Main Board - Sanyo HT28745 Service Manual

MODEL HT28745 Chassis No. 28745-00

Main Board

IC652
PQ1CG3032FZ
(3.3V,1A)
R665
1/10GJ
1KC
R634
1/10GJ820C
L654
C655
C646 D655
25KZ 25EM
1000 C658
0.1LZF
LBWA
10EM
1000
LBWA
L652
14VDM
IC653
PQ1CG3032FZ
(2.5V,3A)
R654
1/10GJ
390C
R650
1/10GJ680C
L653
C648 C650 D672
25KZ 25EM RK46
C660
0.1LZF 1000 -304
LBWA
10EM
1000
LBWA
IC661
SI-3090FA LF1113
IC661P1
<9V,1A>
14VTV
C661 C663
16EM 9VTV_PF
25KZ
100 0.1LZF
LBWA
C662
D661
16EM
IC662
100
LBWA
SI-3050FA LF1113
IC662P1
<5V,1A>
K6PDA
10
6.5V
15VA 15VA
C664 C666
To P/D Board AGND 25KZ
16EM
AGND 100 0.1LZF
14VTV 14VTV
LBWA
C665 D663
(K6A) 14VTV
16EM
100
GND
LBWA
IC663P1
GND
14VDM 14VDM
14VDM
GND
GND
1
K6PDD
5
TUNING
31VTV
+B
To P/D Board
GND
5VAL 5VAL
(K4D) P-FAIL
Power
FAIL
PWR_SW
PWR_SW
1
K6PDB
12
NORMAL_SW
V_RAMP–
V_RAMP–
V_RAMP+
To P/D Board
V_RAMP+
GND HOLD_DOWN
HOLD_DOWN
(K5B)
HOLD_DOWN
PCC
IC1851
PCC
GND H_DRIVE MC74HC04AFP
C1857 R1851
H_DRIVE CJ470CL 18K
V_TIM
H_GND 1
R1857 VCC
AFC
AFC 1/10GJ 2
AFC
68KC
GND 3
ABL
R1855
ABL 4
1/10GJ
1
1 15KC 5
6
R1856
R1852 7
1/10GJ GND
3.3K
18KC
C1855
CJ180CL
H_GND
KGNDKG1 KGNDKG2
KG
— 61 —
To Front Board
(K1901)
1
6
K9FRB
Reset
5VAL
L803
C865
10EM
IC803 47
LBWA
C864
24LC08B/P
KZ0.01
LZF
:CAT24WC08P
:M24C08-BN6
L804
1 D828 C863
A0 VDD 8 D825
EM1
C1815
2 A1 7 LBWA
TEST 25KZ
0.1LZF
3
A2 SCL 6
4 VSS 5 C867 D810
SDA
KZ
0.01
LZF
EEPROM D835 D836 AVSW1
SCL_AV
SDA_AV
BLK_FULL
R676
1/10GJ
1KC OSD_R
3.3VDM
OSD_G
D659
OSD_B
C659
HJ1G
D654
VS
HS
R838
PWR_SW 100
L837
SDA_TV
R653 C832
1/10GJ CJ22CL
1.8KC
1.8VDM
L811
Regulators SCL_TV
C802
C654 CJ22CL
HJ1G
31VTV
9VTV
31VTV-PF
TA1318AFP
R657
J
9VTV
D665
L2804
5VTV
15VA
D664 R655
1/10GJ
2.2KC
R656
1/10GJ
3.3KC
IC651
SI-8050SS LF1113
21VTV-PF
16EM
R2811
1/10GZ0C
L661
6.5V
14VTV (6.5V,3V)
R652
R651
1/10GJ
1/10GJ 560C
150C
R659
1/10GZ0C
SDA_TV
L651
SCL_TV
C651 C652 D651
25KZ 25EM RK46
C653 C672
0.1LZF 1000 -304
LBWA
10EM HJ1G
1000
LBWA
AV2_V
P-FAIL
AV2_U
AV2_Y
14 5VTV
L1851
13
12
C1852
11 C1851
25KZ
16EM
10 47LBWA 0.1LZF
AV3_V
9
8 AV3_U
HS AV3_Y
C1854
CJ100CL
VS
C1853
CJ100CL
R2932
75
R2933
75
JWG3
AV_VIDEO Board
— 62 —
To Front Board
(K1902)
1
CPU
IC801
L801 M37151MA
C862 C822
L802
KZ 6.3EM
470
0.01 R3417
LZF LBWA
22 21 1/10GJ
VCC VSS
D822 100C
C821
IC802
CJ22CL
23 20
C823 FILT XOUT
