Checking Bluetooth Block - LG TracFone LG840G Service Manual

4.5 Checking Bluetooth Block

Change the Main board
LGE Internal Use Only
START
TP1,TP2
Signals exist?
Yes
TP3
Is clock ok?
32.768KHz
Yes
TP4
Is clock ok?
37.4MHz
Yes
No
Change the main board
No
Change the X301
No
Change the X801
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4. TROUBLE SHOOTING
Only for training and service purposes