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Issue 6 repair with a twist...(Starting with a slight grump - the forum ate my first attempt at this so this'll probably end up being a bit terse :)) I got a Issue 6 48K machine …
[QUOTE=balford;792988]The board and firmware ... pattern only. The real memory tests do check AND change the ... -
Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
... 'm not sure what the tests are telling me, perhaps you ... , any ideas?
[B]balford - ZX-diagnostics[/B]
tests, all pass, I see the ... Spectrum+ I run the same tests the first four pass, however ... -
Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
[QUOTE=balford;800203]The counter hanging at ... version of the ULA/Interrupt tests.
Again comparing the ... machines, the 1,2,3 tests are the same on both ... -
Sinclair ZX Spectrum 128My loving mum has brought me back one of these beauties from a carboot sale but I'm haven a slight problem with it I CAN'T FIND THE ON SWITCH!!!!!…
[QUOTE=balford;800394]That part is (or ... going to run through the tests for the 48K explained in ... -
Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
[QUOTE=balford;800392]Time to break out ... the CPU and doing the tests with the red positive probe ... -
A redesigned version of Winston's diagnostic board[U][B]A redesigned version of Winston's diagnostic board[/B][/U] This is a continuation of a project that started in a hijacked thread [URL="http://…
... />
Russ
[QUOTE=balford;812201]Hi Russ,
tests on real hardware as my ... -
Strange keyboard port reads on 48+Hi all, I don't know whether it was already discussed (I also searched forum, but there are too much of results searching "48k keyboard" so I didn't…
[QUOTE=balford;814327]I tried the latest ... " addresses, thank you for your tests.
when I get ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... infallible. More rigorous randomness tests (as the Diehard suite) are the only ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... infallible. More rigorous randomness tests (as the Diehard suite) are the only ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... consecutive pairs. The basic RNG tests are to take k-tuples ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... easily, although a good test suite does help.
No that ... functions. To create thorough unit tests it might take me another ... -
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
Hi balford :)
Thanks :)
Working :)
< ... /> Or for +3 and 2a tests need to load from tape ... -
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
[quote="balford;831210"]ZX-Diagnostics can also ... equally unable to perform any tests?
B[/quote]
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
Guess what Balford and I have been working on over the last few days... :)
http://alistairtesting.no-ip.org/tests.pngIssue 6a - no soundHi all I get from ebay one issue 6a, Burned 7805, ztx 650 After this all look fine, zx diagnostic board pass mem test but not have sound, i change…
... all is working :)
Thanks balford :)
I want to ... 12v is ok digiboard pass tests (now have and start sound ...Spectrum 128k +2A Resets after loadingHey Everybody, I'm from Australia and I'm new here in the forums. I was hoping to pick everyones brains over a problem with a Speccy I acquired o…
... the tape version of @Balford's zx-diagnostics tests: https://github.com ... /brendanalford/zx-diagnostics/wiki/Tape-Tests.
The reason I ...I'm writing an Operating SystemOkay this might seem like a bait thread, but I am legitamately interested in figuring out how to write a multi-process system for the ZX Spectrum (no…
... the party. I had successful tests with following rude technique that ... with any assembler/C compiler suite if certain programming techniques are ...I'm writing an Operating SystemOkay this might seem like a bait thread, but I am legitamately interested in figuring out how to write a multi-process system for the ZX Spectrum (no…
... the party. I had successful tests with following rude technique that ... with any assembler/C compiler suite if certain programming techniques are ...ZX Spectrum issue 4B acquiredI recently acquired a ZX Spectrum with serial number 138-363292 on the case, and a 1983 issue 4B board I got it for the purpose of repair. and have…
[quote="balford;884645"]Watch this video, it should be required viewing for anyone attempting to repair a Spectrum for the first time:
B[/quote]
Thanks :) will try them tests and see what i getSpectrum 48+ 4S - Upper RAM issue, and now a self-created problem!I recently picked up a known-flaky spectrum off eBay, to have a bit of fun fixing it and reliving youth. It was labelled as 'keyboard duff, shows…
... far as the above resistance tests goes, and powered up as ... 32767 every time.
Balford's tape-based test shows ...Spectrum 48+ 4S - Upper RAM issue, and now a self-created problem!I recently picked up a known-flaky spectrum off eBay, to have a bit of fun fixing it and reliving youth. It was labelled as 'keyboard duff, shows…
... />
This looked better on Balford's test too - well, at ... 't fail all upper RAM tests.
[img]http://www ...TAPER tests.I've managed to get TAPER to play .TZX files, but here's something I've noticed. When I import a file like "The Rocky Horror Show", it says that the …
I've managed to get TAPER to play .TZX files, but here's something I've noticed.
When I import a file like "The Rocky Horror Show", it says that the time remaining for the playback is 4:43, and then it counts down. But when it gets to about 0:10 ...Best Soccer Game Ever!What?s your favorite spectrum soccer game ever? For me, Emlyn Hughes International Soccer; Match Day;Trak Suite Manager;MultiPlayer Soccer Manager. C…
What?s your favorite spectrum soccer game ever?
For me, Emlyn Hughes International Soccer; Match Day;Trak Suite Manager;MultiPlayer Soccer Manager.
Cheersundocumented Z80I am documenting a feature nobody has done before and no emulator gets right at this time. I'll have a report after doing some more tests. Fraser.
I am documenting a feature nobody has done before and no emulator gets right at this time. I'll have a report after doing some more tests.
Fraser.ANN: Write Spectrum Games in C with speclib121 Announcing the sprite pack C library for the z88dk C cross compiler available from: [url="http://justme895.tripod.com/main.htm"]http://justme895.tr…
... service routine. The final one tests reading from stdin and writing ...Once again about the +3 Disk drive problemI am facing a strange problem with one +3.In the beggining I though it was the drive belt problem which I have proptly replace. The error was still t…
... system goes through all the tests in memory apart from the ...BASin Release 5 available for DownloadJust in case anyone's interested, BASin release 5 is up on my site. It's only really found its' way there cos someone wanted to test it, so I may as …
... , ie, it worked for simple tests but hasn't had a ...NEW INTERFACE FOR ZX SPECTRUM!!Hi all zx-maniax! Here is a letter from Polish inventor, Yarek Adamski. He constructed a new brilliant interface for ZX SPECTRUM. Ready carrefuly i…
... /> I've just finished first tests of YABUS.ZX.
To return to my tests. Several years ago I've ...Basic Compilers and My Compressor CodeAs I mentioned in another thread I'm currently writing a set of compression routines for saving +3 disk space. I've done the first stage (write the …
... if there is a debugger suite for Z80 assembler? (Think my ...Classical music in Spectrum gamesFollowing a point made by GOC, I would list the pieces of classical music featured in Spectrum games. As far as I can remember right now: - Manic Mi…
... 's [I]Nutcracker[/I] ballet suite
Anyone has other ...
