Table of Contents
Advertisement
U3101 Temperature
Compensated Crystal
Oscillator-19.2MHz
Failure symptom:
Can't power on.
U3301 SAW Filter-
1950MHz
Failure symptom:
W2100 can't register
the network.
U3302 Power Module,
1920~1980MHz
Failure symptom:
W2100 can't register
the network.
U3501 Power module
Failure symptom:
GSM can't register the
network.
U3202 RF Switch,
824~960MHz/
1710~2170MHz
Failure symptom:
No signal, weak signal;
can't register the
network.
U3304 Duplexer,
TX:1920~1980MHz/
RX:2110~2170MHz
Failure symptom:
W2100 no signal, weak
signal; can't register the
network.
2011-05-18
U8350 Maintenance Manual Basic Version V1.0
Huawei confidential. No spreading without permission.
Internal
X301
Crystal-0.032768MHz
Failure symptom:
Can't power on.
U3402 SAW Filter
897.5MHz
Failure symptom:
W900 can't register the
network.
U3401 Power Module,
880~915MHz
Failure symptom:
W900 can't register the
network.
U3801 WCMDA/GSM
Radio Transceiver
(RTR6285)
Failure symptom:
No signal, weak signal;
can't register the
network.
U3702 SAW
Filter-2140MHz
Failure symptom:
W2100MHz no signal,
weak signal.
U3404 Duplexer,
TX:880~915MHz/
RX:925-960MHz
Failure symptom:
W900 no signal, weak
signal; can't register the
network.
Page 11 of 68
Advertisement
Table of Contents
