Page 1 of 2
Progress blog on CosmicPuppets STFM servicing
Posted: Thu Aug 13, 2020 9:58 pm
by Steve
Hey guys,
Just a progress blog that I'll update as I go:
Motherboard: C070523-001
Problems:
* Corruption on DMA transfers, Ultrasatan
* Video output issues with sync/banding
Required services:
1. New Exxos PSU
2. STFM Video capacitor replacements (exxos kit)
3. Remove old motherboard ram
4. Complete motherboard re-cap
5. DMA and floppy resistor pull-up fixes
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Thu Aug 13, 2020 10:00 pm
by Cosmic Puppet
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Thu Aug 13, 2020 10:03 pm
by exxos
Kill the rubbish marpet while your in there
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Thu Aug 13, 2020 11:15 pm
by rubber_jonnie
@Steve Nice work sir.
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Fri Aug 14, 2020 12:27 pm
by Steve
Bye bye DRAM
- IMG_20200814_121821.jpg (477.01 KiB) Viewed 4122 times
- IMG_20200814_121802.jpg (521.96 KiB) Viewed 4122 times
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Fri Aug 14, 2020 1:42 pm
by Cosmic Puppet
That's awesome!
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Fri Aug 14, 2020 3:45 pm
by Steve
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Fri Aug 14, 2020 4:37 pm
by PhilC
Looks like a nice job there @Steve
Re: Progress blog on CosmicPuppets STFM servicing
Posted: Fri Aug 14, 2020 8:28 pm
by Steve
Floppy drive resistor fix applied:
- IMG_20200814_201402.jpg (434.82 KiB) Viewed 4048 times
Test floppy and system by loading frontier:
- IMG_20200814_202613.jpg (423.73 KiB) Viewed 4048 times