LG M6100 Service Manual - Page 75
Check the Coaxial Cable
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4. TROUBLE SHOOTING Checking Flow SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu START Is the voltage at pin 6 of Q102 near 0V? Yes Check the contact state of CN303 Yes Check the Coaxial Cable Yes Check the soldering of vibrator at Folder Yes Replace Vibrator. No No Check the soldering of R136. Resolder R136. Yes Replace Q102 No Re-contact CN303 No Replace Coaxial Cable No Resolder vibrator. Vibrator will work properly - 76 -
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4. TROUBLE SHOOTING
- 76 -
SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu
Is the voltage at pin 6
of Q102 near 0V?
Yes
Check the contact state
of CN303
Re-contact
CN303
Check the soldering of
vibrator at Folder
Resolder vibrator.
Vibrator will work properly
Replace Vibrator.
Check the soldering
of R136.
Resolder R136.
Replace Q102
No
No
Yes
No
Yes
No
Yes
START
Check the Coaxial Cable
Replace Coaxial Cable
No
Yes
Checking Flow