820-00045: No imaged on display

I have this board that doesn't have image to the screen (no backlight or image). The owner states it had a Shorted out keyboard/trackpad and the has screen issues intermittently. I've tried a new display with the same outcome.

Here are some measurements taken so far. This will be my first no image troubleshooting on this type of board as most times it's always the display

PPBUS_S0_LCDBKLT_PWR_SW 1.2V
EDP_PANEL_PWR - 0v
PP3V3_S0 - 3.3v

Any suggestions?
 

2informaticos

Administrator
Staff member
Are you sure about USB activity?
Activity and 5V output from USB is not the same.
Can you see flashing boot pendrive?
 

2informaticos

Administrator
Staff member
Then board is stuck, no USB activity.
No reason to search for video, in such case.

Very likely bad CPU, classic problem of these boards.
You can try to reflow the entire board.
May have luck and recover data.
 
Top