iMac powers on and gives startup chime. No display.
crwdns2934249:0crwdne2934249:0:
I am servicing an iMac G4 that starts up and makes the chime, but shows nothing on the display. There is also no video on an external display with the minivga - vga adapter. Also, the USB will power a mouse, but a keyboard does not work when attached. Unsure what to check next.