820-3115-B Chime but no video.

CleverTech

New member
Have a 820-3115-B that came in w/ liquid damage originally. Have it up now but only chimes w/ no video (external or internal). Any help w/ this would be awesome. Thank you in advance.
 

larossmann

Administrator
Staff member
Is LCD_PWR_EN present at U9000?

Where was the liquid damage?

What voltage is present on L9004/L9008?
 

CleverTech

New member
Board went through ultrasonic prior to getting to me. Kind of hard to tell to be honest where most of the damage was at.
 

larossmann

Administrator
Staff member
Wait is this one of those LP133WX2-TLGV screens being used here? They do that until you boot into an OS.

Try an original screen like LP133WX3-TLA* or LTN133AT09
 

dukefawks

Administrator
Test all LVDS lines on diode mode at the LCD connector, positive to GND. Missing L9080 is a common problem. This is of course when you already tested a known good LCD assembly.
 
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