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MX8550
Check the conductive gasket whether it is well-positioned
on the gasket whether it is well-positioned. Are there any
Check the signal at R 129, 130, 131. Is there any
LG Electronics Inc.
Checking Flow #1
Checking Flow #1
Start
: Make sure that the trouble is about mechanical thing at first.
YES
Check the double adhesive tape
wrinkles on double adhesive tape?
YES
Check the voltage of C 138
whether it is 2.6V.
YES
pulse when you press touch key ?
YES
Replace U106
NO
Touch key will work properly
Replace conductive gasket
NO
Replace double adhesive
tape
YES
2
NO
3
NO
- 130/148
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