(347) 552-2258 [email protected]

A1989 820-00850-A liquid contact

H

hgoncalves

Active member
Hi,

I have an A1989 820-00850-A that seams to have liquid contact, and doesn't power on.
On ampmetter i have 19.5V, but only consumes 0.36A (goes to 0.56A and them drops to 0,36A).

Because it has several points of signs of liquid and corrosion, i don't know if i should do a ultra-sound, or if i should try something else before.

Can you help?
 
Last edited:
H

hgoncalves

Active member
Hi,
I tried to figured it out by myself but i couldn't...

PPBUS_G3H 12.6 V
PPBUS_HS_CPU 12.6 V
PPDCIN_G3H 20 V
PP5V_G3S 5.1 V
PP3V3_G3H_RTC 3.3 V
PPVCC_S0_CPU 0.6 V
PP1V8_G3S 1.8 V
PP1V2_S3_CPUDDR 1.2 V
PP5V_S4SW 0 V

L7030 12.6 V
L7220 0.6 V
L7210 0.6 V
L7410 0 V
L7420 0 V
L7430 0 V
L7270 0.8 V
L8102 0.9 V
L8100 1.2 V
LB700 0 V
L7660 3.3 V
L8410 0 V
L3500 0 V

CPU gets hot
Can you help?
 
H

hgoncalves

Active member
Hi,
I've tested and it dosen't seams to have activity. The USB pen blinks one time (i think that it recognizes the power), but imediatly stops blinking.
 
Last edited:
H

hgoncalves

Active member
Hi,
I revived the firmware and now it works. However it only shows image on an external monitor. As i have no other mlcd to it, do you know, witch voltages should i get on the LCD connector?
 
You must log in or register to reply here.
Top