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13. BIOS problem
BIOS ROM
SA0-SA18 Works?
(High level > 3.0V)
Y
D0-D7 Works?
(High level
5V)
Y
Check BIOS ROM
14. HDD problem
Check HDD,HDD
FPC,J6,RP505,RP506,RP507,
RP508,RP509,RP510,RP511,
R553,Q31,R172,Q29,R186,
R202,R190,U510
N
Check signal shortage
N
Check BIOSCS#
13/30
HDD
Remove CDROM FFC
Still have error?
Y
Motor works?
Y
Y
IDE_RST# = low?
N
Check U510
N
Check FFC,
CDROM USB PCB
N
J6 41,42pin = 5V?
N
HDD_PWR# = low?
Y
Check
R246,Q32,Q30,R223,C222,
L31,C252,C229
Y
Check HDD,HDD FPC
N
Check U510
14/30
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