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I've got a ROM 01 IIgs in that fails diags with error 03011500.  From what I can decipher, it appears to be a state register failure, bit 01, address 15.  Not really sure where to go from here though.  My gut tells me CPU or maybe RAM.   Suggestions?

I have an SE/30 board in for repair that I just cant figure out.  It's been recapped, and corrosion was minimal.  It shows the attached pattern.  No chime, although I do hear 2 distinct "clicks" from the speaker at time of chime.  All address and data line and other traces have been checked...

I recently acquired a Lisa 2/5 as a project.  PSU fixed, corrosion repaired.  It has 2x 512K RAM cards in it. Getting an error 70.  I have narrowed it down to 1 card.  The bad card is in slot MEM 1, MEM 2 left empty. Enter service mode, Read memory location $186 gives 0000 0000 0000 0004. ...

Recapped an SE/30 yesterday.  It still gives a simasimac screen, but with a GOOD boot chime, and a fast 4 chime with interrupt button. RAM has been swapped, ROM has been swapped.  It had minimal cap corrosion with no PCB damage visible.  No battery corrosion.  Board has been thoroughly cleaned...

I'm currently working on a Mac Portable, backlit. Its been cleaned, recapped, fresh battery installed, w/ SCSI2SD. System 7.1 installs fine, but as soon as it booted the first time after install, I get the message: "No battery reserve power remains. The Macintosh will go to sleep within 10...