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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5. TROUBLE SHOOTING
5.12 Trouble shooting of Receiver part
Figure 1. Main PCB
①
③
②
Checking Points
④
③
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 Signal
Checking Flow
Check point
③
Mobile SW & FEM
Содержание AR140B
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