5253 (LA-7092P) Not respond to power key

R EZ A

hi guys
i have a board here that just use 0.003A when pluged in
and no reaction to power key
ON/OFFBTN# = 18.25
51_ON# = 18.50
ON/OFF = 3.3V
LID_SW#= 3.3V
EC_RSMRST#= 0.62
bios flashed
kbc replaced
no change
any idea?

Dag_ZhiEst'

EC_RSMRST# should be 3.3V
+RTCVCC? Y4 oscillation?

R EZ A

Dag_ZhiEst' писал(а):

EC_RSMRST# should be 3.3V
+RTCVCC? Y4 oscillation?

+RTCVCC=3V
i have no oscilloscope to check but replacing Y4 doesn't help

Dag_ZhiEst'

You shouldn't replacing everything you measured :-)

Check ACIN.

R EZ A

Dag_ZhiEst' писал(а):

You shouldn't replace everything you measured Check ACIN.

i know but as i couldn't measure, it worse to try:D
ACIN=2.95V

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5253 (LA-7092P) Not respond to power key

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