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Level 3 Repair
8-21
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8-3-1-9. Optical Track Pad Part
Optical Track Pad(OTP) does not
work
Check the OTP
connector(HDC30
1)(crack, open,
etc)
Yes
No
Yes
Navigation
function working?
Change HDC301
No
Check U304 (crack, open, etc) & Resolder
U304
Check OTP module (crack, open, etc) &
Change OTP module
Check the S/W setting
(OTP sensitivity, key auto
lock, etc)
Yes
'Ok' key function
working?
No
Check OTP module (crack, open, etc) &
Change OTP module