MiTAC 8355 service manual CD-ROM Driver Test Error

8355 N/B MAINTENANCE

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.

Board-level

Troubleshooting

One of the following parts or signals on the motherboard may be defective, use an oscilloscope to check the signals or replace

Re-boot	Yes
		Replace the faulty parts.
OK?
No

Check the CD-ROM driver for proper installation.

Yes

Re - Test	End
OK?
No

Replace

Motherboard

the parts one at a time and test after each replacement.

PARTS:		SIGNALS:
U20	R617	+5V_CD
D27	R626	PCIRST#
R276	RP13	ALL_PWROK_5V
R282	RP11	CDROM_SDCS1#
JL512	RP554	CDROM_SDCS3#
U510	R618	CDROM_SDD[0:15]
Q533	J530	CDROM_SDA2
Q534	J15	CDROM_SDDACK#
R827		CDROM_SDIOW#
R826		CDROM_IRQ15
R610		CDROM_SDA0
R615		CDROM_SDIOR#
C654		CDROM_SDA1
C659		CDROM_SDRDY
		CDROM_RST#
		CDROM_LED#

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