DOWNLOAD Sharp LC-20AD5E Service Manual ↓ Size: 4.28 MB | Pages: 86 in PDF or view online for FREE

Model
LC-20AD5E
Pages
86
Size
4.28 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-20ad5e.pdf
Date
PREV: Sharp LC-20A2E (serv.man17) Service Manual / Technical Bulletin

Sharp LC-20AD5E Service Manual ▷ View online

A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC3205
KIA78D05F
5V REG
1
2
3
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
IC3201
BA00BC0WFP
F4
P.CON+1.8V_REG
1
2
4
5
6
IC3203 BD7820FP
AT1.8V_REG
1
2
4
5
6
IC3204 BD7820FP
AT1.8V_REG
1
2
4
5
6
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
D3202
EC31QS04
D3205
EC31QS04
D3203
EC31QS04
D3201
EC31QS04
L3201
22uHTSL0808
L3202
22uHSLF10145T
IC3202
AL1015
5V_SW_REG_CTL
1
2
3
4
5678
Q3202
CPH6312-TL-E
3.3V DC/DC
1
2
3
4
5
6
Q3200
2SB1132
SW
Q3205
KTA1664-Y-RTF/P
SW
C3216
68
6.3V
CD
CAUTION: DIGITAL TRANSISTOR
Q3206
KRC102SRTK
SW
B3201
HCB1608KF-181T20
Q3210
KTC3875S_Y_RTK
SW
Q3211
KTC3875S_Y_RTK
SW
Q3201
KTC3875S_Y_RTK
SW
R3228
8.2K
R3218
10
+-1%
R3217
680
+-1%
R3215
1K
+-1%
R3210
1K
R3203
0.047 1/4W
R3204
0.047 1/4W
R3244
47K
R3245
10K
R3246
10K
R3209
22K
R3223
22K
R3224
1K
R3213
1K
R3220
10
+-1%
R3219
680
+-1%
R3216
1K
+-1%
R3211
6.8K
+-1%
R3214
220
+-1%
R3212
3.9K
+-1%
R3221
220
R3222
100
R3229
1K
R3208
220
+-1%
R3207
1.5K
+-1%
R3206
1K
+-1%
R3205
22K
R3201
33K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C3229
1B
C3239
1B
C3205
0.1
B
C3225
1B
C3227
10
B
C3230
1B
C3226
1B
C3228
10
B
C3212
1F
C3211
1B
C3231
10
B
C3213
10
B
C3232
10
B
C3241
2.2
(16V 2125)
F
C3202
0.1
(25V 1608)
B
C3214
1B
C3206
27P
CH
C3207
0.01 B
C3217
0.1
B
C3237
1
(25V 1608)
B
C3203
0.1
(25V 1608)
B
C3204
0.01
B
C3219
2.2
B
C3218
2.2
B
C3240
100
10V
V-S
C3238
100
16V
V-S
C3242
10
16V
V-S
C3201
2200
16V
ZL_P
W897
W914
W909
W860
AT+1.8V_1
AT+3.3V
RXT_RST#
AT+3.3V
AT+3.3V
P.CON+5V_VCTP
AT+1.8V_1
PC_SYNC_SW
AT+1.8V_2
P.CON+5V
AT+3.3V
AT+5V
GND
SW+12V
P.CON+8V
GND
AT+1.8V_2
HDMI+3.3V
GND
GND
P.CON+3.3V
HDMI_VNREG+5V
AT+3.3V
P.CON+3.3V
HDMI+3.3V
HDMI+5V
HDMI_VNREG+5V
GND
RXT_RST#
HDMI+5V
SYS_POWER_H
PC_SYNC_SW
P.CON+3.3V
PC_SYNC_SW
P.CON+3.3V
AT+3.3V
P.CON+5V_VCTP
GND
H-6
H-5
PCBF40
CMF112
REGULATOR SCHEMATIC DIAGRAM
(MAIN PCB)
FROM/TO INTERFACE_HDMI IC
FROM/TO TUNER
FROM/TO SUB MICON/RC232C
FROM/TO SCALER
FB
GND
EXT
CS
CC
Vref/SS
V5/PWON
VIN
OUT
IN
GND
0
0
3.3
0
0
0.6
S
G
D
D
D
D
5.0
5.0
4.3
1.8
0
0
CTL
IN
GND
OUT
ADJ
3.5
3.8
0
1.9
0.75
V_IN
V_C
V_ADJ
GND
V_OUT
V_IN
V_C
V_ADJ
GND
V_OUT
0.75
1.8
2.9
2.9
0
0.74
1.8
2.9
2.9
0
3.3
3.3
2.7
5
8.2
0
13.8
3.47
3.47
3.47
3.47
14.2
1.2
1.25
4.5
13.8
13.8
14.2
0
1.25
0.9
1.6
0.9
FROM/TO JACK
FROM/TO POWER
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
CD501
P205-1324-4
CD504
4K6G-431-00K
TM101
ETR0088-010240
BT001
R6P(AR)XICI
BT002
R6P(AR)XICI
L4230
22uH
NLCV32T
NLFC3225
J4205
MSJ-2000_AG
HEADPHONE  JACK
1
2
3
4
5
6
7
H1
NC
H2
H2
E
E
H1
H1
E
J4200_1
