DOWNLOAD Sharp 76GF-64H (serv.man3) Service Manual ↓ Size: 3.72 MB | Pages: 40 in PDF or view online for FREE

Model
76GF-64H (serv.man3)
Pages
40
Size
3.72 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / for version 00
File
76gf-64h-sm3.pdf
Date
PREV: Sharp 76GF-64H (serv.man2) Service Manual

Sharp 76GF-64H (serv.man3) Service Manual ▷ View online

13
76GF-64H
1
(Q)
C1825
+
C1812
(L2)
L1603
+
C1608
3
(PU)
1
R5421
C5417
J73
C5415
Q5408
B
E
R5420
D5404
+
C1609
IC1801
15
1
2
14
C5408
(MO)
+
C5412
L1801
1
(K)
8
(H)
5
R1841
D1804
E
Q912
C
C1823
+
J327
R1820
C1811
+
(L3)
E
B
Q5407
R5425
D5405
C5414
R1836
G2
C1814
R1832
R1822
R1821
D1809
J70
(B)
1
J72
+
C1613
C1612
+
(L2)
C5413
+
R5422
R5428
R5423
5
7
6
8
9
12
11
10
4
CRT
(RT)
R1834
L1604
C5405
R5426
ESPA¥A
C1824
+
C1807
K7273BM
F7273BMN2
R1621
R1623
D5411
D5412
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
FRONT A/V  UNIT  PRINTED
       WIRING BOARDS.
CENTRAL SPEAKER  UNIT  PRINTED WIRING BOARDS.
CRT MODULE  UNIT  PRINTED WIRING BOARDS.
A
3
1
(VS)
+
C1306
C1313
C1309
R1311
R1307
R1304
R1308
IC1300
C1310
+
C1302
Q1301
R1312
C1312
C1307
1
(SB)
6
IC1302
1
C1311
R1313
(SF)
1
JF1
R1309
10
R1303
L1303
D1303
D1304
L1302
C1315
R1302
R1301
JF2
JF3
(CS)
C1304
C1314
R1315
C1316
L1301
C1317
J1
C1303
R1310
C1308
J2
R1314
+
C1305
F7285BMN1
A
3
(VS)
1
+
C1306
C1310
+
C1302
1
(SB)
6
IC1302
10
(SF)
1
K7285BM
F7285BMN1
L1303
D1303
D1304
L1302
C1315
1
(CS)
C1314
C1316
L1301
+
C1305
C1309
J77
R1622
Q1603
Q1604
(Q)
R1616
C1610
R1837
C1825
+
C1812
R1620
R5435
R5433
Q5411
L1603
R5432
Q5412
R5434
+
C1608
R1619
3
1
(PU)
R5421
K
D5403
C5417
Q5406
J73
C5415
Q5405
Q5408
B
E
R5424
R5420
D5404
C1809
+
C1609
IC1601
1
R5412
C5409
R1624
R1615
C1611
R1618
R5414
J75
R5413
D5410
K
C5410
R5419
R5418
C5408
R5417
(MO)
R5416
+
C5412
L1801
1
(K)
8
(H)
5
C1813
R1839
R1841
C1815
R1830
E
C
Q912
C1823
+
C1806
C1804
R1819
R1825
J327
R1806
C1802
R1817
R1823
R1824
C1803
R1818
R1808
Q906
Q905
Q902
R1803
Q901
R1813
Q909
R1815
R1816
Q908
C1811
+
Q904
R1807
Q907
R1812
R1814
C1820
R1811 R1810
Q903
R1809
C1821
D1805
K
E
B
Q5407
R5425
D5405
C5414
R1836
C1814
R1832
R1822
R1821
D1809
J70
C5411
(B)
C1801
K
D1810
C1822
R1802
R1804
R1840
R1801
J71
J74
+ C1613
+
R1617
D1607
K
R1805
C5413
+
R5422
R5415
R5428
R5423
4
5
6
7
8
9
10
11
12
CRT
R1834
L1604
.
C5405
R5431
Q5410
F7273BMN2
R5426
J76
C1808
R1831
C1810
R1835
R1833
C1824
+
C1807
C1805
(J)
L317
71
3
5
62
4
CN4
F7306BMN0
K7306BM
J401
L318
(SS)
(CC)
(FV)
R449
3
1
(J)
L317
CN4
R316
R317
C337
C336
F7306BMN0
J401
L318
(SS)
(CC)
(FV)
C428
C429
JF1
JF2
JF3
R449
14
76GF-64H
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
DOLBY UNIT  PRINTED WIRING BOARDS.
