Panasonic WVBM990 - VIDEO MONITOR, Service Manual

Page: 9 / 14

MAIN BOARD MAIN BOARD
CRT BOARD
(Component Side View)
(Component Side View) (Pattern Side View)
(Pattern Side View)
DY
1 2 3 4 5 6
C
B
A
IC801
14.0
0
1.3
Pin 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC501
4.0
6.7
3.8
11.8
5.5
2.0
11.3
5.7
0.6
6.9
4.8
3.5
4.1
2.3
4.1
1.6
Q301
302
303
304
305
306
307
308
309
501
502
503
504
801
B
6.0
2.3
9.2
3.1
11.9
12.4
0.2
2.1
3.5
0.6
–0.1
0.6
0
17
C
12.4
9.2
5.8
0
1.0
0.4
3.1
3.5
69.8
10.5
12.3
10.5
0.6
12.4
E
5.3
1.7
9.9
3.6
12.4
12.4
3.1
3.1
3.1
0
0.1
0.6
0
17.6
< VOLTAGE >
MAIN BOARD
2. 5 ms/DIV, 1 V/DIV 3. 20
µ
s/DIV, 20 V/DIV 1. 5 ms/DIV, 5 V/DIV
< WAVEFORM >
MAIN BOARD Note: The value indicated in the schematic diagram should be read as follows:
Multiplier (0 - 5)
2nd. Significant Digit (0 - 9)
1st. Siginificant Digit (1 - 9)
<Example>
For Capacitor:
(Except Electrolytic Capacitor and Tantalum Capacitor):
820
B
82 x 10 = 82 pF
102
B
10 x 10 = 1000 pF = 0.001
µ
F
104
B
10 x 10 = 100000 pF = 0.1
µ
F
0
2
4
For Coil:
010
B
1 x 10 = 1
µ
H
8R2
B
8.2 x 10 = 8.2
µ
H
101
B
10 x 10 = 100
µ
H
0
2
4
0
1
3
For Resistor:
330
B
33 x 10 = 33
Ω
561
B
56 x 10 = 560
Ω
123
B
12 x 10 = 12k
Ω
0R00 = 0
Ω
IC501 C4
IC801 A3
Q301 C2
Q302 C2
Q303 C2
Q304 C3
Q305 C2
Q306 C2
Q307 C2
Q308 C3
Q309 C3
Q501 A5
Q502 A5
Q503 A4
Q504 B4
Q801 A3
< INDEX >
MAIN BOARD
D301 C3
D401 B4
D402 A4
D403 B3
D404 B3
D409 B4
D501 A5
D503 A6
D504 A6
D505 B3
D506 B4
D801 A2
D805 A4
IC501 B2
IC801 C2
Q301 A1
Q302 B1
Q303 B1
Q304 B1
Q305 A1
Q306 B1
Q307 B1
Q308 B1
Q309 B1
Q501 B2
Q502 B2
Q503 B2
Q504 B2
Q801 C2
< INDEX >
MAIN BOARD
D301 B1
D401 B1
D402 C1
D403 B1
D404 B2
D409 A1
D501 A2
D503 B3
D504 B3
D505 B3
D506 B2
D801 C1
D805 C1
– 6 –
CONDUCTOR VIEW