Table of Contents
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CHECKING FLOW
START
Check the VRABB Voltag e(2.8V)
Check t he sold erin g
statu s Of C327
YES
Check t he sig nal o f C325, C328
Can you see a signal?
YES
Go to the speaker/
EAR_MIC Trouble
shooting
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Only for training and service purposes
O.K?
O.K?
4. TROUBLE SHOOTING
NO
Go to th e Power Trouble
shooting
NO
Solde rin g the C315
NO
Check 32.768kHz signal
of C3 41
Can you see a signal?
YES
YES
FM IC is problem .
Replace t he U304
- 75 -
NO
The CL K Buf fer is
problem.
Replace t heU306
LGE Internal Use Only
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