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Welcome to the Forum, Drygol . . . Enjoy . . .

We like refurb jobs

Dave H

I'll take one if there is one spare. On the list Ian . . . Seems to be a slightly odd order of address lines out of the shift registers, would be better if you re-ordered to make the shifting out of the value by your program easier. Yes, I know . . . Just copying what I already have working on the ...

Yes - you just read the PAL as a 27C020 and then pass the "ROM" image to the PA software as a binary file. So that's what I've decided to do. However, instead of trying to read the part on my Programmer (seemingly, may not anyway!) I've put together a quick and dirty adapter that conforms to the re...

Welcome to the Forum, Ben . . . Enjoy . . .

Dave H

Contact adhesive or epoxy should fixt that . . .

Dave H

Welcome to the Forum, Chris . . . Enjoy . . .

Good luck with your System x restoration

Dave H

1024MAK wrote: ↑

Sun Oct 14, 2018 2:07 am

Two things...
It’s not a very good “screen protector” if it can’t even keep mould out...!
I’m disappointed that the big white power button does not light up...

Mark

It's the glue that goes mouldy! But you knew that . . .

Dave H

Did you know that there's a successor to this? Search for the AP6 and then details about the ROM Utilities.

Dave H

Two thing I miss from my Yokogawa 'scope: Remembering settings over a power-cycle - and the Trigger Marker Not going off screen when the X time base is expanded.

Dave H

sbadger wrote: ↑

Sat Oct 13, 2018 8:22 am

I was waiting for Dave to say, just put it in the dishwasher....

I'm a bit disappointed!

Missed opertunaties

Dave H

Once you’ve managed separate the two pieces, it’s a case of cleaning up and then re gluing them together. I’ve one waiting for me to do, from my Rarther Large , I think, HP68000 (?)

Dave H

Edit: I wan’t thinking of using the Dremel on the screen, just the outer casing.

I think it’s on with the safety gear and out with the Dremel! After doing the Yoga to steady the hands - maybe have someone with you too!

Dave H

Welcome to the Forum, Donkeywings . . . Enjoy . . .

Dave H

Welcome to the Forum, Derrick . . . Enjoy . . .

Hope you get your B sorted and working!

Dave H

The program isn't mine - it comes from here . It's from his post on reading secured PALs. Ah! Thanks Rob . . . I built the adapter to read the PAL as an EPROM and then used the PA software to analyse the bin/rom file. The software takes the binary "EPROM" dump and generates a text file in CUPL form...

I'm quite surprised nobody has flinched at the fact the outputs from the LS139 on my cart are effectively reversed compared to the schematic. Might be worth making a note somewhere on the cart diagram to confirm which IC socket is enabled by which pin and use accordingly? I'll check the board I hav...

StarDot, ABUG and my workshop

Dave H

Endnote: Jonathan's 'Recover' program was started at around 13:30, yesterday. It was still running this morning - I was warned! It looks like it searches for Directory entries - sector by sector. Last time I looked it was on sector 9Dxxx :shock: I'll probbly stop this later this morning . . . Is th...

Update (at last) . . . I've now been working on the recovery of the 2 PLDs, on and off, for the last week (Mrs H is away for 2 weeks in November :D :oops: ) and, apart from the lost file shenanigans I seem to be making progress. Although RobC recovered the contents of IC1 (attached) I've decided to ...

Well, not exactly . . . As I'd miss remembered the first line, due to changing it for this program - yes, it's an age thing - I had to think of something else unique! Which was " IC1A " - and there it was, just where I'd left it . . . So, file recovered. Many thanks to ALL concerned , especially Jon...

Welcome to the Forum, Ari . . . Enjoy . . .

Dave H

Yes, I had a quick look at Cal.'s recover - options for 40/80 drives only - bit of a clue!

Dave H

If you've backed up the SD card to your Mac/PC could you just use a hex editor to find the file and reinstate it somehow? I back-up the SD card every week - Usually back-up files I've worked on locally, at the end of every day. That would have been about 5 min. after I deleted the file :? Trying Co...

I don't expect it to be any different, but it might be worth trying the latest v4.2B version of the EEPxx tools that I posted yesterday. There are some subtle differences between that and the EEP32C version, which was just a quick and dirty patch. I'll try v4.2B ASAP - it may be tomorrow, though, a...

Which cartridge PCB have you modified? Is it the one described by MartinB here ? Or another? I've done the above mod. without any issues! Would you like to try some known good boards? I could send an ABR, ARA III and one of the above linked boards. It might eliminate things. Have you tried Ken's V42...

Okay, so next question: does anyone want any/all of these cassettes? Free for postage, obviously. Otherwise they'll only get stored in a cardboard box in the loft as I realistically won't have the time to do anything with them in the foreseeable. I could add these to my collection . . . I plan to c...

Dave, just make a copy of the drive files on the SD card on your PC, and drop them back on if you bugger it up :) Don't worry about copying between LUNs on the 8bit machines :D d. Thanks, Daniel . . . That's exactly what I intend to do . . . I was 'snatching' a few minutes, yesterday, to continue t...

Thanks, Jonathan . . . Looks like I've some work to do! One handy point about using SD cards, for storage, is you can back-them-up and just keep having a go! I'm a bit unsure about using something that backs up all files - due the the size of the disc! Hopefully I'll be able to use one of the other ...

with DFS, I had a program from TMU or TAU, it was easy IF a basic deleted prog, just went through the sectors to find start of it (handy if had 'REM bobs prog' at start), save to RAM, then when found the last sector of it, just save all RAM off to another disc (just incase got end wrong) ADFS shoul...

I deleted a file, accidentally, by mistyping #-o It's on my BeebSCSI, so ADFS. I usually use AFM which makes you 'look' at the files you highlight (and no typing involved) but, in a rush as I'd been repurposed, again, all day :? What's the best tool? How do I find the deleted file? How do I reinstat...