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ZX Spectrum 48k ULAlooking for a ZX Spectrum 48k ULA Thanks Phil
Part number of existing ULA?
Board issue version?
Are there any Sinclair modifications (dead bug or spider)?
[b][i]Mark[/i][/b] -
Wanted: RGB SCART cable for heatsink 128K and ULA for issue 3 ZX SpectrumHi all, I'm after an RGB SCART cable for a heatsink 128K as well as a replacement ULA for an issue 3 ZX Spectrum (Ferranti ULA from memory). Can an…
... a replacement ULA for an issue 3 ZX Spectrum (Ferranti ULA from memory ... -
ZX Spectrum 48K board Issue Two - spider modI have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted. [URL="http://www.a…
I have a working Spectrum 48K Issue Two for sale on Amibay. It?s an early version with an ULA 5C102E and the "spider-mod" fitted.
[URL="http://www.amibay.com/showthread.php?t=57438"]http://www.amibay.com/showthread.php?t=57438[/URL] -
What board issue was the last in rubber key case?Just picked up another rubber key case and upon opening it i found an issue 4 board.I thought the board number was a bit high as though it should be …
Just picked up another rubber key case and upon opening it i found an issue 4 board.I thought the board number was a bit high as though it should be in a +?:confused: -
Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…
- Including ULA (version that [URL="http://www. ... to the board issue[/URL] - click to find out more about ULA versions ... /> Board issues available: 3, 3B, 4A, 4B, 4S, 6A (no issue 2 ... -
Spectrum board Issue numbersWhilst cataloging my spectrums I am documenting the issue numbers of the motherboards. so far I have (all spectrum or smegtrum + Issue TWO 3 3B …
... spectrums I am documenting the issue numbers of the motherboards.
Issue TWO
3
3B ... there ever an issue 1 and an issue 4 or 5A.
issue number of ZX Spectrum 48K by means of serial numberIt is possible to identify the board issue of ZX Spectrum 48K/+ by means of the serial number? If yes, how? [ This Message was edited by: nalexan …
... is possible to identify the board issue of ZX Spectrum 48K/+ by ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... , board issue and datecode from various components such as modualtor, ULA, ... , but any additional information (issue, datecodes on components) would ... [CODE]Serial : [xxxxxxxxxxxx] [ colour ]
ULA : [5C012E 5C112E 6C001E-6 6C001E ...Have a real 48k Speccy? yes ? I need your help.Im looking to run this quick test on as many [COLOR="Red"](only)[/COLOR] 48k Spectrums as possible [B][COLOR="Red"]files moved[/COLOR][/B] [URL="ht…
... /> If you know the board issue, the CPU, ULA you have inside please ... [/COLOR]
ULA: [COLOR="red"]6C001E-7[/COLOR]
BOARD ISSUE: [COLOR="red ...ULA6C001E-7 and 48K Issue 2Dear Sirs, Could you please let me know if ULA6C001E-7 or ULA6C001E-6 chip was suitable for 48K board issue 2 ? I heard some mods are neccessary…
... chip was suitable for 48K board issue 2 ?
I heard ...Loading programs directly via SoundblasterLet's just hope this does not sound too silly (I'm a newcomer)... Is is possible to connect a real Spectrum's MIC port to the audio out port of a Sou…
... I think it's a board issue thing.
[/quote]
board revisions
Btw, MIC ... the input impedance of the ULA pin is). This means the ... a lot louder at the ULA input pin (about 50% of ...Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... most left side of the board) which might have gone dry ... . Their capacity depends of the board issue you spectrum is, it can ... be just one capacitor (C25, issue two). Just see what you ... mean faulty ULA chip (ferranti socketed chip, IC1 on the board), replace ...Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... faulty ULA chip (ferranti socketed chip, IC1 on the board), replace ... past the issue two board since there's some ULA timing issue that was ... it to fit into the board, and eventually, the cap ... could eventually touch the circuit board and cause damage.
...Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
Dude, PM me your address again - I don't store peoples' details on my 'puter. I've got several spare ULA's here, just let me know which board issue you're talking about. :)Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... several spare ULA's here, just let me know which board issue you ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... Colour C.O.M Board Issue UM CPU ULA Notes
003-690957 ...Have a real 48k Speccy? yes ? I need your help.Im looking to run this quick test on as many [COLOR="Red"](only)[/COLOR] 48k Spectrums as possible [B][COLOR="Red"]files moved[/COLOR][/B] [URL="ht…
... [/COLOR]
ULA: [COLOR="red"]6C001E-7[/COLOR]
BOARD ISSUE: [COLOR="red ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... Green
ULA 6C001E-6
Hitachi ROM
Board issue 3B
ULA 5C112E-2
Hitachi ROM
Board issue 2
ULA 5C112E-3
NEC ROM
Board issue 2
broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…
it was TR5 (issue 3B). no need to replace ... its legs were ripped from board. I soldered them and voltages ... /> but after trying to remove ULA board, something cracked and now its ... />
here is image of board: [URL="http://www.fileden.com ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
Another one from me just aquired it.
Spectrum 48K
Serial: D01-254812 (Green)
Board: Issue 3
ULA Ferranti 6C001E-6 8345
CPU: NEC D780C-1
Modulator: Astec 8333
Original Membrane: part failed Board: OKPrice of nice condition issue 1 48K Speccy?I recently came across a 'really great example' issue 1 48K Spectrum on the Internet for ?250 with RF Cable, Mic ear Cable, PSU, Manuals and the Hori…
... supply, display electronics and ULA. The Issue 1 board was very much a ... Issue 2.
The Issue 2 board had problems with the on-board ... all the issues, except an Issue 5 board. I am also lucky ...48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
Board issue numbers? All issue 3 or above I take ... " for every pulse that the ULA outputs a high on pin ... on the collector terminal. The ULA pin 28 voltage on diode ... 0.7V less (than the ULA pin voltage) on diode D9 ...The ULA6C001E-5...Hi everybody, I have been continuing my Quest for the Holy ULA, and have today taken delivery of a ULA6C001E-5. Now, the -6 was used in Issue 3 boar…
... pad drivers of the 6C ULA was to reduce power ... ULA process and had nothing to do with tuning the Sinclair Issue ... size. Hence, on the circuit board, the pull down resistors went ... />
5C Issue Two board with 6C ULA
6C Issue Two board with 6C ...Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…
... =1024MAK;790308]The early ZX81 ULA chips don't include part ... your fault. The early ZX81 ULA chips work fine with B ... colour TV that the later ULA wouldn't play ball with ... any problems with the issue three (later ULA board) and colour sets.
Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…
... any problems with the issue three (later ULA board) and colour sets.
ULA...
The Sharp ... working issue 1 and issue 3 ZX81 machines regardless of which ULA is ... my comments have confused the issue.
[B][I] ...Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…
... 't think it's even board issue related, as I've got ... two issue 6 boards:
1 ... on the PCB and/or ULA batch that causes the clock ...Access to ZX81-Service ManualI need the ZX81-Service manual to repair my sick Zeddy. Unfortunately I don't get access to WOS documents via ftp. How can I register? For the ZX-S…
... ZX81 ULA can be used in any ZX81 or Timex 1000 board issue ...Access to ZX81-Service ManualI need the ZX81-Service manual to repair my sick Zeddy. Unfortunately I don't get access to WOS documents via ftp. How can I register? For the ZX-S…
[quote="1024MAK;834538"]
Any ZX81 ULA can be used in any ZX81 or Timex 1000 board issue.
[b][i]Mark[/i][/b]
[/quote]
Thanks so much!IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... .
The Spectrum ULA is a good example of ... into the ULA (ULA versions 3C112E and later) and the Spectrum board (issue 3 ... onwards).
The ULA port does ... them. When reading from the ULA, where the upper-most ...ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …
... on the new Test board is above the main ... correct a design issue with the ULA. On issue 3 and ... later boards, TR6 is included on the board ... a picture of an issue 2 board where this has been ... back to the Spectrum board. Only use enough cable ...
