Speaker Failure - Huawei MediaPad 7 Lite S7-931w Maintenance Manual

MediaPad 7 Lite Maintenance Manual INTERNAL
Touchscreen
failure
Check whether
Check whether
the input voltage
the output voltage of the
No is 5 V and
U1300 is 3.3 V.
whether the
U1300 is normal.
Yes
Check whether the
Check whether
No output voltage of the
the output voltage of the
U9000 is normal.
C1326 is 1.8 V.
Yes
Replace the TP
(touchscreen).

9.8 Speaker Failure

The following figure shows the principles.
2012-10-08 Huawei Confidential Page 47 of 82