Asus M930 Service Manual Page 46

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GTC Service Manual
ASUS Proprietary 46
10.5
10.5 10.5
10.5 GSM/GPRS
GSM/GPRSGSM/GPRS
GSM/GPRS/EDGE
/EDGE/EDGE
/EDGE
Repair
RepairRepair
Repair Procedure
Procedure Procedure
Procedure
No
YES
EGG Board Level
Repair
Procedure
YES
Check U811, U810, andU800
Tx
Rx
Check relevant components on
the path
U811 (low band) should
higher than U810 (high
band)
about 1dB
No
N
o
Check U801 (SKY77513)
Restart EGG Board Level Repair
Procedure
Check
1. C826 is 3.8V
2. C802 is 2.75V and C805 is
1.8V
3.
R828 has 26MHz
Check the four Rx filter
Check range of Vapc
Low band 0.25(PL19) ~ 1.3V
(PL5)
Tx or Rx path fail
Recalibration
FEM has RTM
waveforms
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