No light on screen, fans all run high?
The computer is the Apple iMac, model 1195. I replaced a bad screen (the typical colored lines flooding the screen issue with this model) and now when I power up, all the fans, the HD, and the ODD, all run at high speed, and there is no light on the screen...totally black. This happens whether or not memory is installed, so I'm assuming it must be logic board or power related?
I have tried reconnecting everything that I disconnected during the install, and no change. Are there any troubleshooting tips or guides to help isolate the problem?