Sony KV-EF34M31 Service Manual page 64

1 2 3 4 5 6
A
RV1801
47k
D1808
GP08DPKG23
CN1801
B
6P
BLK C1809
1000
:S-MICRO
25V
TO A BOARD
9V
CN507
IC1800 R1800
1k
VD+OUT 1 R1806 R1821 LA6510
R1825 C1800
4.7k C1804 82k R1804
10 N/S DRV 3.3k 10
GND 2 JW(5)
VD-OUT 3 D1803
R1822
1SS119 Q1800
33k
15V 4 2SA1175TP
5 D701
C N/S ROT R1808
4.7k 1SS119-25TD
N/S MUTE 6
R1801 C702
1000p
5.6k
D1804
1SS119
1 2 3 4 5 6 7 8 9 10
R734
R1805 0.4 100
10k 1/2W
R1803
1.2
R1811 1/4W
R1812
Q1802 82k 33k :FPRD
IC701
2SC2785TP STV5112
PVM-AMP VIDEO AMP
R1802
1.2
D 1/4W R1810
:FPRD 33k
BIN
CN1802 D711
3P 2.1 RD11ES-T1B3
PROTECT
BLK R1823 R1824
5.6k VCC
:S-MICRO 33k
C1803 R1809
33k
10
N/S COIL- 1 GIN
NC 2 2.0
N/S COIL+ 3 RIN
D705
HSS83TD
E 2.1
PROTECT
VDD
C700
0.1
206 250V
RM
R714
0
4.7k
ROUT
156
GND C708
470p
500V
F B
RFB
156.4
GOUT
D703
153.4
1SS119
GM
C709
C
(RGB OUT) 7.2 470p
500V
B
GFB
154.2
G BOUT
D702
152.1
1SS119
BM
8.5
BFB
153
C713
470p
500V
JW709
B D704
5MM
1SS119
H
JW710
5MM
I
J
Schematic diagram Schematic diagram
DH VM2 C B4
? , boards ,
– 103 –
7 8 9 10 11 12
TO A BOARD T503 FV
CN702
1P
2300V
:TAB
SCREEN TO A BOARD
R701
MAX MIN 100k T503 SV
520 - 106 1/2W
1 G2
C701
0.0047
J701 284
2kV
SOCKET E
G4 1 0 KG KB G2
CN701
10 G2 2
1 3 3P
G1-1 0
:MINI
4
RCV 3
13 5 TO A BOARD
H1 L701
0 CN505
D700 4 22µH
RV702 6 H2
1SS119-25TD 110M 4 H
1 200V
11 7 C717
G1-3 G1-2 0 2
9 10 9 8 5 4.7 E
KR KB 250V
3 H1
8 KG 6
1 0
0 7 R730
1.8
2 CN706
B 3 3W CV KR G1 G4 HV
TAB(CONTACT)
:RS
R722
L705 1k 1 GND
33µH
1/2W
R724 CN700
L706
1k TAB(CONTACT)
1/2W 33µH
G
B
R TO A BOARD
R718 1 GND
L707 C710
1k R720 CN505
33µH 24p
1/2W JW(5MM)
CH
CN704
TAB(CONTACT)
+9V
R708
R704 1 GND
C707 1k 510
0.1 :RN
:PT
CN705
D706 D707
C711 3P
HSS83TD HSS83TD R721
JW(5MM) 47p WHT
PROTECT PROTECT CH :S-MICRO
R703 1 GND
R705 510
1k :RN 2 R NC
R700
3 B
10k
:FPRD
C704 R728 C712
R702
10 JW(5MM) 68p
100k CH
:RN 250V
R709
68k
2W
R706 R707 CN703
:RS 510
R711 R712 1k 6P
:RN
68k 68k R WHT
5
2W 2W G :S-MICRO
:RS :RS
B
R716 6 TO B4 BOARD
470 7
CN8301
1 B
2 G
D709
R717 3 R
1SS119
4.7k
4 GND
5 IK
R715
470
6 9V
C716
100
D710
R719
1SS119
4.7k
R713 R744
330k 560
D722
:RN :RN
1SS119
R723 SLICE
470
R745
C726
360
47
25V :RN
B-¥SS8700<GE.>-C
boards /
– 104 –
13 14 15 16 17 18
TO C BOARD
CN703
CN8301
:S-MICRO
A80LPD80X
B4
(RGB BUFFER)
R8305
100
V901 B
:CHIP
PICTURE
TUBE G
R8306
+9V
100
:CHIP
L8300
22µH C8301 C8302
C8300 2.2 2.2
2.2 F:CHIP F:CHIP
F:CHIP
R8301 R8303 R8307
2.2k 2.2k 2.2k
:CHIP :CHIP :CHIP
Q8301
Q8303
2SC2712
Q8305
2SC2712
BUFFER
2SC2712
Q8300 BUFFER
BUFFRE
2SA1162
BUFFER
R8304 R8308
R8302 330 330
330 :CHIP :CHIP
:CHIP
B
Q8302 Q8304
B 1
G 2SA1162 2SA1162
G 2 BUFFER BUFFER
R
R 3
GND
4
IK 5
9V 6
CN8300
6P
TO A BOARD
CN305
CN8302 CN8303
2P 2P
C BOARD WAVEFORMS
1 1 2 2
NTSC : 15.7Vp-p (H) PAL/SECAM : 135V NTSC : 13.6Vp-p (H) PAL/SECAM : 135Vp-p (H)
4 5 7
6
23.0Vp-p (H) 3.3Vp-p (H)
3.3Vp-p (H) 3.3Vp-p (H)
– 105 –
C
19 20 [RGB OUT]
– C BOARD –
6P
R8309
100
:CHIP
R
B-¥SS8700<GE.>-B4
– B4 BOARD –
3 3
NTSC : 15.0Vp-p (H) PAL/SECAM : 144Vp-p (H)
NOTE :
EY840 EY839
The circuit indicated as left contains high voltage of over
EY842
D2506
600Vp-p. Please pay attention while inspecting or reparing
EY887 it to prevent an electric shock.
D2507
EY873
28
EY844
B4
[RGB BUFFER]
– 106 –