pretty sure the differences between the ROM 1 and 2 versions are not important.  If you decide you want to be particular, thats totally cool,    but if you are really trying to fix…

uniserver said: BLOB is definitely retired from reverse engineering and schematics! hasn't worked on a board in over two years. But I called him up and asked em very nicely a…

yes he has those Q840av Schematics!

How about Quadra 840av schematics? I have not one, not two, but THREE dead boards I'd like to get working someday. And anyone asks, yes, they've been recapped and washed. There's…

good question, i forgot what one i sent em. 

Is the Classic II the 2 ROM chip version (Rev 2), or the 4 ROM chip version (Rev 1)?

maybe its got the stiction? maybe you could try this? https://www.thinkclassic.org/viewtopic.php?id=263 other wise you can get a SCSI2SD for it.  I would say the Classic II is w…

as far as i know all he has is a PC,   He gets boards in and does the R/E and then sends them back. The Color Classic Mainboard and the Classic II main board are ones i sent em,  …

Does he have regular classic and classic II?

It's by no means a Lisa or 128k level of special to me, so I'll more than likely go for the LCD transplant route. Make the machine so much lighter, easier to move, and a tad more p…

Mmmmm at this point in time, a machine has to be fairly special to warrant me bothering with a flyback replacement. If one were to fail on either of my iMacs for instance, I dare s…

uniserver said: change the rest,   i personally do not like sockets.  if you do the ram right once its done, no need for sockets. they cause more issue then good. Click t…

Elfen said: Congrats on the fix. Click to expand... thanks

change the rest,   i personally do not like sockets.  if you do the ram right once its done, no need for sockets. they cause more issue then good.

Congrats on the fix.

Guess this one may face a CRT to LCD transplant at some point in the future. It looks like it was upgraded quite a bit, so I don't want to lose that. I just don't like fidgeting wi…

here is some update. i just got smile mac with nomal bong sound. i had replaced the 10 ram and 1 74s244. but actually 74s244 was not problem. the problem was just ram only. …

wow that is hard-core mike.   thanks for that info.

the flyback is bad.  no ifs ands or buts about it. I had changed a couple out in G3 AIOs way back in the day for this exact issue. the flybacks were made by goldstar and hungwa or…

Faster than before, or faster than another machine? I'd love to see these compared to a G5 Quad.

Little news : I have found a 'patched' version of 10.4.3, with the original kernel, and it works. I can launch Intel apps without problem, when i found a Tiger compatible version.…

From my experience the PowerMac 5500's had flyback issues also... basically it was just a matter of whether the logic board would last long enough for the flyback to fail. lol. So …

I gave up and gave the board to a friend who has professional equipment for removing things like chips. The right equipment does a nice job without the damage I would do.

was it tough getting that old filter out buddy?