[SOLVED]820-2936 White Light, no Chime

[MOberdick]

History of liquid damage. Cleaned and now we have a fan spin but no video. After a few seconds the fan speed starts to get a little faster. No beeps with RAM installed but also no beeps with RAM not installed. SMC and PRAM reset performed. Nothing replaced yet because I'm not sure where to start with these symptoms. Just looking for some guidance. Thanks!

 

[jason_microsoldering]

Do you have the bass speaker plugged in?

 

[MOberdick]

Yeah I tried it with everything plugged in and also everything unplugged (besides charger and LCD) and same symptoms both ways

 

[jgraffis]

if you plug in external mouse do u have a light on the bottom of the mouse?

 

[dukefawks]

Vcore present on L7510?

 

[MOberdick]

Vcore present on L7510?

No, and also .005 in Diode mode

 

[dukefawks]

R7402 corroded?

 

[MOberdick]

Wasn't corroded but one end was disconnected from the pad. Replaced anyways and its working again. Thanks! Do you mind a brief explanation as to how you were able to find out that was the culprit?

 

[dukefawks]

Black magic, voodoo and experience.