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Help put this back to 16kSo this issue 2 arrived today and ive opened it up just to nosey and confirm that infact it is an issue 2. Now from the help offered in an earlier po…
... this point. If not, further diagnostic work would be needed. -
Cars you used to love when you were a kid, but not so much nowadays.When I was a kid there was an old Porshe 916 in the garage where my parents used to park their car (a Fiat?). The car had been abandoned by the owne…
... cheaper garages , that need specific diagnostic machines. -
Seriously weird Issue 2 issue... (RAM-related)Hi guys; I have been trying to fix up my Issue 2 and have run across a bizarre issue that I haven't seen elsewhere in the forums. Hopefully one of …
... which you can store a diagnostic program that can test this ... -
Seriously weird Issue 2 issue... (RAM-related)Hi guys; I have been trying to fix up my Issue 2 and have run across a bizarre issue that I haven't seen elsewhere in the forums. Hopefully one of …
[QUOTE]At least that means I can then use this Speccy as a test bed for suspect components. [/QUOTE]
No harm having one of those, along with a diagnostic board/cartridge :)
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ZX81 + 16k RAM Pack + Original PSU... What's it worth?Hey guys Got my ZX81 this morning its in excellent condition.. [IMG]http://s30.postimg.org/iwetzxku9/IMG_20140818_142443.jpg[/IMG] However, my T…
... strange. Are there any good diagnostic videos on You tube like ... -
1st interface in 30 yearsHi all, The last time I built a ZX Spectrum interface was 30 years ago, so today I gave it a whirl with an external rom. Switchable in/out of course…
... /Projects/Spectrum-Diag/"]Winston's diagnostic board[/URL] would be a ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... not catch this. Without a diagnostic ROM or board, swapping upper ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... !
What is the diagnostic board you mentioned balford? I ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... =retrogamemart;793073]What is the diagnostic board you mentioned balford? I ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... easy to come by. The diagnostic board seems to be a ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
[QUOTE=retrogamemart;793329]The diagnostic board seems to be a ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... it shows that when the diagnostic program is doing Spectrum ROM ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... it shows that when the diagnostic program is doing Spectrum ROM ... latest source and build the diagnostic from from the link in ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... then page back in the diagnostic ROM relatively quickly.
diagnostic code. Hard to tell without ... /> You could try using the diagnostic LED's to show where ... -
1st interface in 30 yearsHi all, The last time I built a ZX Spectrum interface was 30 years ago, so today I gave it a whirl with an external rom. Switchable in/out of course…
[U][B]A redesigned version of Winston's diagnostic board[/B][/U]
Now continued in it's own thread [URL="http://www.worldofspectrum.org/forums/showthread.php?t=49108"]here[/URL] :grin:
[B][I]Mark[/I][/B] -
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://…
... of all of the original diagnostic pages at [url]www.comportec ... -
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…
... the Spectrum passed all the diagnostic tests (which are I appreciate ... -
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…
... how I normally run the diagnostic tools) would this be sufficient ... use the Balford & Spirantho diagnostic ROMS are these available to ... -
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=Korinel;800000]Thanks for the replies allI would love to use the Balford & Spirantho diagnostic ROMS are these available to download?
[/QUOTE]
See my sig :)
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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://…
... board that can take a diagnostic ROM (as in EPROM or ... . You can then use a diagnostic ROM cart, maybe using one ... same ROM switching that the Diagnostic board offers.
The ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... "]here[/URL] and the latest diagnostic ROM image is [URL="https ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... "]here[/URL] and the latest diagnostic ROM image is [URL="https ... -
Issue 2 Spectrum - Black screenHi I have an issue 2 spectrum which I'm having some issues with. I bought it on ebay so have no idea of the history or how it came to be broken. Whe…
... you had access to a diagnostic ROM / board / cartridge. Would quickly ... -
Spectrum +2a memoryHi all, Happy New Year. A quick question, I have a Spectrum +2a that I am seeing a very intermittent fault, once every 20 - 30 power ups. I plug…
Was that Winston's diagnostic board? I haven't tried that on a +2A or +3, as it doesn't take account of the second ROMCS line changes.
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Spectrum +2a memoryHi all, Happy New Year. A quick question, I have a Spectrum +2a that I am seeing a very intermittent fault, once every 20 - 30 power ups. I plug…
... ;810754]Was that Winston's diagnostic board? I haven't tried ... -
Spectrum +2a memoryHi all, Happy New Year. A quick question, I have a Spectrum +2a that I am seeing a very intermittent fault, once every 20 - 30 power ups. I plug…
The +3 start up diagnostic is actually more thorough than ... correctly, as opposed to the diagnostic routine which just sets 0x00 ... -
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://…
... />
When I run the diagnostic board on my +2A, it ... -
I am looking for a Spectrum doctor screenerI am looking for this interface or i need to get the circuit inside with eprom program (inside too). [IMG]https://lh3.googleusercontent.com/-aaHMWvr…
128K RAM tester as .TAP?I was sure that I've seen a RAM tester that can be loaded with e.g. DivIDE or DivMMC EnJOY! as .TAP. But I can't find it (been searching through the …
... as the software from the diagnostic cartridge which is faster and ...Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …
... />
balford, I loaded that diagnostic program through my Divide2k14.
diagnostic firmware?
With regard ...
