5-2 No Power
Troubleshooting
5-2
Yes
No
No
Yes
No
No
No
Check the 125V,
13.0V B+ Lines
Check IC802
Pin 9 (5V)
Check/Replace
IC801, D807,D808,
D809,D810,D802
Check/Replace
IC802 (KA7630)
Check IC901
Pin 20 ; Stand-by : 0V
Normal : 5V
Check/Replace
IC901, D902
Check IC901
Pin 10(4V).
Check/Replace
IC901, (
m
-com).
Check IC201,
Pin 40 (H-out)
Check/Replace
IC201, Q401, Q402.