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Search Again :: Adv Search 1000 results in 0.029s
<1234567…34>
  • Another 48k Speccy acting as a 16K model.Hi all, I originally was going to post asking for help to fix the new addition to my family a very nice condition Issue 2 sold on ebay as a 16K model…

    ... its a quirk of the 6C001E-5 ULA dunno.
    Just wish my ...
    povvercrazy povvercrazy April 2017 Hardware
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    Some questions about the 6C001E-5 ULA.

    Does the screen ... to the left like the 6C001E-6 ULA? The 5C112E screen matrix ... FE read 191 like the 6C001E-6 ULA or 255 like the ... , unknown number of 6C001E-5 boards and a few 6C001E-6 boards before ...
    rga24 rga24 March 2014 Hardware
  • Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…

    I just had a thought - is this the machine with the 6C001E-5 ULA?

    If so, I wonder is this the reason why this revision is so rare? You could try swapping a 5C112E or upwards ULA from another machine in for a test.

    B
    balford balford September 2014 Hardware
  • 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…

    ... delivery yesterday of a 6C001E-5 ULA, datecode 8324. I ... fitted with a 5C112E-3 ULA previously.

    ... identical to the later 6C001E-x ULA's (i.e. ... may go for all 6C001E ULA's in issue 2 ... 6C001E-6/7 ULA's!

    Conclusion:
    The 6C001E-5 ULA ...
    balford balford September 2014 Hardware
  • Which ULA to fit in which issue SpectrumI spent a little while studying the resistor changes on page 30 of the ZX Spectrum 48K service manual. They all concern aspects of the video circuit …

    ... problems to have the correct ULA for that board.
    ... designed for 6C001E-6 but can take 6C001E-7 (or 6C001E-5) as ... boards are designed for 6C001E-7 and cannot take ... -2 or -3) or 6C001E (-5 or -6). It can also ... 5C112E, 1K for 6C001E. The older ULA seems to be ...
    rga24 rga24 April 2014 Hardware
  • ULA 6C001E-7After doing an audit of my Spectrum PCBs, I find I have one too many 6000 series ULAs and one too few 5000 series ULAs. Would anyone like a 6C001E-7 …

    ... . Would anyone like a 6C001E-7 ULA in exchange for a 5000 ... series ULA, either 5C112E, 5C112E-2 or ...
    rga24 rga24 April 2014 Sales
  • Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …

    ... /> Anyone ever seen a 6C001E-7 ULA with no indication of "Ferranti ...
    pkersey pkersey December 2014 Hardware
  • Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …

    ... />
    I tried another 6C001E-7 ULA, taken from a working issue ... perfectly when fitted with the ULA from ZX285.

    ... contact of KB1 and the 5 V, 12 V and ... an oscilloscope to monitor the 5 V and 12 V (at ... up to +/- 1.5 V on the 5 V supply. There is ...
    Zorn Zorn February 2016 Hardware
  • doubt about swapping ULA in an issue 2 boardIs it possible to swap a 6C001E-6 ULA type with a 5C112E ? I have this issue 2 board that is not booting, it shows me a black border with horizont…

    ... it possible to swap a 6C001E-6 ULA type with a 5C112E ... suspecting a CPU problem, or ULA.
    Diagnostic ROM doesn't ... would like to swap the ULA and Z80 to narrow the ... like to try swapping the ULA as I have another working ...
    gleegum gleegum September 2020 Hardware
  • 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…

    ... (8319 SRC 095)
    ULA: Ferranti ULA 6C001E-7 8411
    CPU: NEC ... 6A (8440 SRC 168)
    ULA: Ferranti ULA5C112E-3 8304
    ULA: Ferranti ULA 6C001E-5 8331
    CPU: NEC ... 3 (8319 SRC 121)
    ULA: missing
    CPU: NEC 8319P8 ...
    The President The President April 2011 Sinclair Miscellaneous
  • New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …

    ... /> [B][U]Toastrack 128 (ULA: 7K010E-5 8612, CPU: Zilog Z8400APS 8609 ... /> [B][U]Spectrum +2 Grey (ULA: Amstrad 40056 8630, CPU: NEC ... on my 48K machine with 6C001E-7 ULA all consistently returned 69888 ...
    balford balford March 2014 Emulators
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    ... the timing difference between 6C001E-6 and 6C001E-7.

    Altogether ... ULA.

    5C102E
    5C112E
    5C112E-2
    6C001E-5
    6C001E ... -6
    6C001E-7
    rga24 rga24 March 2014 Hardware
  • 48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …

    ... ULA.

