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ST-RAM card: White picture with red border

Problems with your machine in general.
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Badwolf
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Re: ST-RAM card: White picture with red border

Post by Badwolf »

stephen_usher wrote: Thu Apr 06, 2023 11:54 am It’s very unusual o see leaking axial caps as they’re usually better sealed.
Save this picture for all those wallies who chirp up on YooToob & various forums with the old 'axials don't leak' nonsense!

BW
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wolfman
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Re: ST-RAM card: White picture with red border

Post by wolfman »

YEAH!!! Success!!!

I finally got it it running flawlessly!

TT DiagCart (Init screen)
TT DiagCart (Init screen)
IMG_20230406_174228.jpg (269.7 KiB) Viewed 1326 times
3 runs without errors
3 runs without errors
IMG_20230406_174749.jpg (305.01 KiB) Viewed 1326 times

Final conclusion:
- 2 shorted pins on the MCU
- 4 traces eaten by axial cap

Thanks to all who pushed me in the right direction!!
My first Atari (from 1987):
Atari 260ST, 1 MByte, TOS 1.02, SF314 & SF354 floppy disks, monochrome monitor SM124
I still have this machine ... :D
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stephen_usher
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Re: ST-RAM card: White picture with red border

Post by stephen_usher »

Badwolf wrote: Thu Apr 06, 2023 1:59 pm
stephen_usher wrote: Thu Apr 06, 2023 11:54 am It’s very unusual o see leaking axial caps as they’re usually better sealed.
Save this picture for all those wallies who chirp up on YooToob & various forums with the old 'axials don't leak' nonsense!

BW
Yeah, I did say better sealed. It doesn't mean that they never leak. Having said that I've not seen one do it in person, though I've seen large numbers of radials do so.
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.
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stephen_usher
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Re: ST-RAM card: White picture with red border

Post by stephen_usher »

wolfman wrote: Thu Apr 06, 2023 4:51 pm YEAH!!! Success!!!

I finally got it it running flawlessly!
Excellent!!!!
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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Steve
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Re: ST-RAM card: White picture with red border

Post by Steve »

@wolfman probably a good idea to replace all those caps now it's working.
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frank.lukas
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Re: ST-RAM card: White picture with red border

Post by frank.lukas »

@Lynxman ... has upgrade pcb´s to put the 2MB to 8MB so you can have 10MB total ST Ram.

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wolfman
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Re: ST-RAM card: White picture with red border

Post by wolfman »

Steve wrote: Thu Apr 06, 2023 6:10 pm @wolfman probably a good idea to replace all those caps now it's working.
Yeah, of course - but I have to source them first...
My first Atari (from 1987):
Atari 260ST, 1 MByte, TOS 1.02, SF314 & SF354 floppy disks, monochrome monitor SM124
I still have this machine ... :D
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wolfman
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Re: ST-RAM card: White picture with red border

Post by wolfman »

frank.lukas wrote: Thu Apr 06, 2023 6:19 pm @Lynxman ... has upgrade pcb´s to put the 2MB to 8MB so you can have 10MB total ST Ram.
Yes - that would be great!
I have 3 TTs, all equipped with a 2MB ST-Ram-Card
My first Atari (from 1987):
Atari 260ST, 1 MByte, TOS 1.02, SF314 & SF354 floppy disks, monochrome monitor SM124
I still have this machine ... :D
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frank.lukas
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Re: ST-RAM card: White picture with red border

Post by frank.lukas »

contact Lynxman and ask him ...

There are two different 2MB Boards one with DIL Dram and one with SMD Chips
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