Sony BA-4D Service Manual page 11

C
[RGB DRIVE, CRT DRIVE]
(KV-27S42/27S46/27S66/29SL42/29SL42C/29XL42M ONLY)
C BOARD WAVEFORMS
1
168.2 Vp-p (H)
C BOARD SCHEMATIC DIAGRAM
— 39 —
857 5 C E HV boards.p65 1
CV
[RGB DRIVE, VELOCITY MOD.]
(KV-29AL42/29AL42C/29AL66/29AL66C ONLY)
2 3
140.6 Vp-p (H) 146.5 Vp-p (H)
CV BOARD SCHEMATIC DIAGRAM
C BOARD IC
VOLTAGE LIST
IC1751
pin volt
1 2.3
2 2.3
3 2.3
4 GND
5 2.3
6 198.1
7 137.3
8 138.6
9 140.8
All voltages are in V
— 40 —
E
[ENERGY START]
CV BOARD TRANSISTOR CV BOARD IC
VOLTAGE LIST VOLTAGE LIST
B C E IC1701
Q943 4.5 8.9 3.7 pin volt
Q944 2.1 8.9 1.5 1 2.3
Q945 2.1 6.0 1.5
2 2.3
Q946 133.2 67.1 134.7 3 2.3
Q947 0.9 67.1 0.3 4 GND
Q965 6.5 8.9 6.2
5 3.7
Q966 6.0 0.0 6.2 6 203.6
7 129.0
All voltages are in V
8 126.0
9 127.0
All voltages are in V
CV BOARD WAVEFORMS
1 2 3
179.7 Vp-p (H) 156.3 Vp-p (H) 167.2 Vp-p (H)
E BOARD TRANSISTOR VOLTAGE LIST
B
Q5002 0.4
E BOARD SCHEMATIC DIAGRAM
— 41 —
3/26/99, 3:45 PM
KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/29AL66C/
E BOARD (*) MARK VARIANT LIST
KV-29AL66
KV-29AL66C
KV-29AL42
KV-29AL42C
KV-29SL42
KV-27S42 KV-29SL42C
KV-27S46 KV-29XL42M
REF. NO. KV-27S66 KV-29SL46
C5020 0.0022MF 0.0047MF
C5021 # 0.0047MF
C5150 0.47MF #
F5050 6.3A/125V 6.3A/250V
R5350 4.7M 8.2M
T5050 1-431-838-11 1-426-717-11
VDR505 1-803-585-11 1-803-587-11
#: NOT MOUNTED
C E G S D
1.5 0.0 Q5001 1.5 0.1 157.6
All voltages are in V
— 42 —
29SL42/29SL42C/29SL46/29XL42M