ESPA¥A
J35
FB1701
D1704
L1302
R1324
C1389
1
(SC)
C1322
R1323
C1310
J31
(CS)
1
+
C1371
+
C1370
+
C1374
+
C1388
C1710
J8
J6
L1702
J12
J11
J10
J9
D1705
R1721
D1708
D1701
D1703
C1703
R1702
R1709
D1706
C1704
R1722
C1702
C1701
(PW)
3
1
(CW)
1
R1701
J18
K7243BM
C1356
C1717
J47
J45
J44
C1350
+
C1333
C1304
+
C1326
C1312
+
C1359
+
IC1305
15
1
2
14
D1716
+
C1712
D1702
D1713
ESPA
¥
A
J25
C1332
L1303
XT1301
J17
L1301
C1711
+
D1710
Q1701
S
D
G
20
11
10
1 IC1303
20
10
1
IC1304
C1334
C1336
+
C1337
C1329
+
1
(ST)
1
(SR)
6
IC1302
1
10
11
20
+
C1365
D1709
R1712
C
Q1705
E
C1706
+
IC1702
D1712
D1715
D1714
52
26
1
IC1301
C1307
C1306
+
+
C1314
C1325
C1324
+
C1318
IC1701
T1701
16
10
8
1
C1714
D1711
(BUS)
12
1
C1364
L1304
J46
J1
C1363
R1309
J21
C1357
J41
F7243BMN3
.
R1704
J39
J38
C1352
+
C1360
C1366
+
+
C1379
L1701
+
C1707
C1709
+
C1708
+
J13
J51
R1329
J5
R1317
J48
C1323
+
+ C1340
D1717
R1322
R1341
C1380
+
+
C1372
C1303
ESPA¥
A
R1706
Q1703
Q1702
C1715
C1713
J35
FB1701
D1704
L1302
R1324
C1389
1
(SC)
C1322
R1323
C1321
C1310
J52
R1331
R1343
R1327
C1376
J31
Q1304
R1333
C1385
R1330
C1386
C1354
(CS)
1
+
C1371
C1373
+
C1370
C1375
+
C1374
+
C1388
R1304
F7243BMN3
J48
C1313
C1710
J8
J6
L1702
R1715
J12
J11
J10
J9
3
(PW)
R1707
D1705
R1705
R1721
D1708
D1701
D1703
C1703
R1702
R1709
D1706
C1704
R1722
C1702
C1701
(CW)
1
R1701
R1326
C1305
R1325
R1328
C1358
R1332
J18
C1356
R1720
C1717
J47
J45
J44
C1351
J37
C1350
+
C1333
J36
C1304
+
C1326
C1312
+
J34
R1302
R1320
C1359
+
C1355
R1318
IC1305
1
2
14
15
D1716
Q1707
R1718
R1717
+
R1708
D1702
10
+
D1713
C1716
J25
C1332
C1339
L1303
J16
C1382
XT1301
J17
L1301
C1711
+
R1719
R1716
Q1706
D1710
Q1701
G
D
S
IC1303
IC1304
C1330
C1387
C1334
+
C1337
C1329
+
C1328
R1313 C1331
1
4
(ST)
1
(SR)
6
IC1302
11
+
C1365
D1709
R1712
C
E
C1706
+
IC1702
D1712
D1715
R1711
R1710
D1714
R1713
R1714
C1301
C1302
R1303
C1316
52
26
1
IC1301
C1308
C1307
C1306
+
+
C1314
C1315
C1325
C1324
+
C1319
R1306
C1320
C1318
C1381
C1384 
C1377
C1369
C1368
C1335
C1338
Q1303
Q1301
R1311
R1310
R1305
Q1302
IC1701
16
10
8
1
T1701
C1714
6
4
3
1
IC1703
D1711
(BUS)
12
1
R1307 C1317
J42
C1364
L1304
J46
J1
C1327
R1312
C1363
R1314
C1361
R1309
J21
C1357
J41
J30
R1319
C1362
.
R1704
R1703
J39
J38
C1352
+
C1353
C1360
C1366
+
C1367
R1723
R1340
+
+
R1334
+
C1379
C1378
L1701
C1707
C1709
+
C1708
R1301
J13
C1383
J51
R1329
J5
R1317
R1315
K
D1304
D1305
KK
D1302
C1323
+
D1301
K
+
C1340
D1717
R1322
R1341
C1380
+
+
C1372
C1309
C1303
R1308
15
76GF-64H
DESCRIPTION OF SCHEMATIC DIAGRAM
1. The unit of resistance «ohm»is omitted
(K=1000 ohms. M= Megaohm).
