Side Key - LG -L25 Service Manual

3. TROUBLE SHOOTING

3. 13 Side Key

3. 13. 1 Side Key
The sequence of detecting L25 Side key is,
Side key pressed on L25 KEYPAD_SENSE_2(Volume up), KEYPAD_SENSE_0(Volume_down), goes low.
Start
Check
Down : KEYPAD_SENSE_0(VA9710) TP1
Check S/W or Main BD
Up : KEYPAD_SENSE_2(VA9712) TP2
NO
When press S/W
Is it Low ?
YES
Check the MSM 8926(U2100)
or Main BD
LGE Internal Use Only - 48 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes