Toshiba 28ZH46P, Service Manual

Page: 26 / 54

- 27 - - 26 -
SIGNAL BOARD (28ZH46P:PD1752A 32ZH46P:PD1752 C ) (U902)
BOTTOM (FOIL) SIDE
23547607
AGC
AFT
SIF
AUDIO
+
4M
OUT
4M
OUT
IF
OUT
+
GND
IF
4M
+5V
VIDEO
+
+
+
+
NC NC
++
+
AG
C
NC
AS
SCL
SD
A
NC
+5V
+32V
+
+
+
+
1
2 3 4
5
+
+
NC
GND
R-OUT
GND
L-OUT
+
+
5 13
20
10
16
6
2
9 1 21 17
20
21 17
+
+
+
+
+
+
1234
56
7
8
VM
+
GND
GND
GND
R
G
B
+9V +
+
+
+
+
+
+
S
GND
L
R
1 2
3 4
5
1
8
5
4
+
+ +
+
OUT IN
1 2
KEY
-A
KEY
-B
GND
1
2
3 4
5
IR-IN
MICR
O GND
5V
-1 MAIN GND
ON-TIMER
4
MAIN GND
MICR
O GND
3
+
+
+
+
+
+
A
UDIO
GND
1 2
Vcc
A
UDIO
NC NC
4
5
6
3
+
+
+
+
29
1
28
56
16
10
16
6
2
5
9 1
13
+9V
GND
ABLSW
1
+
+
1
2
+
+
+
40
29
20
10
+
LIVE
NEUTRAL
1
2
CAUTION
LIVE AREA
+
+
+
+
+
+
+
DS-1107A
1
11
6
+
E
C
B
+32V
GND
DG
SPOT
GND
HVcc
GND
+5V-1
RESET
GND
+8V
GND
+8V
+12V
GND
GND
SDA2
HDRV
SCL2
GND
+30V
VP
CUT
BLK
AFC
WPD
ABL
GND
B C E
+
+
E C
B
+
E C B
+
E
B
C
+
+
+
B C E
+
C258
L104
C103
C107
C265
CC05
G102
QV10
D101
CV41
R
V32
L601
C105
C257
L101
Q110
C109
R
V23
R
V26
G103
C264
C256
C250
L253
C260
C108
L103
C104
C110
H001
L250
R112
QV06
L252
R111
LV42
L102
CV40
C102
R110
L105
R113
C101
C263
P515A
C111
C106
R114
C251
CV20
C262
CV21
SW1
SW0
C659
R654
GJ81
C651
R650
D653
GJ88
P605A
Q670
C652
D650 D651
C660
D652
C657
C655
C661
R651
Q670A
C653
C658
D502
CV22
RV31
R625
GJ73
TP01
C630
CV25
R453
Q684
R681
PH02
R432
CC64
CC68
GC06
GJ77
C529
C215
R431
L512
C602
R678
R436
R679
C625
RV24
R626
C621
C628
RV47
C259
R204
C449
C685
GJ70
QV11
C605
C638
D512
C635
C684
Q424
C210
GJ78
GC02
C511
R223
R676
R237
R682
QV09
R203
R437
LC04
R230
C609
R
V44
L503
GJ72
GJ74
C517
RS25
RV21
Q423
Q501A
C560
R611
D216
C622
RV41
GJ75
QV12
X501
R452
C604
RS26
Q422
X600
C614
R457
CR14
CV24
CC65
GJ76
R
V53
C601
RC04
C603
G601
G602
L251
C634
C691
R601
D220
Q683
LC03
RV29
R
V25
R
V45
R221
L501
L511
GJ71
RV27
CR13
R612
R229
C617
R538
R539
R614
R683
GJ93
R451
C451
R236
R235
CV23
C616
CC67
R228
R454
R
V28
R456
R
V42
RV40
LC05
C430
C611
Q203
D218
C610
R455
CC66
RV30
C624
Q685
L603
Q604
P902A
CR12
RV33
RC03
R222
C620
R234
Q425
TP02
C607
D513
R
V22
C509
C530
R
V20
GND
P
A03
RA38
C252
C656
GJ94
R
V10
CA17
C688
L604
Q601A
QV04
CV06
CA83
R687
C254
CV05
L602
Q686
R
V01
CA74
CA08
R617
C680
RA30
RA36
RA32
CV01
R688
C689
RA40
RV08
D683
CV03
R668
CA07
Q251A
R609
D
A34
CA13
RA28
R624
RV09
GJ82
R
V02
R
V06
C654
P681A
R
V07
Q251
CA12
QA17
QV03
CV02
Q680
QA18
D680
C662
RA26
RV05
RA44
C253
R669
RA27
R
V03
QA02
C690
RA35
CA14
CV04
CA02
RA22
QV02
RA31
C255
P
A02A
Q687
R
V04
LV01 D684
CA11
RA15
C606
R686
P
A01A
R652
CA04
D681
CA10
C615
C618
RA24
RA47
RA25
R653
GJ90
D
A03
C681
RA23
RA39
D682
C663
CA03
RV11
D
A04
C556
C553
C558
C543
GJ61
C549
C550
50
C561
CC12
GJ62
CC61
C211
R670
P801A
Q681
