LG -E400f Service Manual page 47

Check TP1 Over 1dBm?
Check TP Over 1dBm?
Check TP3 Over 1dBm?
RTR685 Maximum output Power = 7 dBm
RTR685 minimum output Power = -80 dBm
PAM(ACPM-581) = Maximum input Power = 10 dBm
LGE Internal Use Only
Check ANT_SEL 0,1,
(High, Low, Low)
No
No
No
No
Check TP4 Over 7dBm?
Check PAM Block
Refer to 1.5.4
Yes
RF Tx Level is OK
Yes
Check TX Module
Yes
Check Duplexer
Yes
Check RTR685A
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4. TROUBLE SHOOTING
Only for training and service purposes