Read Sharp LC-20SD4E (serv.man5) Service Manual 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
IC6406
TSH73CD
AUDIO OPEAMP
1
10
11
12
13
14
2
3
4
5
6
7
8
9
C6465
10
16V
V-S
C6464
10
16V
V-S
IC6401
BA7810HFP
REG+3.3V
1
2
3
4
5
6
IC6403
BD7820FP
DH
REG+1.8V
1
2
4
5
6
IC6404
BD7820FP
DH
REG+3.3V
1
2
4
5
6
IC6405
BD7820FP
DH
REG+1.8V
1
2
4
5
6
CP6403
125622428K3
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
3
4
5
6
7
8
9
C6442
47
16V
V-S
C6406
1000
6.3V
TZV
C6468
330
6.3V
TZV
C6417
330
6.3V
TZV
C6472
100
6.3V
TZV
C6436
100
6.3V
TZV
C6443
100
6.3V
TZV
C6403
100
16V
TZV
C6460
100
6.3V
TZV
D6401
EC31QS04
R6433
24
R6431
470
R6438
24
R6446
470
R6450
560
+-1%
R6449
68
R6448
1K
+-1%
R6452
1K
+-1%
R6454
10
R6453
680
+-1%
R6451
4.7K
R6425
4.7K
R6403
330
+-1%
R6401
330
+-1%
R6447
470
R6426
5.1K
+-1%
R6427
2.4K
+-1%
R6434
24
R6432
470
R6441
24
R6429
150
+-1%
R6430
150
+-1%
R6428
180
+-1%
R6458
75
R6457
560
+-1%
R6456
2.2K
+-1%
R6455
4.7K
R6462
10
R6461
680
+-1%
R6460
1K
+-1%
R6445
10
R6459
4.7K
C6450
0.0033
B
C6461
0.0033
B
C6444
0.1
B
C6415
0.1
B
C6411
0.1
B
C6422
0.1
B
C6463
10
C
C6445
10
C
C6413
0.1
B
C6471
0.1
B
C6420
0.1
B
C6405
47P
CH
C6402
10P CH
C6401
47P
CH
C6462
0.0033
B
C6440
0.1
B
C6451
0.0033
B
C6453
10P CH
C6457
82P
CH
C6448
82P
CH
C6454
10P CH
C6458
82P
CH
C6449
82P
CH
C6452
13P CH
C6456
68P
CH
C6447
68P
CH
C6469
10
C
C6424
0.1
B
C6426
0.1
B
C6437
10
C
C6438
0.1
B
C6441
0.1
B
C6470
10
C
C6439
0.1
B
C6455
0.1
B
C6446
10
C
C6459
10
C
C6466
0.1
B
L6406
2.2uH
NLV25
NLV25
L6401
10uH
NLV25
NLV25
L6409
4.7uH
NLV25
NLV25
L6410
4.7uH
NLV25
NLV25
L6408
8.2uH
NLV25
NLV25
L6405
2.2uH NLV25
L6407
2.2uH
NLV25
NLV25
B6405FCM1608KF-102T02
B6406FCM1608KF-102T02
B6402
FCM1608KF-102T02
B6401
FCM1608KF-102T02
B6411
FCM1608KF-102T02
B6407
FCM1608KF-102T02
B6408
FCM1608KF-102T02
B6409
FCM1608KF-102T02
B6410
FCM1608KF-102T02
W816
W818
W801
W817
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
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
GND
P3V3
P5V
AT+32V
T3V3D
T3V3A
P3V3
P5V
AT+32V
T3V3D
T3V3A
P1V8
T1V8D
T1V8A
T1V8X
T1V8A
T1V8X
P3V3
P5V
P1V8
RIGHTM
P5V
P1V8
RIGHTM
GND
LEFTM
P3V3
TVTX
TVRX
TVRX
P9V
WAKEUP
P5V
ASPECT
SPDIF
GND
SPDIF
GND
P3V3
P3V3
P5V
P1V8
GND
RSTIN
GND
GND
P3V3
GND
LEFTP
MUTE
VBGFIL
RIGHTP
CVBS
YG
UB
VR
H-36
H-35
FROM/TO STEREO
(CP901)
AOUTR
AOUTL
AGND
AGND
CVBSOUT
MUTE
TVTX
TVRX
GND
V
GND
GND
POWER CTL
RESET
3.18
4
0
3.3
1.26
EN
Vin
GND
Vadj
Vout
3.18
0
1.8
3.25
V_ADJ
V_OUT
V_IN
V_C
GND
1.25
D+5V
D+5V
DGND
DGND
AGND
AT+3.8V
+9V
SPDIF
ASPECT
U/C S-VIDEO
Y/Y S-VIDEO
AT+3.8V
AT+3.8V
AT+32V
PCBDH0
CEF196
CEF196
5
6
4
FROM/TO ASIC2
-
+
-
+
-
+
S2
S
S3
2.3
2.3
8.9
8.9
0.3
0.3
4.0
4.0
0.3
0.3
0
1.2
3.9
1.3
8
9
7
0
V_ADJ
V_OUT
V_IN
V_C
GND
1.25
4.9
3.8
3.3
0
1.8
V_ADJ
V_OUT
V_IN
V_C
GND
1.25
3.3
4.8
POWER I/O SCHEMATIC DIAGRAM
(DIGITAL PCB)
FROM/TO OFDM/TUNER
FROM/TO COMMON INTERFACE
FROM/TO ASIC
FROM/TO ASIC
FROM/TO FLASH/SDRAM
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