AV6-57B03-01H
YUV-AUDIO L/R IN
1
23
4
5
6
7
8
9
H1
H2
E
J4201
AV2-13P2-07H
AUDIO_OUT_JACK
1
2
3
EE
J702
RCA/DIN-307-00A-03
AV1
1
10
11
12
23
4
56
78
9
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
Q4222
KTA1504S_Y_RTK
BUFFER
Q4223
KTA1504S_Y_RTK
BUFFER
Q4221
KTA1504S_Y_RTK
BUFFER
C4295
100
16V
V-S
B4206
FCM1608CF-600T06
B4200
FCM1608CF-600T06
B4207
FCM1608CF-600T06
B4308
W4BRH3.5X6X1.0
B4214
FCM1608CF-600T06
B4205
FCM1608CF-600T06
B4208
FCM1608CF-600T06
B4300
W4BRH3.5X6X1.0
Q4207
KTC3875S_Y_RTK
MUTE
Q4209
KTC3875S_Y_RTK
MUTE
L4210
22uHNLV25
L4209
22uHNLV25
L4208
22uHNLV25
L4231
22uHNLV25
NLCV32T
L4227
22uHNLV25
L4229
22uHNLV25
L4226
47uHNLV25
L4228
22uHNLV25
R4235
680
R4237
100K
R4238
100K
R4230
75
R4362
2.2K
R4360
2.2K
R4355
2.2K
R4306
1K
R4303
100
R4313
1K
R4307
100
R4304
1K
R4298
100
R4295
1M
R4296
1M
R4294
1M
R4292
1M
R4291
1M
R4229
10K
R4232
10K
R4221
75
R4226
75
R4302
10
R4301
10
R4200
75
R4352
75
R4353
75
R4300
2.2K
R4236
680
R4297
1M
R4351
1K
R4234
2.2K
R4356
2.2K
R4358
2.2K
R4359
2.2K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C4214
0.0022
B
C4235
0.0022
B
C4266
0.0047
B
C4263
0.0047
B
C4300
0.1
B
C4291
0.01
B
C4311
0.0022
B
C4256
0.001 B
C4262
0.001 B
C4294
0.1
B
C4312
0.0022
B
C4299
100
16V
V-S
C4296
10
25V
V-S
C4289
10
25V
V-S
C4287
10
25V
V-S
C4297
10
25V
V-S
C4293
47
16V
V-S
C4290
10
25V
V-S
C4288
10
25V
V-S
W886
W889
W875
W872
W865
W863
W869
W877
IC4205
NJM2584AM(TE1)
DTUNER/YUV SW
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
YUV_A_L
YUV_A_R
EXT_MUTE
YUV_A_L
YUV_A_R
S_JACK_Y
Y_IN
S_JACK_C
VIDEO_A_L
VIDEO_A_R
PR_IN
PB_IN
DTUNER_H
S_DET
S_JACK_C
S_JACK_Y
CVBS_IN
SW_Y/D_Y
SW_PB/D_PB
SW_PR/D_PR
AUDIO_J_OUT_L
AUDIO_J_OUT_R
S_DET
CVBS_IN
VIDEO_A_L
VIDEO_A_R
AUDIO_J_OUT_L
AUDIO_J_OUT_R
D_TUNER_V
EXT_MUTE
D_TUNER_U
D_TUNER_Y
P.CON+5V
GND
SP_OUT_R
SOUND_R
SOUND_L
SP_OUT_L
H-8
H-7
CMF112
PCBF40
0
0
0.3
17
NC
FROM/TO SCALER
10
FROM/TO SUB MICON/RS-232C
5.0
0.7
0
0.7
0
5.0
5.0
0.7
0
3.2
2.5
0
2.5
1.8
0
NC
2.6
2.6
0
3.2
3.3
5.1
3.2
0
3.3
IN1A
GND1
IN2B
V+
CTL
IN2A
GND3
IN3B
NC
OUT3
OUT2
GND2
NC
IN1B
OUT1
IN3A
0.3
0
0
HP_L
HP_R
Y
Pb
L
Pr
Y
C
L
R
V
R
8
9
13
14
15
FROM/TO JACK
FROM/TO DVD INTERFACE
FROM/TO 21PIN
FROM/TO POWER I/O
FROM/TO POWER
FROM/TO SOUND AMP
11
12
16
AV JACK / SWITCH SCHEMATIC DIAGRAM
(MAIN PCB)
ACCESSORY
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
4
3
2
1
CD302
CU148005
SPEAKER
SP301
YDP3085-10RN
SPEAKER
SP302
YDP3085-10RN
CP1000
A2502WV2-4P
1
2
3
4
IC1000
LA42052-E
SOUND AMP
1
10
11
12
13
2
3
4
5
6
7
8
9
HS301
763WAA0370
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
C1003
100
16V
V-S
C1009
4.7
50V
V-S
C1011
470
16V
TZV
C1015
470
16V
TZV
C1010
1000
25V
ZL_P
C1008
220
16V
V-S
C1004
10
25V
V-S
C1007
10
25V
V-S
C1002
1
50V
V-S
B1006
HCB1608KF-330T50
B1002
W4BRH3.5X6X1.0
B1005
W4BRH3.5X6X1.0
B1001
HCB1608KF-330T50
B1004
HCB1608KF-330T50
B1003
HCB1608KF-330T50
Q1000
KTC3875S_Y_RTK
MUTE SW.
