Sony TRINITRON KV-VF21M40 Service Manual page 97

1 2 3
A
MA10
(VIDEO REC/PB AMP)
CN701
8P
HIFI CH2
1 HIFI CH2 F 1 VIDEO RF
HIFI CH2 S (PB)
2 2
3 SP CH1 F 3
SP CH1
B 4 SP CH1 S 4
5 HIFI CH1 F 5 VIDEO RF
VIDEO RF
HIFI CH1 S (REC)
6 6
(REC)
HIFI CH1 7 SP CH2 F 7
8 SP CH2 S 8
VIDEO RF
TO DRUM
(PB)
SP CH2
C
D
E
VOLTAGE
no mark:REC/PB
( ) :REC
< > :PB
F
– 119–
4 5 6
(3/3)
IC701
HA118295NT
C711 VIDEO REC/PB AMP
(1.8)
0.022
<2.2>
F:CHIP
SW7
(3.8)
<0>
C712 (0.1)
0.022
<0.6>
SW3
F:CHIP
VIDEO RF(PB) 1
C705 R702
680
0.022
(3.8)<0>
F:CHIP :CHIP
C706
27p VIDEO RF(REC)
CH:CHIP
(0)<0.6>
C701 SW4
VIDEO RF(PB)
0.022
F:CHIP
(3.8)<0>
C709 C713
(4.5)
39p 39p
<2.1>
CH:CHIP CH:CHIP
SW8
C716
0.022
F:CHIP
C707 C717
0.022 0.01
F:CHIP F:CHIP
SW9
2.1
0
SW5
R701
0.6
100
:CHIP
0
SW6
0.6
SW10
C728
0.01
F:CHIP
7 8 9 10
C727 0.01 F:CHIP
C723
R705
0.1
1.8k
25V
:CHIP
F:CHIP
C724
(3.6)
100
<4.8>
10V
VIDEO RF
C718 L703
0.01 100µH
(REC)
F:CHIP
R708
(1.9)
1k
<2.2>
:CHIP
(1.2)
C719 <2.9>
C725
(0.3) 0.1 0.1
Q701
25V 25V VIDEO RF
<1.3>
2SD601A
F:CHIP F:CHIP
BUFF
(PB)
2
(1.6) R714
0
<0.8> (0.6) R716
:CHIP
0
<2.2>
:CHIP
C721 R709 R710
3.6
0.01 3.3k 1k
F:CHIP :CHIP :CHIP
VIDEO RF(PB) SW5V
R707
(1.2)
10k C726
<2.9> :CHIP 0.01
VIDEO RF
F:CHIP
(PB)
3.2
R711
1k
3.1
:CHIP
R706 R712
22k 1k
0.3
:CHIP :CHIP
3
4
(2.6)
L704
<2.2> 100µ H
C722
C720 0.1
100 25V
10V F:CHIP
B-SS8848<HK.>-MA10-P3
11 12
CN702
4P
1 REC CUR
2 PB RF
3 RF SWP
4 GND
CHECK CN
CLOCK
DATA
COMP SYNC
RF SWP
RF ENV TO
GND MA10(2/3)
REC RF
5V
PB RF
GND
• MA10 (3/3) BOARD WAVEFORMS
1
REC
60mVp-p (H)
3
REC/PB
2.2Vp-p (H)
– 120 –
2
PB
0.36Vp-p (H)
4
PB
5.0Vp-p (H)