acer 4551 (WISTRON HM42-DN) no display

R EZ A

hi guys

i have a acer 4551 which does not show me any display
lvds or vga:(

all voltages are ok
bios is programmed

what should i do?

tnx

RsM

check RTC battery.
Try to heat NorthBridge 300 degree 10 seconds by Heater FAN.

R EZ A

when it starts,it uses 1 amper

i've done my best,yet the problem is still unresolved

RsM

Where are the answers for my questions?

R EZ A

voltage of RTC battery is 1.3V

and the NorthBridge heated

RsM

need a new RTC battery - 3V

R EZ A

when i remove the RTC battery,no change is happened

it turned on,but no display

RsM

this platform won't work without RTC battery!!!
I said clear - need the new battery. Do you understand?

R EZ A

tnx

it work

acer 4551 (WISTRON HM42-DN) no display [РЕШЕНО]