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Prestigio Cavaliere 141
8.9 CD-ROM Driver Test Error
Symptom:
An error message is shown when reading data from CD-ROM drive.
CD-ROM Driver
Test Error
1. Try another known good compact disk.
2. Check install for correctly.
Yes
Re-boot
OK?
No
Check the CD-ROM driver for
proper installation.
Yes
Re - Test
OK?
No
Board-level
Troubleshooting
Replace the faulty parts.
Replace
Motherboard
End
One of the following parts or signals on the motherboard
may be defective, use an oscilloscope to check the
signals or replace the parts one at a time and test after
each replacement.
PARTS:
U516
U522
J512
R197
Q33
C811
C806
C805
R728
R733
R731
R725
R729
JS504
LED BD
117
Technical Service Manual
SIGNALS:
SB_CD_RESET
C759
+5V_CDROM
IDE_IORB#
C761
SDIOR#
IDE_CHRDYB#
RP26
SDIOCHRDY#
IDE_DACKB#
RP30
SDIOW#
IDE_CSB#0
RP525
SDACK#
IDE_CSB#1
R156
SDCS1#
IDE_REQB#
R690
SDCS3#
IDE_IRQB#
R659
SDDREQ#
IDE_CBLIDB#
R644
IDE_IRQ15
IDE_SAB0
R649
SDCBLID
IDE_SAB1
R739
SDA0
IDE_SAB2
R667
SDA1
IDE_DB[0:15]
R657
SDA2
CDROM_RIGHT
R164
SDD[0:15]
CDROM_LEFT
IDE_CD)RESET#
CDROM_GND
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