Only For Training And Service Purposes - LG MG370 Service Manual

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 2
of Q200 high ?
YES
Is the voltage at pin 4
of Q200 = VBAT ?
YES
Check the contact
of CN200 ?
YES
Check the connection
vibrator ?
YES
Replace vibrator
YES
Vibrator
Working well !
LGE Internal Use Only
NO
NO
Check the battery voltage
NO
Check contact problem
and clean the contact
NO
- 50 -
Resolder Q200
level
Reconnect vibrator
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Only for training and service purposes