Another iMac G5 with a black screen.
I have an iMac G5 17" isight that doesn't display video. The screen has a dim glow and responds to dimming, so I believe the backlight is functioning. An external monitor does work but the built-in screen remains black. Reset PRAM and SMU with no effect. First three diagnostic led's come on. Opened it up and the capacitors appear fine to me. Any ideas what the problem is?
I have a TMDS cable on order as I suspect that may be the problem with mine. I'll update to let you know how that goes.
I tried the new TMDS cable and the problem persists. I suppose my next step will be to try a new inverter unless anyone has a different suggestion.
To help narrow things, can I assume the GPU is good since the VGA port is working?
Is this a good question?