C852 R3416
MN1381-Q KZ0.01 X8219
CJ220 LZF 1/10GJ
CL
1KC
24 19
HLT XIN
C818
R824
CJ22CL
C824 1K R886
D826 EM1 C825 25 18 1/10GJ
VHOLD CNVSS
LBWA KK1000 10KC
LZB R816
R826
100
SWD_YCAP 2.2K C826
26 17
CVIN ACT_OUT
R866 CJ C816
C866 1/10 120 CJ33
EM1LBWA CL
GJ1MC CL R887
27 16
RESET STATUS_IN
C827 D827 D816 1/10GJ
R827 KZ R817 10KC
R815
100 0.01 100 NORMAL_SW
LZF 1K
28 15
PULLUP NORMAL_SW
R828
1/10
GJ10KC P-FAIL
29 PFAIL 14 5VTV
AVSW1
C829 C814
R830 R829 R814
KZ0.01 KZ0.01 R843
1/10GJ 100 100 DM_CS
10KC LZF LZF 3.3K
30 13
IIC SCL3 DM_CS
D871
R831 (AV)
1/10GJ R812
DM_SIN
10KC 1K
31 IIC SDA3 12
DM_SIN
D812 R811 R885
(AV) 1/10GJ
1/10GJ
3.3KC R845 DM_SOUT
6.8KC
32 FIX/VARI 11 100
DM_SOUT
_SW R810
R833 R881
1/10GJ 3.3K 1/10GJ
R844 DM_SCLK
1.5KC 6.8KC
33 10 100
BLK_FULL DM_SCLK
R834 C833 R849 R880
C854
1/10GJ CJ56 1/10GJ 1/10GJ RC_IN
CC4CL 6.8KC
4.7KC CL 4.7KC
34 9
OSD R RCIN
R894 R835 C834 D809
C855 R809
1K CJ56 100
1/10GJ CC4CL
4.7KC CL
35 8
OSD_G ABL_IN
R895 R836 C856 C835
1K 1/10GJ CC4CL CJ56 R807
100
4.7KC CL
36 7
OSD_B AFT1
D837 C836
R806 R846
R876 CJ56
1K 1/10GJ100C 1/10GJ AVSW2
CL 4.7KC
37 6
VS AVSW2
C837 C806
R837
1/10GJ KK270 KZ0.01
KEY_IN
10KC LZB LZF
38 5
HS KEY_IN
D838 D805
R839 R805
1/10GJ 100
4.7KC
39 4
PWR_SW BPF-SW
D839 C804
R840 JW1
KZ0.01
1/10GJ
IIC SDA2 LZF
10KC 40 W-DOG 3
(NV)
C840 D840 OUT
R803 R822
R841 CJ
1/10GZ0C AMUTE J
5.6K 22CL R802
41 IIC SDA1 AMUTE 2
C841 D841 (TV) 1/10
R842
1/10GJ CJ GJ
22CL 10KC
10KC
42 IIC SCL2 IIC SCL1 1
C842 D842 (NV) (TV) C801
D801 R801
CJ CJ
22CL 22CL 1/10GJ
5.6KC
5VAL
R855
1/10GJ Q825 R851
5.6KC AJ 1/10GJ
10KC
R852
R856 47K
1/10GJ C844 Q851
D857
5.6KC AH
KK
2200 R853
D858 LZB 1/10GJ
47KC
SYNC_SEP. For Component
IC2801
5VTV
1 30 R2829
HD2-IN DAC3
C2801
1/10GJ
25KZ 10KC
0.1LZF
2 29
VD2-IN VD2-OUT
C2802
25KZ
AV3_VS
0.1LZF
3 28
HD1-IN VD1-OUT
C2803 R2828
25KZ R2827
1/10GJ
0.1LZF 100
10KC
4 27
VD1-IN NC
C2804
C2827
25KZ
0.1LZF EM1LBWA AV3_Y
5 26
A-GND SYNC1-IN
C2806
6 25
EM NC DAC1
2.2 C2825
LBWA R2807 EM1LBWA
5.6K
AV2_Y
7 AFC 24
SYNC2-IN
FILTER
8 ADDRESS 23
R2809 C2807 NC
KK0.01 SW R2824 R2822
1/10GJ LZB 1/10GZ 1/10GJ
360C 100C
0C
9 SCL 22
HVCO
X2809
10 SDA 21
NC
R2821
R2819
1/10GJ
C2810 11 20 1/10GJ
VCC NC 100C
3.9KC
100
LBWA
12 19
DAC2 HD2-OUT
C2812 C2811
16EM
25KZ
100 0.1
LBWA 13 18
LZF VD3-IN D-GND
