LG GW620 - Side Key Troubleshooting

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Only for training and service purposes
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4. TROUBLE SHOOTING
4.17 Side Key Troubleshooting
1)Volume Key FPCB
Volume Key consists of Volume up and Volume down.
Start
Key press
Change the Volume Side FPCB
Yes
TP1 (VA17) is High?
TP2 (VA16)&
TP3 (VA18) are Low?
No
Change the Main board
And Retest
<Main
Board_Top>
TP2 (VA18)
TP3 VA16)
TP1 (VA17)