8224 N/B Maintenance
8224 N/B Maintenance
146
8.15 Audio Test Error-1
No sound from speaker after audio driver is installed.
Re-test
OK?
Test
OK?
Audio Test Error
1. Check if speaker cables are
connected properly.
2. Make sure all the drivers are
installed properly.
Try another known good
speaker, CD-ROM.
Board-level
Troubleshooting
Yes
Yes
Check the following parts for cold solder or one of the following parts on
the motherboard may be defective,use an oscilloscope to check the
following signal or replace parts one at a time and test after each
replacement.
No
No
Correct it.
Correct it.
Replace
Motherboard
Parts:
U13
U525
U524
U528
J520
J521
MIC1
L70
L75
L76
L79
Signals:
+5VS
+VA
+AMPVDD
ACZ_RST#
ACZ_SYNC
ACZ_SDIN0
ACZ_BITCLK
ACZ_SDOUT
CDROM_RIGHT
CDROM_LEFT
CDROM_COMM
AMP_RIGHT
AMP_LEFT
S
SPK_ROUT-
S
SPK_LOUT-
MIC_INT
LINEIN_L
LINEIN_R
MIC1_VREFR
MIC1_VREFL
L561
L562
J519
Q517
Q515
Q27
L56
L80
L8
L568
BJ503
MiTac Secret
Confidential Document
Summary of Contents for 8224
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