Cb Board Schematic Diagram - Sony KDP-51WS550 Service Manual

CB BOARD SCHEMATIC DIAGRAM

1 | 2 | 3
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
CB BOARD WAVEFORMS
1
2
85.7 Vp-p (H)
2.0Vp-p (H)
| 4 | 5 | 6 |
CB BOARD TRANSISTOR VOLTAGE LIST
B C E
Q7301 3.9 GND 3.0
Q7302 1.7 GND 2.4
Q7303 2.4 12.0 2.9
G D S
Q7304 7.3 12.0 6.0
All voltages are in V.
7 |
CB
[B CRT DRIVE]
COMPONENT SIDE
CB
[B CRT DRIVE]
CONDUCTOR SIDE
CB BOARD IC VOLTAGE LIST
IC7301
PIN VOLT PIN VOLT
1 2.1 8 GND
2 2.9 9 N/C
3 1.6 10 200.0
4 2.9 11 N/C
5 2.5 12 161.8
6 12.0 13 144.5
7 7.3
All voltages are in V.
— 49 —
KDP-51WS550/57WS550/65WS550
1 2 3
A
B
C
D
E
1 2 3
A
+200V
NC
GND
NC C9310
L9301
NC
R9317
HEATER(+)
HEATER(-)
C9318
D9309
C9306
12
R9339
13
B
R9303
R9320
NL9302
R9316
C9309
R9351
Q9309
R9350
D9310
R9318
C Q9304
R9307
L9302
R9319
D R9305
SG9302
R9304
1-688-773-11
NL9301
CN9308 C9301
C9317
G2
CRT GND
CN9310 CN9304 FB9301 CN9311 CN9306
E
4
4
Q9301
2 Q9305
1
OFFSET
P_MUTE
GND
B
Q9306
C9319
Q9311
1
4
CN9309