Thread
iMac G3 DV SE 400: Bad CRT but VGA out works
Hi guys,
I was given a Graphite DV SE 400 Mhz with video issues. And indeed: After several PRAM resets and a PMU reset and a new PRAM battery (which all changed nothing): bad colours, for example the icons + icon names on the desktop have a "pinkish tail" to the right. Sometimes, it partly seemed ok though. I think that when rebooting it will sometimes stay grey, no image at all. After putting it to sleep mode and waking it up, the (bad) image shows again, but darker. When doing this again, it becomes so dark that it's unreadable. HOWEVER when connected to a external display by VGA, the image on the display is faultless. Maybe the right corner isn't as round as the left one but I didn't try to change any settings about this, and the colors are perfect.
My question: Can the PAV board be faulty even if external video works fine?
The thing is that I also have a Graphite 500 with bad CD-drive and badly scratched case, but working. If I somehow manage to find a good Graphite "flip foot" (it's broken on both of them), I could make a good one out of those 2...
And I also have a Snow 600 which makes a buzzing sound when pressing the power button, and then, nothing.
I don't want to kill a repairable unit, and would like to save the Snow. Make 1 good Graphite or kill the 400 for spares? I have others with some broken plastic parts... But I've also been told that a complete case swap (as planned for these 2 Graphite) would be easier and most of all less dangerous than changing parts like the PAV board.
Before I go further I'd like to have an opinion about my last find's problems.
Thanks
Nicolas
edit: Last pic is when connected to the TV by VGA out.
I was given a Graphite DV SE 400 Mhz with video issues. And indeed: After several PRAM resets and a PMU reset and a new PRAM battery (which all changed nothing): bad colours, for example the icons + icon names on the desktop have a "pinkish tail" to the right. Sometimes, it partly seemed ok though. I think that when rebooting it will sometimes stay grey, no image at all. After putting it to sleep mode and waking it up, the (bad) image shows again, but darker. When doing this again, it becomes so dark that it's unreadable. HOWEVER when connected to a external display by VGA, the image on the display is faultless. Maybe the right corner isn't as round as the left one but I didn't try to change any settings about this, and the colors are perfect.
My question: Can the PAV board be faulty even if external video works fine?
The thing is that I also have a Graphite 500 with bad CD-drive and badly scratched case, but working. If I somehow manage to find a good Graphite "flip foot" (it's broken on both of them), I could make a good one out of those 2...
And I also have a Snow 600 which makes a buzzing sound when pressing the power button, and then, nothing.
I don't want to kill a repairable unit, and would like to save the Snow. Make 1 good Graphite or kill the 400 for spares? I have others with some broken plastic parts... But I've also been told that a complete case swap (as planned for these 2 Graphite) would be easier and most of all less dangerous than changing parts like the PAV board.
Before I go further I'd like to have an opinion about my last find's problems.
Thanks
Nicolas
edit: Last pic is when connected to the TV by VGA out.
They all seem to be having the start or end of the same failures. The power board/analog boards with bad caps will do just what you are experiencing. Just pull it apart and a recap would bring them all back most likely.
Yes, I think so too.
Has anybody already recapped an iMac G3 PAV board??
Has anybody already recapped an iMac G3 PAV board??
Nobody?