LG GD510 - Page 87

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Only for training and service purposes
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 93/113 LGE Property
Signals are
Normal ?
Replace
PMB6272(U602)
Yes
No
Transceiver is OK.
See next page to check
PAM Control Circuit.
Checking Flow
Figure 23. Transceiver Output (8PSK)
Figure 22. Transceiver Output (GMSK)
LBAND_PAM_IN (MODE: GMSK) : TP1 LBAND_PAM_IN (MODE: 8PSK) : TP1
EGSM 30CH EGSM 30CH
Check Output Signal
(TP1, TP2)