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