4 diagnostic leds are on, but no boot chime or picture on the screen
If I turn on the iMac, all four leds are on, but I hear no boot chime. The screen flashes a single time white and that’s it. I have connected the iMac with an external display, but nothing appears on the external screen.
I know for sure that the speakers work, because the iMac beeps if I remove the ram.
Can somebody explain me what’s wrong with the iMac or does anybody have a suggestion that might fix my iMac?
Is this a good question?
2 Comments
What happens when you shine a flashlight into the display? Do you see the faint outline of your desktop and its icons?
by Dan
@danj thank you so much, now I see it. A flashing icon when i shine my flashlight on the screen. I have to replace the inverter board I guess? I have tried two inverter boards, coincidentally both are bad I guess.
by Pieter