C2813
25KZ
R2816
0.1LZF
14 17 1/10GJ
HD3-IN NC
3.9KC
C2814
R2815
25KZ AV3_HS
100
0.1LZF 15 16
CP-OUT HD1-OUT
9VTV
R2940
Q2942
1/10GJ
AH
12KC
R2942
R2944 47
C2940
47
16EM10
LBWA R2941 R2943
R2945
1/10GJ 1/10GJ
75 12KC
2.2KC
R2946 C2952
R2956
1/10GJ 16PM22LBZA 1/10GJ75C
Q2943
12KC
AH
R2948 C2954 R2958
R2950
47 16PM22LBZA 1/10GJ75C
47 C2943
R2954 16EM10
LBWA R2947
75 R2949 C2956
1/10GJ R2960
12KC 1/10GJ 16PM22LBZA 1/10GJ75C
2.2KC
C2950
R2951
25KZ
1/10GJ
Q2950 0.1 C1270
12KC R1262
AH LZF 16PM22LBZA
1/10GJ75C
C2951
16EM
R2953 100 C1273
C2945 R1265
47 LBWA 16PM22LBZA
16EM10 1/10GJ75C
LBWA
R2955 R2952 R2957
R2959 C1276
75 1/10GJ 47 R1268
1/10GJ 2.2KC 16PM22LBZA
1/10GJ75C
12KC
R2907
1/10GJ
Q2902
12KC
AH
R2909
R2906
47 R1290
47 C2902
1/10GJ Q1293
16EM10
33KC AH
R2931 LBWA R2908 R2910
75 1/10GJ 1/10GJ R1294
C1292 R1291 SWD_YDM
12KC 2.2KC 56
16EM22 1/10GJ
R2917 56C
LBWA
1/10GJ
R1296 R1295
12KC Q2904
1/10GJ 1/10GJ
AH
18KC 1KC
R2919
R2916
C2904 47
47 C1293
R1285
16EM10 16EM22
R2918 LBWA 1/10GJ Q1295
LBWA R2920 AH
1/10GJ 33KC
12KC 1/10GJ
2.2KC R1297
R1299 SWD_UDM
56
C2905 1/10GJ
C2908
R2927 25KZ 56C
R1286 R1298
1/10GJ 0.1 16EM
LZF 100 1/10GJ 1/10GJ
12KC
LBWA 18KC 1KC
Q2906 C1294
AH R1287
R2926 R2929 16EM22
C2907 LBWA 1/10GJ Q1297
47 47 AH
JWG5 33KC
16EM10 R2928
LBWA
1/10GJ R1288 R1280
R2930 SWD_VDM
12KC 1/10GJ 1/10GJ 56
2.2KC 56C
R1289 R1279
1/10GJ 1/10GJ
18KC 1KC
KF
8 K9FRA
R010
J
AMUTE
L_IN
R001
R3412 3.3K
1/10GJ
10KC
Q3410 R003
AH
1.8K
R_IN
R3415
1/10GJ
100C R3423
1/10GJ
10KC
R3411
1/10GJ
10KC Q3420 R3424
AH
100
R3426
100
ACK_FACT R3425 R3422
1/10GJ 1/10GJ
1KC 10KC
SWD_R
SWD_R
STAT_FACT
SWD_L
SWD_L IC3401
NJW1142MP D3401
C3424
IC804
C3429 C3428 C3425 KK C3243 C3419 C3418 C3417
EM1 EM1 EM1 2200 EM0.1 EM1 EM1 EM1
TC7SET08FP LBWA
LBWA LBWA LZB LBWA C3421 LBWA LBWA LBWA
C3416 C3415
C3430 16PM10 16EM
5 1 C3427 470 16EM
PM4.7 LBZA 1000
EM1 LBWA
LBZA LBWA
2 LBWA
4 3
C871
25KZ
0.1LZF
D3416
C3406
KK
0.022
LZB
C3401
PM4.7 SCL_AV
LBZA Audio Control
D3413 D3414
SDA_AV
C2914
25KZ
0.1
LZF
5VTV
R2904
1/10GJ
100C
Q2910
AH
R2902 Q2903
1/10GJ AH
100C
R2921
470
R2922
R2903 1/10GJ
470
1KC
R2901
1/10GJ
1KC
AVSW2
AVSW2 AVSW1
CPU
6PIN 29PIN
OUTPUT SIGNAL
SW1 SW2
YUV_SEL
2PIN 4PIN
IN1 L L AV2/AV3 COMPONENT
IN2 H L AV2 COMPONENT
IN3 L H AV3 COMPONENT
IC1261/IC1262/IC1263
