Only For Training And Service Purposes - LG GM750 Service Manual

4. TROUBLE SHOOTING
1.TROUBLE SHOOTING
Checking Switch Block Power Source
Check ANT _ SEL 0 , 1 , 2, 3
High Level
No
1 .2 V < Voltage < 3 V Check TP 1 VBATT
Check the TP1 (VBAT)
Yes
Check the Logic
In each mode
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Only for training and service purposes