Hook Switch Not Working - Pantech G510 Service Manual

G510 Service Manual

6.2.5 Hook Switch not working

1.Check to see if U111 No.5 is 2.8V : CP130
2.Check to see if U111 No.1 is 0V during pressing Hook Switch : CP131
3.Check to see if U111 No.3 is around 0.15V : CP132
NO Check that R109 and R110 cold solder,broken,short to the other
PCB pattern or not
If you find out any defect, you replace it
4.Check to see if U111 No.4 is around 0V When you press Hook Switch : CP133
NO Check that U111 or R109 cold solder,broken,short to the other
PCB pattern or not
If you find out any defect, you replace it
33
PANTECH
CP129
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CP127
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CP126`
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