Trouble Shooting Of Receiver Part - LG F1200 Service Manual

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4. TROUBLE SHOOTING

4.2 Trouble Shooting of Receiver Part

Checking Flow
Setup Test Equipment
GSM900 62CH, Rx Level-60dBm
DCS1800 700CH, Rx Level-60dBm
PCS1900 660CH, Rx Level-60dBm
1. Check
RF LDO Circuit
2. Check
DCXO Circuit
3. Check
RF Chipset
Control Signal
4. Check
Mobile S/W & FEM
5. Check
Rx IQ
Re-download SW, CAL
Checking Points
- 64 -
1
2
4
4
3
5

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