Rf Receiver Path Troubleshooting - LG KM380t Service Manual

6.13 RF Receiver path Troubleshooting

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. Set HP8960 as below
Active Cell (GPRS)
62ch, 5level (TCH)
62ch, -60dBm (BCH)
2. Establish Spectrum Analyzer
& Oscilloscope
General Circuits
Troubleshooting
YES
FEM Circuit
YES
After download S/W,
Calibrate it.
Fig 9 Troubleshooting flowchart of RF Receiver path
START
Check
- 87 -
6. Trouble shooting
LGE Internal Use Only