LG GX500 - Page 103

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4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 104/143 LGE Property
Signals are
Normal ?
Replace
PMB6272(U401/U50
)
Yes
No
T
ransceiver is OK.
See next page to check
PAM Control Circuit.
Checking Flow
Check Output Signal
(TP1 TP2)
Figure 4-52. Transceiver Output (8PSK)
Figure 4-51. Transceiver Output (GMSK)
LBAND_PAM_IN (MODE: GMSK) : TP2 LBAND_PAM_IN (MODE: 8PSK) : TP2
EGSM 30CH EGSM 30CH