(347) 552-2258 [email protected]

820-3437 light on charger, fan spin but no chime/image

A

ajdoc

Member
Cant find any liquid on this board.

Light on charger, fan spin but no chime and no image.
USB mouse got no light.
CPU warm.

PPVCC_S0_CPU = 1.74V

Not doing typical 3x ‘on/off’.
Got just ‘on/off’ and the ‘on’ all the time.

Any idea?
 
A

ajdoc

Member
Continuity OK between
Y1905/1 and U1900/3
Y1905/3 and U1900/4

Resistance
Y1905/1 and U1900/3 = 0.3 Ohm
Y1905/3 and U1900/4 = 0.2 Ohm

Correct voltage on:
U1900/2
U1900/5
U1900/13

R1905 0.1 Ohm

Client says screen just shut down and won’t turn on again.
Before I disconnected and connected battery and was working fine.
Client came back after 2 days with same issue but this time battery ‘trick’ won’t help.
 
D

dukefawks

Administrator
Could be absolutely anything.

Few last things to check PM_PCH_SYS_PWROK and PLT_RESET_L and thorough inspection for corrosion.
 
You must log in or register to reply here.
Top