Hitachi C43-FD2000 Service Manual page 49

Signal Power Supply Circuit
Cir# Pin Voltage(V) Description Cir# Pin Voltage (V)
PSD2 Pin 2 Vpp : 13.20v 200v/div 10us/div
Q903 C 19.50 STR-X6468 I901 1 324.00
B 0.00 2 0.00
E 0.00 3 19.60
Q903 C 0.00 4 0.00
B 19.50 5 0.00
E 19.50 6 0.00
Q905 C 0.00 7 1.30
B 23.00 TLP421 FB I902 1 6.30
E 19.50 2 5.20
Q932 C 0.00 3 0.00
B 0.80 4 2.70
PSD2 Pin 11 Vpp : 14.4v 200v/div
E 0.00 TLP421 PRO I903 1 6.00
Q933 C 3.80 2 6.00
B 0.00 3 0.00
E 0.00 4 19.50
Q934 C 0.00 TLP421 ACK I904 1 66.00
B 3.80 2 70.00
E 3.80 3 3.40
Q936 C 6.00 4 5.00
B 0.00 SI3050N I905 1 0.00
E 0.00 2 -
Q939 C 5.40 3 5.70
I901 Pin 1 Vpp : 536v 100v/div
B 4.60 4 5.10
E 5.40 5 6.30
Q940 C 0.00 SI3050N I906 1 0.00
B 3.00 2 3.80
E 3.00 3 5.40
Q941 C 0.00 4 5.00
B 0.75 5 6.30
E 0.00 SI8033S I907 1 11.20
2 3.70
3 0.00
4 3.40
I901 Pin 3 Vpp : 576v 100v/div
5 2.40
XA-14P PQS1 1 0.00
2 0.00
3 3.80
4 0.00
5 5.40
6 0.00
7 5.40
8 5.40
9 0.00
10 0.00
PWB Pin 1 Vpp : 36.4v 200v/div 5ms/div
11 0.00
12 3.50
13 3.50
14 3.50
XA-9P PQS2 1 6.00
2 6.00
3 0.00
4 11.00
5 11.00
6 0.00
7 0.00
PMG Pin 4 Vpp : 296.0v 100v/div 5us/div
8 6.00
9 0.00
XA-4P PQS3 1 38.10
2 38.10
3 0.00
4 0.00
XA-6P PQD2 1 0.00
2 0.00
3 0.00
4 0.00
PMG Pin 6 Vpp : 1.048kv 200v/div 5us/div
5 0.55
6 0.00
PMG Pin 7 Vpp : 19.2v 200v/div 5ms/div
PMR Pin 1 Vpp : 4.400v 200v/div 5ms/div
Power Supply Circuit
Description Cir# Pin Voltage (V) Cir# Pin Voltage(V)
STR-F66688 IP01 1 1.50 QP01 C 45.60
2 0.00 B 320.00
3 321.00 E 320.00
4 15.00 QP02 C 1.20
5 0.00 B -
TLP421 IP02 1 90.70 E 15.50
2 90.00 QP31 C 0.00
3 1.30 B 120.00
4 14.80 E 120.70
SE120N IP03 1 120.00
2 90.00
3 0.00
NJM7812FA IP04 1 27.30
2 0.00
3 12.00
PQ1CF2 IP05 1 15.00
2 7.30
3 0.00
4 1.30
5 8.20
PQ5RD083 IP06 1 7.60
2 6.30
3 0.00
4 -
XA-5P PDC1 1 220.00
2 -
3 272.00
4 0.00
5 6.30