Hi.
I've been all over the internet trying to understand the FBT workarounds for an old Rev A imac. I must admit I'm now a little confused. I think the problem with the computer is a bad FBT. When I press the power button, I get an amber light, chime, spin up and then a pop and it shuts down. When I connect an external apple monitor to it, it boots right up. Here's the kink-when I connect a VGA monitor through an adapter (I've tried two different adapters and three different monitors), the light stays amber and no chime. Finally, when I connect the internal CRT and boot, wait for the chime, and then disconnect the cable and connect the external monitor with adapter, all is well. I want to remove the motherboard and power supply from the case and just make a new case with an external monitor. But, I can't do that if I need the internal CRT to get the thing to boot. Any suggestions on what this might be? Reset PRAM? Bad PRAM battery?No hope at all? The power button seems to remain amber the whole time. Should it turn green or some other color at some point?
Thanks in advance!!
KC
I've been all over the internet trying to understand the FBT workarounds for an old Rev A imac. I must admit I'm now a little confused. I think the problem with the computer is a bad FBT. When I press the power button, I get an amber light, chime, spin up and then a pop and it shuts down. When I connect an external apple monitor to it, it boots right up. Here's the kink-when I connect a VGA monitor through an adapter (I've tried two different adapters and three different monitors), the light stays amber and no chime. Finally, when I connect the internal CRT and boot, wait for the chime, and then disconnect the cable and connect the external monitor with adapter, all is well. I want to remove the motherboard and power supply from the case and just make a new case with an external monitor. But, I can't do that if I need the internal CRT to get the thing to boot. Any suggestions on what this might be? Reset PRAM? Bad PRAM battery?No hope at all? The power button seems to remain amber the whole time. Should it turn green or some other color at some point?
Thanks in advance!!
KC