
C : Solid W : CementS : Oxide Film T : SpecialN : Metal Coating
CAPACITOR1. All capacitors are mF, unless otherwise noted.
(P=pF=mmF).2. All capacitors are Ceramic type, unless otherwise
CAUTION:This circuit diagram is original one, therefore there may be aslight difference from yours.
IMPORTANT SAFETY NOTICE:PARTS MARKED WITH “ å” ( )AREIMPORTANT FOR MAINTAINING THE SAFETY OFTHE SET. BE SURE TO REPLACE THESE PARTSWITH SPECIFIED ONES FOR MAINTAINING THESAFETY AND PERFORMANCE OF THE SET.
å AND SHADED COMPONENTS=SAFETY RELATED PARTSË TERMINAL Unit
å
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
26
Ë OPERATION and LED Unit
OPERATION UNIT
LED UNIT
27
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
PRINTED WIRING BOARD ASSEMBLIES
Main Unit (Side-A)
LC-10A3E
28
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
Main Unit (Side-B)
29
LC-10A3E
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
Operation Unit (Side-A) Terminal Unit (Side-A)
LED Unit (Side-A)
LC-10A3E
30
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10
Operation Unit (Side-B) Terminal Unit (Side-B)
LED Unit (Side-B)
Ref. No. Part No. Description Code Ref. No. Part No. Description Code
31
LC-10A3E
PARTS LISTPARTS REPLACEMENT
Replacement parts which have these special safety character-istics identified in this manual: electrical components havingsuch features are identified by “å” and shaded area in theReplacement Parts Lists and schematic diagrams.The use of a substitute replacement part which does not havethe same safety characteristics as the factory recommendedreplacement parts shown in this service manual may createshock, fire or other hazards.
“ HOW TO ORDER REPLACEMENT PARTS ”
To have your order filled promptly and correctly, please furnishthe following informations.
1. MODEL NUMBER 2. REF. NO.3. PART NO. 4. DESCRIPTION5. CODE
LANGU9053CE01 J Wall Mount Parts ASå QACCB0016TAZZ J AC Cord(LC-10A3E(K)) AVå QACCK0002TAZZ J AC Cord(LC-10A3E) AM
QCNW-5685CEZZ J AV Cable for Mini-jack AYRRMCG1618CESA J Infrared R/C Unit AVTiNS-7449CEZZ J Operation Manual
å UADP-0225CEPZ J AC Adaptor
SPAKC5591CEZZ – Packing Case —SPAKF4002CEZZ – Packing Material —SPAKP1000CEZZ – Wrapping Paper —SPAKX2056CEZZ – Buffer Material —SPAKX2060CEZZ – Buffer Material —SSAKA0160CEZZ – Operation Manual —
Polyethylene BagTLABK0001TAZZ – No. Label —
PACKING PARTS(NOT REPLACEMENT ITEM)
DUNTKA646DE01OPERATION UNIT(Continued)
Ref. No. Part No. Description Code Ref. No. Part No. Description Code