Vb Board - Sony KV-21FE13 Service Manual

VB BOARD SCHEMATIC DIAGRAM
1 | 2
CN901
5P
TO A BOARD
A
CN506
5
VM OUT
— 9V 4
E 3
NC 2
C912
+B 1
B
470 0.001
25V
—
L901
JW(5mm)
C
—
+B
C909
D
0.0047
500V
E R909
1/2W
:FPRD
—
E
(VELOCITY MODULATION)
—
F
—
G
| 3 | 4
C914
R923 0.047
47 :PT
9V
R920
820
C913
R919
100
R917
9V
100
1k
R916
1k
2.4V
Q903
2SC3311
D903
AMP
R915
1SS133
1.8V
1k
TEMP-CORR R913
Q904
R911
68
2SC3311
R914
AMP
270
R912
220
C907
Q902
C908
33
470
2SA1837
160V
10V
VM.DRIVE.1
47
67.9V
R907
135.4V
D902
2.7
MTZJ-T-77-39
:FPRD
134.9V
R908 C905 R906
560 0.047 18k
:FPRD 200V C906
:PT 0.001
| 5 | 6
Q906
6.1V
2SC3311
VM OUT
R921
10k
5.7V
R918 5.7V
5.4V
Q905
2SA1309A-QRSTA
VM OUT
5.4V
2.4V
C911
100
1.8V 10V
68 R910
180
3W
:RS
C910
0.1
Q901
200V
:PT R902
2SC4793
R905
2.7
1k VM.DRIVE.2
:FPRD
:FPRD
67.9V
0.4V
D901
MTZJ-T-77-39
0.9V
R903
R904
560
18k
:FPRD
C904
:PT 0.001 :PT
C902
C901 0.047
2.2 :PT
160V
— 34 —
KV-21FE13/ 21FE13C/ 21FM13/ 21FM13C
| 7 | 8 |
R922
22
:FPRD
CN903
3P
1 E
2 NC
3 VM
R901
47
:FPRD
C903
470
10V
BA5-910-VB
9 | 10 |