Schematic Diagram Of Cb Board - Sony KP-XA43M31 Service Manual

(8) Schematic Diagram of CB Board

1 2 3
G1 G2 G4
A
4 10 1,2
V903
PICTURE
6
H
TUBE
7
(B)
G3 G5
K 8
B
TO FOCUS PACK
CN764
FGND
1
12
GND
C
11
NC
10 6
9 7
8
CN763
G2
1P
NC K
WHT R778
R762 33k
:MINI
560k 1/2W
1/2W :RC B
2
G2 1
C763
TO FOCUS PACK
330p
SG761 SG762
2kV
B
D
TP761
CN761
:FASTON
R763 R764
12k 12k
R761
3W 3W
100
1/2W :RS :RS
:RC
D761
1SS133
PROT
L762
150µH
C768
:EL0606
47p
E
D762
B 1SS133 1SS133
PROT
D765
C769
1SS133
47
PROT
CN762 25V
5P
WHT
:S-MICRO
138.2
Q762
F
TO CG BOARD CN732 2SC2611-15
BLUE AMP
IKB 5
8.8
GND 4 9V
8.3
9V 3
R765
GND 2
B 1.2
100
B 1 R773
100
0.7
Q763
R781
47k 2SC3311A
1
AMP C764
1.2
680p
B
2.1
R770
R772
G
100
R782 22
15k
Q764
Q765
2SA1309A
2SA1309A
GAMMA COMP
PEAK-LIMIT
H
I
J
4 5 6
HV. BLOCK
CN766
SG763
10P
R771 WHT
100 :S-MICRO
R769
1/2W
1k
G1
:RC
1/2W
TO E BOARD CN501
4 :RC
1 B/S
G1
5
2 R/S
H(+) 3 NC
4 H(+)
H(-)
5 H(-)
6 NC
7 NC
C766
R768
8 200V
330p
680k
2kV
1/2W
9 NC
B
10 GND
R766 C765
1k 0.0047 C767 L761
1/2W 500V 22 470µH
E 250V :EL0606
CN765
200V
9P
WHT
:S-MICRO
TO CG BOARD CN737
R/S
1
NC
2
H(+)
3
H(-)
4
R767
4.7k
D763 5 NC
140.1
138.2 6 NC
PROT
Q761
7 200V
2SA10910
SW
D766 8 NC
1SS133 5.6
R779
9 GND
SW 220
R774
680k
R776
47k
CB
R777
C762
1.5k
10
(BLUE AMP)
B-SS803.<GE.>-CB.
• CB BOARD WAVEFORMS
1
PAL/SECAM
3.5 Vp-p (H)
2 PAL/SECAM
117 Vp-p (H)
7 CB
BLUE AMP
— CB BOARD —
1 NTSC
3.7 Vp-p (H)
2 NTSC
125 Vp-p (H)
– 59 –
KP-XA43M31/XAM61/XAM91
RM-967