Huawei MediaPad 7 Lite S7-931w - Page 48

MediaPad 7 Lite Maintenance Manual
INTERNAL
2012-10-08
Huawei Confidential
Page 48 of 82
Check whether the touchscreen of MediaPad 7 Lite is normal. If the touchscreen is normal,
the 5 V power supply of the speaker power amplifier (PA) is normal. In this case, rectify the
fault according to the following flowchart.
Speaker failure
Check
whether the U1700 is
short circuited.
Yes
Replace the
U1700.
No
Check
whether the resistance of the SKP
monomer is 8 ohm.
No
Replace the SPK
monomer.
Yes
Replace the SPK FPC.