LG KS660 - Page 97

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4. TROUBLE SHOOTING
4.11. Trouble shooting of RF Block 2 (SGR) Receiver part
Figure 1. Main PCB




Checking Points


START
Check point ①
DCXO
Check point ②
PLL Control
Setup Test Equipment
Cell Power : –74dBm
EGSM CH30
DCS CH699
Re-Download S/W & CAL
Check point ④
RX I/Q Si
g
nal
Checking Flow
Check point ③
Mobile SW & FEM