LG KM330 Service Manual page 57

1.1.3 Checking Flow
Check Battery
Voltage > 3.35V ?
Check key board
connector is well?
Check the Voltage of
LDOs Output @U601
3.35V ?
Check X401 output is
32.768KHz and X201,
C210 output is 26MHz ?
Check /SYSRST and
BBWAKEUP signal is
normal?
The Phone will
POWER ON
Start
NO
YES
NO
YES
NO
YES
NO
YES
YES
Charge or Change Battery
1. Re-work J1401
2. Charge key board
3. Try again
Re-work or change PMIC
(U601)
Re-work or change X401,
X201 and C210
NO
Re-work or change CPU
(U401) and PMIC(U601)
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