4. TROUBLE SHOOTING
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4.3 GSM Rx Part
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
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
START
2. Check MT6162 XO
Re download S/W & Cal
3. Check RF Signal path