Mac Classic - will it ever run again!!

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Tomswork
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Re: Mac Classic - will it ever run again!!

Post by Tomswork » Thu Sep 03, 2020 6:55 am

@rubber_jonnie

Any signs of happy mac beep

:girldance:

Tom

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rubber_jonnie
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Re: Mac Classic - will it ever run again!!

Post by rubber_jonnie » Thu Sep 03, 2020 9:05 am

Tomswork wrote:
Thu Sep 03, 2020 6:55 am
@rubber_jonnie

Any signs of happy mac beep

:girldance:

Tom
Sadly not I'm afraid :( I've just not had the time.

The CPU has power, and using a spare one, it no longer gets ridiculously hot, and neither does the ROM. I have good power at all pins on the power plug. Continuity on the new CPU socket looks fine too, and no shorts between pins. Also, the /halt and /reset lines are high, which is a good sign.

No beep though and actually no display either, so next up I will check the solder connections for the wiring harness on the analog board, make sure all the moving around hasn't done anything to them. I need to find out more about how it should work, at the moment I don't even see the tube light up :(
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

Tomswork
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Re: Mac Classic - will it ever run again!!

Post by Tomswork » Thu Sep 03, 2020 3:46 pm

Hmmm no tube glow is almost always a solder problem on the connector of the analog board. And again the capacitors could have leaked. No beep could be anything.

Tom
@rubber_jonnie

stephen_usher
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Re: Mac Classic - will it ever run again!!

Post by stephen_usher » Thu Sep 03, 2020 6:20 pm

You did plug the speaker in, didn't you? I often forget on the SE/30. ;-)
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.

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rubber_jonnie
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Re: Mac Classic - will it ever run again!!

Post by rubber_jonnie » Thu Sep 03, 2020 11:19 pm

stephen_usher wrote:
Thu Sep 03, 2020 6:20 pm
You did plug the speaker in, didn't you? I often forget on the SE/30. ;-)
Yep, I nearly forgot at first, but did plug it in.
Collector of old Atari things:
800XL + Ultimate 1MB, 2x 1010 cassette, 1050 + Happy mod, 65XE (128k +APE Warp) & XC12, SIO2SD, 2600jr, 7800 and Lynx II
Atari 520ST (1Meg), 1040STF long button floppy, 2x 1040 STFMs + Gotek, 2x 4160STE with 32Mhz booster, ROM switcher, Mega ST1, Mega ST4, not to mention various bare ST boards for testing including a PAK 68/2 :)
Plus the rest..
Amiga stuff, Mac stuff, Sinclair stuff etc...
www.electronicnothingness.co.uk

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