MiTAC 7521 PLUS/N Manuale Utente

122

Either an error message is shown , or the driver motor continues spinning ,
while reading data is from or writing data is to hard drive.

HARD DRIVE  TEST ERROR.

Replace mother BD 
or into board-level
Troubleshooting.

Board-level

Troubleshooting for

hard drive test error.

Check the following parts for cold solder or one of the following 
parts on the mother-board may be defective, use an oscilloscope
to check the following signal or replace the parts one at a time and 
test after each replacement.

Re-boot

OK?

Correct  it
then end.

YES

NO

Check if HDD’s cable  installed to
HDD and system properly  (J516)

Re-boot

OK?

Replace the 
faulty parts
then end.

YES

NO

1. Try another known good HDD.
2. Try another known good HDD’s 

Transulation cable.

Parts:

U24, Q24
Q25, R210
RP46, RP47
RP45, RP58
R191, R211
R212, JS10
C253, C250
J516

Signals:

PDD[0~15]
PDDACK#
PDIOR#
PDIOW#
PDDREQ
PDCS[1,3]#
PDA[0:2]
PIDEACTS#
PIDE_ PU

RDDP[0~15]
RPDDACK#
RPDIOR#
RPDIOW#
RCS[1,3]P#
RDAP[0~2]