PG-1400 Service Manual
6.2.5 Hook Switch not working
1. Check to see if Q2.1 pin is 2.4V : CP120
2. Check to see if Q2.1 pin is 0V during pressing Hook Switch : CP120
3. Check to see if U2.3 pin is around 0V, when you press Hook Switch : CP120
NO
Æ
Check that U405 cold solder, broken, short to the other PCB pattern or not
If you find out any defect, you replace it
CP120
31
PANTECH
