Looks like I'll be getting a Mega ST4 soon

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rubber_jonnie
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Re: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 11:07 am

PhilC wrote:
Sun Oct 13, 2019 10:56 am
They did arrive pretty quickly, so youd better get cracking :lol:

Have you got a spare sound chip or would you like me to send you one?
Offer much appreciated, but I have a spare and a socket too.

Planning on cleaning the PCB today and getting the sound chip in and making sure it boots afterwards. I'll also likely give the case a good scrub too. I'm not concerned about retrobrite, the case can stay battle scarred 😁

I'm on leave the week after next so hopefully it'll be up and running pretty sharpish and I can have a play with it properly.
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

stephen_usher
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Re: Looks like I'll be getting a Mega ST4 soon

Post by stephen_usher » Sun Oct 13, 2019 1:56 pm

rubber_jonnie wrote:
Sun Oct 13, 2019 11:07 am
Planning on cleaning the PCB today and getting the sound chip in and making sure it boots afterwards. I'll also likely give the case a good scrub too. I'm not concerned about retrobrite, the case can stay battle scarred 😁
Bah! Just spray it with this stuff from B&Q:
IMG_1589.jpg
IMG_1589.jpg (63.56 KiB) Viewed 1188 times
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: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 3:37 pm

stephen_usher wrote:
Sun Oct 13, 2019 1:56 pm
rubber_jonnie wrote:
Sun Oct 13, 2019 11:07 am
Planning on cleaning the PCB today and getting the sound chip in and making sure it boots afterwards. I'll also likely give the case a good scrub too. I'm not concerned about retrobrite, the case can stay battle scarred 😁
Bah! Just spray it with this stuff from B&Q:
That's not great timing, I just scrubbed the case :)
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

stephen_usher
Posts: 387
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
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Re: Looks like I'll be getting a Mega ST4 soon

Post by stephen_usher » Sun Oct 13, 2019 3:55 pm

It needs cleaning before you paint it anyway!
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: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 5:29 pm

stephen_usher wrote:
Sun Oct 13, 2019 3:55 pm
It needs cleaning before you paint it anyway!
Lol, I was thinking something similar TBH :)
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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rubber_jonnie
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Re: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 5:42 pm

Ok, good news bad news time.

Good news is that the replacement sound chip is in, as is a Blitter, though not having a keyboard means that testing either is problematic, and since I want to run through the diag cart tests I really kind of need one. However I have ordered an Eiffel adaptor which should be on the way soon, so I can get down to proper testing.

Bad news is that with a floppy connected, I never booted to desktop (Just white screen, and the floppy seek sounded wrong), though on removing the plug to try another floppy, the damn thing disintegrated on me, so I'll fit a proper 34 pin header in place of Atari's ridiculous one, and then use a new cable to connect up. If it doesn't work after that, then I will see if an external floppy works, and re check the connections on the sound chip in relation to drive 0/1.

One final weird thing is that sometimes when I boot with the diag cart connected it shows 2M installed, sometimes it shows 4M installed, so I'm hoping that the Eiffel arrives pretty soon so that I can get some diagnostics run.

Still, seems like progress to me.
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

stephen_usher
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Re: Looks like I'll be getting a Mega ST4 soon

Post by stephen_usher » Sun Oct 13, 2019 5:47 pm

Can't you just solder some wires onto the keyboard socket and connect a standard STFM keyboard in the meantime?
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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Re: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 5:56 pm

stephen_usher wrote:
Sun Oct 13, 2019 5:47 pm
Can't you just solder some wires onto the keyboard socket and connect a standard STFM keyboard in the meantime?

I can, I have 4 spare keyboards, so yes, just have to get round to it, and I have other stuff to do as well.

EDIT: details found right here on this forum: viewtopic.php?f=23&t=1346

So time permitting I may have a go later. Will probably see if I have any old RJ11 cables in my big box 'o cables that can be sacrificed.

Better get back to the stuff I'm supposed to be doing.....
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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PaulJ
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Re: Looks like I'll be getting a Mega ST4 soon

Post by PaulJ » Sun Oct 13, 2019 8:56 pm

Without a keyboard for now use a serial connection to test with the drag cart.

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Re: Looks like I'll be getting a Mega ST4 soon

Post by rubber_jonnie » Sun Oct 13, 2019 10:11 pm

Sadly been stuck fixing the central heating tonight 😞
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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