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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. TROUBLE SHOOTING
5.12.RF Troubleshooting
5.12.1 General Circuits Troubleshooting
Fig 1 Troubleshooting flowchart of general circuits
General Circuits
Check
Power Circuit
1. Set HP8960 as below
9
Active Cell(GPRS)
9
62ch, 5level (TCH)
9
62ch, -60dBm (BCH)
2. Establish Spectrum Analyzer
& Oscilloscope
Check
DCXO Circuit
General function is OK.
YES
YES
Check
RF Switch Circuit
YES