2. All resistors are 1/8 watt. unless otherwise
noted.
3. All capacitors are 
µ
F, unless otherwise noted
(P= 
µµ
F).
4. The capacitor with Part No.
RC-FZ9XXXBMNJ is designed to with stand
63V.
NOTE:
SAFETY NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS
WHEN THE CHASSIS IS OPERATING.
IMPOTANT SAFETY NOTE:
PARTS MARKED WITH  «
»  (
 
                      
) ARE
IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET. BE SURE TO REPLACE THESE
PARTS WITH SPECIFIED ONES FOR
MAINTAINING THE SAFETY AND PERFORMAN-
CE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE (           )
IS DIRECTLY CONNECTED WITH AC MAINS
VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV
RECEIVER AND AC LINE TO ELIMINATE
HAZARD OF ELECTRIC SHOCK.
CAUTION
This circuit diagram is original one,
therefore there may be light difference from
yours.
215 Vp-p    50Hz
45 Vp-p 113 KHz FM
WAVEFORM MEASUREMENT CONDITION:
Colour bar genetator signal of 70 dB from RF input.
1
2
3
4
5
6
7
8
9
10
11
12
13
580V
1.3 KV   15.625KHz
4 Vp-p 15.625KHz
41 Vp-p 15.625KHz
1.8 Vp-p
50Hz
3.3V 50Hz
19V   50Hz
20.5 Vp-p  50Hz
400Hz
1.15 Vp-p
15.625KHz
400Hz
!
16
76GF-64H
1
I
H
G
F
E
D
C
B
A
2
3
4
5
6
7
Page 17
  MOTHER UNIT SCHEMATIC DIAGRAM (00 Version).
1
2
3
1
2
3
1
2
3
3
2
1
1
2
3
(SA)
VS
+3.
3V
+3
.3
V
+5
V
+8
V
+1
6V
-16V
+150V
+5
V
+5V
+5V
+3.
3V
+3.
3V
+3
.3
V
+5
V
+5
V
+5
V
+5
V
+3.
3V
+3.3V
+5
V
+
5V
+
GN1
28
5
11
12
10
9
8
7
6
5
4
3
2
1
1
2
3
1
2
RU
R2
GU
G2
BU
B2
BLU
TLTXT
HB
RS
AL
ALCLOCK
SCL
SDA
I2SIN
I2SWS
I2SCL
SCL
SDA
OE
I2SOUT
AL
PAFT
A16
A17
OPC
CAG
A19
PROT
OPC
LEDOPC
PAGC
LEDOPC
LED
AFT2
A18
CAG
AFT1
LED
PROT
GNDU
R733 47K
R712 560
FB701 LN0037
R728 180
(1/2W)
R715 47K
5W
(G)
PLGN
0207
C705
EZ0119
220uF
(385V)
R714 560K
(1/2W)
R713 560K
(1/2W)
D703
DX0555
RF2005
D704
DX0555
RF2005
D701
DX0555
RF2005
D702
DX0555
RF2005
IC702
ST62
03
IX1646
VDD
1
OSCIN
2
OSCOUT
3
NMI
4
TEST
5
RESET
6
PB7
7
PB6
8
PB5
9
PB3
10
PB1
11
PB0
12
PA3
13
PA2
14
PA1
15
VSS
16
L703
(0)
L702 (0)
D706
DX0551
R740 47K
R789 18K
R788
18K
CF701 C0121
Q709
2SC2412
D711 DX0539
BYT52M
R711 1K8
D721 C8V2
EX0550
R727 180
(1/2W)
C718 1000uF
(25V)
C719 1000uF
(25V)
FB703 LN0037
D725
DX0551
Q710 2SC2412
R758 100
R754 2R7
C1022 100nF
IC1003
X2464
5
IX1603
NC
1
S1
2
S2
3
VSS
4
SDA
5
SCL
6
WP
7
VCC
8
IC1004
X2464
5
IX1603
NC
1
S1
2
S2
3
VSS
4
SDA
5
SCL
6
WP
7
VCC
8
R1001 3K3
R1002 3K3
R1052
4K7
R1032
27K
Q1005 2SC2412
R2406
2K2
R2407
2K2
C1021 100nF
C2404 100nF
R2402
4K7
X2401 B0214
20.48MHz
R2401
