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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Signals are
Normal ?
Replace
PMB6272(U401)
Yes
N
Transceiver is OK.
See next page to check
PAM Control Circuit.
Check Output Signal
(TP1, TP2)
Checking Flow
Figure 22. Transceiver Output (GMSK)
Figure 23. Transceiver Output (8PSK)
LBAND_PAM_IN (MODE: GMSK) : TP1
LBAND_PAM_IN (MODE: 8PSK) : TP1