820-2915 Chimes no video

[Ryanlen2]

Hey,

I have this board that had liquid damage around ISL area and wasnt turning on. Also some damage around C7555, U9500 and burnt BKL pins on LCD connector. Replaced ISL, C7555 area, LCD connector and cleaned up U9500 area. Now it turns on and chimes, but no video. Using known good LCD and cable. External video is working.

pn 2&3 of J900 - 0V /Diode - .445
pn 4 - 3.3V


U900
PIN 2&3 - 3.3V
PIN 1- .012 V / Diode - . 410

Thanks. Have a good one!

 

[aprendiz]

Diode mode on all pins from LVDS connector...

Also do a continuity test from connector to the other end of LVDS cable....

 

[dukefawks]

No video and no BKL? Probably bad soldering on the connector or connector got fucked.