Gsm Rx Part Troubleshooting - LG -E445 Service Manual

4.3 GSM Rx Part Troubleshooting

4.3.1 GSM850/900 Rx
* There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form
LGE Internal Use Only
START
Rx TEST SETUP
- BCH :GSM850 /EGSM for GSM900
- TCH: GSM850 / EGSM for GSM900
- Channel : 190 / 37 for GSM 900
- Sector Power : -30 dBm
1. Check
DC Power Supply circuit
2. Check MT6162 XO
3. Check RF Signal path
Re download S/W & Cal
- 78 -
4. TROUBLE SHOOTING
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes