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5253 (LA-7092P) Not respond to power key
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R EZ A [ 07 фев 2022, 18:44 ]
Заголовок сообщения:  5253 (LA-7092P) Not respond to power key
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' [ 07 фев 2022, 18:53 ]
Заголовок сообщения:  Re: 5253 (LA-7092P) Not respond to power key
EC_RSMRST# should be 3.3V
+RTCVCC? Y4 oscillation?
R EZ A [ 09 фев 2022, 19:37 ]
Заголовок сообщения:  Re: 5253 (LA-7092P) Not respond to power key
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' [ 10 фев 2022, 10:22 ]
Заголовок сообщения:  Re: 5253 (LA-7092P) Not respond to power key
You shouldn't replacing everything you measured :-) Check ACIN.
R EZ A [ 12 фев 2022, 19:45 ]
Заголовок сообщения:  Re: 5253 (LA-7092P) Not respond to power key
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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