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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 2
of Q300 high ?
YES
Is the voltage at pin 2
of D300 = VBAT ?
YES
Check the soldering
of CN103(KEY board) ?
YES
Check the connection
vibrator ?
YES
Replace vrbrator
YES
Vibrator
Working well !
NO
Check the soldering
of R339, R340
YES
NO
Check the soldering
of D300
YES
Replace D300
NO
NO
Figure 4-34.
- 94 -
NO
Resolder R339, R340
NO
Resolder D300
Resolder CN103
Reconnect vibrator
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