rubber_jonnie wrote: ↑Tue Mar 08, 2022 3:45 pm
What is it doing right now then? What are the symptoms, if you replaced the ROM, RAM and CPU then there's not a lot left.
Mine needed a CPU and VLA81.
Actually, I need to correct myself. I think its the curse of the single wipe sockets.....
The screen is flickering every 5 seconds or so, probably due to this back porch mod but all good now
If you have a back porch mod, it may be clashing with the VLA81, worth checking out the manual and dip switch settings.
As for single wipe sockets, I like to bin them ASAP!!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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.
PhilC wrote: ↑Tue Mar 08, 2022 4:35 pm
@rubber_jonnie yes it looks like it was clashing.
Now going to bin the other two single wipe sockets and we should be good to go.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work
PhilC wrote: ↑Tue Mar 08, 2022 7:56 pm
And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work
I guarantee it's the edge connector, give it a clean with IPA and a spot of contact cleaner and she'll be right
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
PhilC wrote: ↑Tue Mar 08, 2022 7:56 pm
And a couple of dual wipe socket replacements and now we are up and running, although next was to test the Memopak 16k ram pack, which you've guessed it, doesn't work
I guarantee its the edge connector, give it a clean with IPA and a spot of contact cleaner and she'll be right
Yeah I will give that a try but also ha ve a 32k ram chip coming for the internal expansion as well.
