Asus M530w Service Manual page 58

華 碩 電 腦
華 碩 電 腦
PCS1900 RSSI
Description
GSM900 peak phase error
DCS1800 peak phase error
PCS1900 peak phase error
GSM900 PVT
DCS1800 PVT
TSD ■ Lv3Lv4 Repair Manual
8. Rework U901
1. Check all RLC on Rx path
2. Check voltage of U902 Pin11
3. Check voltage of U901 Pin24 & 32
4. Check voltage of U900 Pin24 & 47
5. Refer to "General GSM Rx debug"
6. Rework U902
7. Rework BPF3
8. Rework U901
Recommendatory Steps
1. Check voltage of OSC1 Pin1 & 4
2. Check frequency of OCS1 Pin3
1. Check voltage of OSC1 Pin1 & 4
2. Check frequency of OCS1 Pin3
1. Check voltage of OSC1 Pin1 & 4
2. Check frequency of OCS1 Pin3
1. Format FDI and re-calibration
2. Check RLC of low band Tx path
3. Check voltage of U902 Pin11
4. Check voltage of U904 Pin4
5. Check voltage of U901 Pin24
6. Check voltage of U900 Pin24 & 47
7. Refer to "General GSM Tx debug"
8. Rework U902
9. Rework U904
1. Format FDI and re-calibration
2. Check RLC of high band Tx path
3. Check voltage of U902 Pin11
58 ASUS Proprietary