Hook Switch Not Working - Pantech GB310 Service Manual

GB310 Service Manual

6.2.5 Hook Switch not working

1. Check to see if Q104.1 pin is 2.4V : CP120
2. Check to see if Q104.1 pin is 0V during pressing Hook Switch : CP120
NO Check that R155 and R156 cold solder, broken, short to the other PCB pattern or not
If you find out any defect, you replace it
3. Check to see if Q104.1 pin is around 0V, when you press Hook Switch : CP120
NO Check that Q104 cold solder, broken, short to the other PCB pattern or not
If you find out any defect, you replace it
1
PANTECH
CP120