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