R439
R801
QX01
Q510
C545
C453
R342
R534
C452
D544
X401
C563
C564
R440
Q688
DR13
C457
RV50
P821A
CC63
RC02
R446
C454
Q682
RV49
R
V43
C540
R673
C683
C546
R685
GJ85
CC60
C541
C542
T801
F801
Q202
R
V51
GJ83
R536
RC05
C559
RS24
DR12
RV48
Q340
R671
C455
BB23A
C552
LC01
R444
C554
R540
C548
CC69
RC06
L531
C557
R535
DR14
L400
C456
R438
CC02
Q510A
RC01
CC03
L401
GC04
R449
R339
R448
C450
C562
PH01
GC01
R675
GJ84
R684
R340
RS23
D545
C801
R447
D
V01
R450
C687
R224
C544
GJ86
P805A
GC03
C433
LC02
GC05
C547
CC04
C458
C459
C551
R443
C682
D520
CC62
RX02
RX01
GJ89
RC07
R
V46
CC11
CC10
R537
GJ60
R427
CA09
Q831A
QA71
CA71
CA70
Q420A
CA80
CA79
Q830A
CA78
Z897
R428
R425
R490
CA76
R426
QA11
R849
QA70
LA70
CA77
D421
Z896
XA01
DA71
D893
RA33
Q831
DA70
RA45
LA04
C832
LA73
GJ98
GJ80
C831
RA70
GJ95
CA73
Q830
LA75
CA81
BB21A
D436
LA71
RA69
Z420
R831
C422
Q421
CA82
D890
LA05
CA72
CA75
G808
QA12
LA74
LA72
R424
D422
Q420
C420
LA03
QA13
RA46
D490
GJ97
L104
C265
CC05
G102
QV10
C105
Q110
R
V23
RV
2
6
G103
C264
C250
C260
C108
C110
R112
QV06
R111
L102
CV40
C102
R110
L105
R113
C111
R114
C251
R654
GJ81
D653
GJ88
D650
D651
D652
D502
RV
3
1
R625
GJ73
C630
CV25
R453
Q684
R681
R432
CC64
CC68
GC06
GJ77
C529
C215
R431
R678
R436
R679
RV
3
2
C625
RV2 4
R626
C621
C628
R617
RV47
R204
GJ70
QV11
C638
D512
C635
Q424
GJ78
GC02
C511
R609
R676
R237
R682
QV09
R203
R437
LC04
R
V51
R230
C609
R
V44
GJ72
GJ74
C517
RS25
RV21
Q423
R611
C622
RV41
GJ75
QV12
R452
RS26
Q422
C614
R457
CC65
GJ76
R
V53
RC04
G601
G602
C634
R601
Q683
LC03
RV2 9
R
V25
RV
4
5
R221
GJ71
R612
R229
C617
R614
R683
GJ93
R451
R236
R235
C616
CC67
R228
R454
R
V28
R456
R
V42
RV40
LC05
C611
Q203
C610
R455
CC66
RV30
C624
Q685
L603
Q604
RV33
RC03
R222
C620
R234
Q425
D513
R
V22
C509
CV21
C530
RA38
C252
GJ94
R
V10
L604
QV04
CV06
CA83
R687
CV05
Q686
R
V01
CA08
RA30
RA36
RA32
R688
RA40
RV08
D683
CV03
R668
CA07
D
A34
RA33
RA28
R624
RV09
GJ82
R
V02
R
V06
RA45
R
V07
CA12
QA17
QV03
CV02
Q680
QA18
D680
RA26
RV0 5
RA44
C253
R669
RA27
R
V03
RA35
CA14
CV04
CA02
RA22
QV02
RA31
Q687
R
V04
D684
CA11
RA15
R686
R652
CA04
D681
CA10
C615
C618
RA24
RA47
RA25
R653
GJ90
D
A03
RA23
RA39
D682
CA03
RV11
DA04
C556
C553
C558
C543
GJ61
C549
C550
CC11
CC12
CC10
R537
GJ62
CC61
R670
Q681
R439
QX01
C545
R342
R534
D544
C563
C564
R440
Q688
DR13
C457
RV5 0
CC63
RC02
R446
C454
Q682
RV4 9
R
V43
C540
R673
C546
R685
GJ85
CC60
C541
C542
Q202
GJ83
RC05
C559
RS24
DR12
RV48
Q340
R671
LC01
R444
C554
R540
CC69
RC06
C557
R535
DR14
CR14
C456
R438
CC02
RC01
CC03
R449
R339
R448
CR13
R538
R539
GC01
R675
GJ84
R684
R340
RS23
D545
D
V01
R450
R224
C544
GJ86
LC02
C547
CC04
C458
C459
R443
CR12
CC62
RX02
RX01
GJ89
RC07
R
V46
GJ60
CA09
CA80
CA79
CA78
QA11
LA04
GJ98
GJ80
RA70
GJ95
CA81
RA69
CA82
LA05
QA12
LA03
QA13
RA46
GJ97
POWER