R1006
820
R1012
2.2K
R1011
2.2K
R1027
1.8K 1/10W
R1017
2.2K 1/10W
R1014
1.8K 1/10W
R1015
2.2K 1/10W
R1000
1K
R1001
1K
R1003
6.8K
R1005
47K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C1005
0.0047
B
C1006
0.0047
B
C1024
2.2
B
C1023
2.2
B
W826
W1010
W861
W858
W853
W854
W855
W857
SP_AUDIO_OUT_R
SP_AUDIO_OUT_L
AUDIO_MUTE
SOUND_R
SOUND_L
P.CON+5V
SOUND+B
SOUND_GND
GND
SOUND_L
SOUND_R
SP_OUT_L
SP_OUT_R
SOUND AMP SCHEMATIC DIAGRAM
(MAIN PCB)
H-10
H-9
PCBF40
CMF112
NC
NC
FROM/TO SCALER
IN1
PRE GND
IN2
STBY
P.P
VCC
OUT2
PWR GND
Ripple Filter
NC
NC
OUT1
NC
6.8
2.2
0
2.2
0
9.7
14.0
14.0
0
0
14.0
GND
GND
SP OUT L
SP OUT R
20
21
22
23
(L)
8 OHM 5W
FINAL LINE S/SKD
FROM/TO AV JACK/SWITCH
FROM/TO POWER
0
0
6.5
NC
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
S
D
G
Q6001
KTK5132E
LEVEL SHIFT
S
D
G
Q6002
KTK5132E
LEVEL SHIFT
TU6002
TDTG-S156D
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
C6010
100
16V
V-S
C6003_1
10
16V
V-S
CAUTION: DIGITAL TRANSISTOR
Q6005
KRC102SRTK
SW
B6003
HCB1608KF-330T50
B6002
FCM1608KF-601T02
B6001
FCM1608KF-601T02
R6001
100
R6004
75
R6014
100
R6013
150
R6016
100
R6017
5.6K
R6012
100
R6019
5.6K
R6011
100
R6018
10K
R6022
10K
R6009
82K
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
C6009
0.1 B
C6013
47P
CH
C6012
47P
CH
C6007
220P CH
C6006
470
16V
TZV
W848
W878
W879
W844
W847
IC6001
SN74LV4053APWR
BUS_SW
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
GND
P.CON+5V
AT+5V
TU_VIDEO_OUT
SIF
DTV_AV_SW
RF_AGC
F_SCL
F_SDA
P.CON+3.3V
TSCL
TSDA
TINP
TINM
TIAGC2
H-12
H-11
PCBF40
CMF112
(MAIN PCB)
TUNER SCHEMATIC DIAGRAM
FROM/TO OFDM/TUNER
3.3
3.3
5.0
NC
NC
AS
B1
DIF2
DIF1
IF AGC
NC
AUDIO
CVBS
2ndSIF
GND
IF
SDA
SCL
GND
Vtu
AGC
B3(Vcc)
B2
2.9
0
2.0
5.0
3.3
3.3
2-COM
GND
GND
C
B
A
1Y0
1Y1
1-COM
Vcc
INH
3Y0
3-COM
3Y1
2Y0
2Y1
3.2
3.2
NC
0
NC
0
0
0
3.4
3.3
3.3
3.2
3.4
4.8
4.8
4.8
FROM/TO SCALER
FROM/TO SUB MICON/RS-232C
FROM/TO POWER
FROM/TO 21PIN
FROM/TO REGULATOR
NC
NC
NC
NC
NC
NC
NC
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