470
R2408
C707 100uF
(16V)
R751 1K
R790
18K
R791
18K
R763 100
(1/2W) XZ0224
Q711 BC547
TX0106
C710 47nF
400V FZ0156
T702 BTW34
VHDBT34F
D2401 EX0539
3V
D730 DX0551
FB702 LN0037
POR701 P0001
D720
DX0587
MR826
L701
F0108
(PW)
N
CM0672
(CW)
G
N
0241
R792 6K8
R755 390
R1037
4K7
R1036
4K7
IC708 FX0111
Q712 2SC2412
D728 C4V7
EX0544
R1055
47K
C1019 47pF
Q701
TX0198
S5F10N80
C711 330pF
2KV
KZ0036CE
J62
3.3uH
(DF)
R739
47K
R1035
4K7
C737 1uF
(16V)
R1020 3K3
D1003 DX0606
BAS85
R2410 100
R2411 100
R2412 100
C1025 15nF
C1024 15nF
C1023 15nF
R716 .27
1W
(R
C)
G
N
0341
ST
G
N
0341
F701
C728 100nF
C706 22uF
(16V)
FB1002 LN0037
C1017 100nF
(HB)
R767 10K
R738 47K
R737 180K
R777
47
D729 47V
EX0568
R708 1K
R1059 100
R1058
100
R1019 3K3
J39
3.3uH
(DF)
R2409
(0)
(VS)
GN0
34
1
C704 KZ0165
3.3nF 250V
R770 270
XZ0229 (1/2W)
R771 470K
(1W)
D732 15V
EX0556
D733
DX0551
R774 470K
(TQ)
R775 470K
(TQ)
R736 470K
R735 470K
Q715
2SK2715
TX0215
D707 DX0502
1N4005
D708 DX0502
1N4005
D710 EX0545
5V1
LP1001
R721 RSH
D731 DX0502
1N4005
D734 DX0502
1N4005
R703 RSH
(SW1)
GN0
34
1
(SW2)
GN0
34
1
(AA)
CM
0672FC
C702 47nF
FZ0173
C701
FZ0070
100nF (250V)
R769
820
C703 KZ0165
3.3nF 250V
C746 FZ0070
100nF (250V)
D718
DX0589
MBR3100RL
D719
DX0589
MBR3100RL
D1005 EX0545
5V1
IC703
FX010
6
M
O
C8106
5
1
2
4
Q1003 2SC2412
T70
1
RTRNZ05
78BM
19
8
7
3
4
Q714 2SA1037
R776 82K
C1027 470uF
(10V)
R1029
4K7
IC701 PST529
.
2
.
1
.
3
R1018
100
X1002 17.734MHz
B0200
R1017
3K3
R1004
3K3
R1050
220
R1026
220
R1033
10K
R1022
100
R1023 220
D1004 EX0545
5V1
C733 10nF
IC704
FX01
06
M
O
C8106
5
1
2
4
C730 10nF
IC1001
ST10R27
2
IX1686
B
P5.13
1
P5.14 AFT1
2
P5.15 AFT2
3
VSS
4
XTAL1
5
XTAL2
6
VDD
7
3.0
8
3.1
9
3.2 MICRO OUT
10
3.3 LED OPC
11
3.4 AGC OUT
12
3.5 ABL
13
3.6 LEDST
14
3.7 OPC IN
15
3.8 AV LINK
16
3.9 CAG
17
3.10 M3CLK
18
3.11 M3LDA
19
3.12 I2CEN
20
A19
26
VSS
27
VDD
28
A20
29
A21
30
A22
31
A23
32
RD
33
WR/WRL
34
READY
35
ALE
36
EA
37
VDD
38
VSS
39
P5.12
100
P5.11
99
P5.10
98
P7.3 PAFT
97
P7.2 SDA2
96
P7.1 PROT
95
P7.0 SCL1
94
P2.11 SDA1
93
P2.10 AVLINK
92
P2.9 IR
91
P2.8
90
P6.7
89
P6.6
88
P6.5
87
3.13 SERV DATA
21
P3.15
22
A16
23
A17
24
A18
25
C724 220uF
(16V)
R1048 820
R1030
4K7
C1034 10pF
R787 47K
R1028
1K
R1041
4K7
C1020 68pF
C2403 100nF
C2401 22pF
C2402
22pF
C1001 470uF
(6.3V)
Q708 2SC2412
D724 C2V7
EX0538
OPC
G
N
0341
C725 4.7nF
(HB)
R1031
4K7
C1032
47uF
(10V)
Q1002 2SC2412
Q717 2SC2412
C739 220uF
(16V)
C732 10nF
C1002 100nF
C731 10nF
1
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