AVSW1 SW1 SW2
C1261 C1262 IC1261
2PIN 4PIN
25KZ 16EM
NJM2534MP
0.1LZF 47LBWA
IN1 L L
5 IN3 SW2 4
C1263
IN2 H L
25KZ 6 3
VCC IN2
0.1 V
LZF
7 OUT SW1 2
IN3 L/H H
8 1
GND IN1
AVSW1
IC1262
JWG4
NJM2534MP
5 4
IN3 SW2
C1264
25KZ 6 VCC 3
0.1 IN2
U
LZF 7 2
OUT SW1
8 GND 1
IN1
R1263 AVSW1
75 IC1263
NJM2534MP
R1266
75
5 SW2 4
R1269 IN3
C1265
75 6 3
25KZ VCC IN2
0.1LZF Y
7 SW1 2
OUT
8 1
GND IN1
YUV
Selector
JP006
J
SCL_AV
SDA_AV
JWG1
JP003
1/10GZ0C
JP004
1/10GZ0C
JP009
1/10GZ0C
JP001
J
KSPG2 KSPG1
— 63 —
Audio AMP
IC001
LA42072N-E
R008
8.2K KSP
C007
25EM100 C013 1
C001
LBWA EM10
EM10
LBWA
LBWA To Speakers
C006
EM4.7 TJ4 4
LBWA
C018 C010
C015 D015
HJ0.1G C019 HJ0.1G C011
C008 25EM J HJ0.1G HJ0.1G
1000
KK1000
LBWA R017
R014 R015
DJ2.2
DJ2.2 DJ2.2 R016
DJ2.2
R007
R002 7WJ1.5K
3.3K
R004 C009
1.8K KK1000
JP008
J
K1002
14
LOUT
AUDIO
OUT
C3435
9V 13
25EM ROUT
4.7 R3434
LBWA
1/10GJ
560C
TJ5 11
L001
KJAG2
AV3_Y
9VTV KJAG1
C3489 R3435 10
16EM 1/10GJ
R3436 Y IN
470 100KC 1/10GJ
LBWA
560C
AV3_U
C3437 R3437
Q3457
25EM 1/10GJ AV3
AH 4.7 9
100KC
LBWA U IN
COMPONENT
R3457 INPUT
J
AV3_V
Q3459
AH 8
R3458
V IN
1/10GJ
1KC
6
R3459
AV2_Y
J
R3460 5
1/10GJ
Y IN
1KC
AV2_U
AV2
4
U IN
COMPONENT
INPUT
AV2_V
3
V IN
1
K5DMC
DM_VS
DM_2H
SCL_TV
SDA_TV
P-FAIL
DM_CS
DM_SCLK
DM_SIN
DM_SOUT
1
K5DMB
JWG2
SWD_CV
SWD_SY Digital
5VTV
SWD_SC
Module
SWD_UDM
SWD_HS
SWD_YDM
ATSC_DECODER
SWD_VS
SWD_VDM I/P
DM_R SCALAR
PIP(PAP)
DM_L
DM_UP
DM_YP
DM_VP
K5DMA
31VTV
9VTV
6.5V
R666
2SJ0.82
1.8VDM
3.3VDM
SDA_TV
SCL_TV
STAT_FACT
ACK_FACT MTS Decoder
C3619
25EM
R3628 C3624 4.7
10TK LBWA C3616 C3618
1/10GJ 3.3DR
3.9KC C3620 16EM 16EM
C3626 C3617
PM4.7 PM4.7 470 1000 D3617
PM4.7 LBWA
LBZA LBZA LBWA 9V
C3628 LBZA
IC3601
EM1
LBWA
CXA2104S
1 1 1 1 1
R3608
1/10 C3615
TP318
GJ1MC 25EM
4.7
LBWA
TP317 C3606
C3612
PM4.7 C3610 R3613
R3609 EM 16EM
LBZA 1/10
1/10 0.47 47 GF
LBWA
GJ LBWA 62KC
R3601 R3602
100KC
1/10GJ 1/10 C3611
GJ
10KC C3609 EM
10KC
KK 0.47
0.012
C3630 LBWA Tuner
LZB R3610
PM4.7 J
LBZA
TV_R
R3611 C3613 (Analog)
CJ390CL
TV_L 1/10GJ
6.8KC
A101
TV_V
F1FAM0160
21 19
20 18
5V
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
TPV1
R108
C103
4.7K R103
KZ
270 0.01
LZF
L101
5VTV
5V
C101
C102 D101
KK0.01 6.3EM
R106
LZB 1000
100 LBWA
R102
100
R101
100
C105
EM47
LBWA
31VTV
C106
KK
0.01
LZB
— 64 —
D899
D898
D897
D896