Huawei Y511-U030 - Page 66

XXXX The basic version Repair ManualV1.0
internal public
2013-09-25
华为机密，未经许可不得扩散
第 66 页，共 79 页
No sound
Check whether the normal
operating current
The receiver circuit device
without break or weld
Connectivity check each signal
END
Check the receiver and PCBA
contact is good
Re welding or replace the bad
device
Check the power supply chip,
replace or re welding
Y
Y
Y
Y
N
N
N