    5C102E
    5C112E
    5C112E-2
    6C001E-5
    6C001E ... -6
    6C001E-7[/QUOTE]
    < ... the left like the 6C001E-6 ULA? The 5C112E screen ... also add: Does the 6C001E-5 include the change to colour ...
    zub zub March 2014 Hardware
  • Why was the Speccy screen displaced?Okay, so maybe this has been discussed before but no idea what search terms to look for. I just watched a YouTube video of someone filiming himself …

    ... affected ULAs are:

    6C001E-5 (need to check this)
    6C001E-6
    6C001E-7

    A ... glitch in the 6000 series ULA sync pulse. TVs can cope ...
    rga24 rga24 May 2014 Sinclair Miscellaneous
  • DivMMC Enjoy! and interface 1 on ZX+Hi there, I recently obtained the DivMMC Enjoy! and I noticed that it hangs if I plug it in the Interface 1 thru-port of my ZX Spectrum Plus. Conne…

    ... have an ISSUE 3B with ULA 6C001E-5. The "high level" of the ... I replaced the ULA to a 6C001E-6 or 6C001E-7 the clock ...
    jimre jimre May 2014 Hardware
  • ZX Spectrum 48K AV IssueOK so I dugout my old 48K Speccy today and decided to AV mod it. I did the mod (pretty easy) but the picture I am getting is this. [url=http://posti…

    ... struck me - the ULA in that machine is a 6C001E-5.

    6C001E-6 and 6C001E-7 are not currently ... in reverse engineering the Spectrum ULA into a [URL="http://www ...
    balford balford July 2014 Hardware
  • 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…

    Nothing in the book about a 6c001e-5.

    We have another member here somewhere fixing a board with a -5 ULA in it, will be interesting to see if it's behaviour ends up matching your experience!

    B
    balford balford August 2014 Hardware
  • 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…

    ... in the book about a 6c001e-5.

    We have another ... fixing a board with a -5 ULA in it, will be interesting ...
    chev chev August 2014 Hardware
  • 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…

    ... ULA's video circuitry is obviously "active" like the usual 6C001E ... screen, as though the ULA isn't contending the memory ... .

    Could the 6C001E-5 have been a very short ... could be added to the ULA book (which I really ... use it as a ULA because it's such ...
    Spirantho Spirantho August 2014 Hardware
  • 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…

    [QUOTE=Spirantho;784131]Interesting... his ULA is identical to mine, dated ... /> (snip)

    Could the 6C001E-5 have been a very short ... ? Has anyone ever seen a -5 which has a different date ...
    balford balford August 2014 Hardware
  • 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…

    ... board has another semi-rare ULA, the 5C112E-3.

    6c001e-5.jpg"]http://www.rorschak.com/6c001e-5.jpg[/URL]
    6C001E-5 [URL ... ="http://www.rorschak.com/6c001e-5-2 ...
    Rorschak Rorschak August 2014 Hardware
  • 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…

    ... Ben Versteeg had a 6C001E-5 with datecode 8324. Another ... an issue 3 with a 6C001E-6 datecode 8328.
    6C001E datecode 8326. Serial number ... It could be a 6C001E-5 or a 6C001E-6. If we ... possibly narrow the period this ULA was in production.
    ...
    Rorschak Rorschak August 2014 Hardware
  • 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…

    That 6C001E-5 Ben Versteeg had is now in my possession.

    6C001E-6 was the last ULA used in Issue Two production. There are many 6C001E-6 Issue Two machines.
    rga24 rga24 August 2014 Hardware
  • 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…

    ... were yield issues with 6C001E-5, so 6C001E-6 was quickly done ... -050690 Issue two FERRANTI ULA 6C001E-7 8543 WRONG ULA

    ... /> D01-079840 Issue two FERRANTI ULA 6C001E-6 8345

    ... /> 001-410594 Issue two FERRANTI ULA 6C001E-6 8323

    ...
    rga24 rga24 August 2014 Hardware
  • 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…

    ... words, if you put a 6C001E ULA in an Issue 2 board ... matter, I wonder if the 6C001E-5 is better than the 5C112E ...
    Spirantho Spirantho August 2014 Hardware
  • 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…

    ... always record the full ULA code. I didn't ... list there are many 6C001E ULAs listed but it ... together of all known ULA types with datecodes which ...
    These are the ULA types I have seen:
    6C001E-5
    6C001E-6
    6C001E-7
    6C001EX ...
    rga24 rga24 August 2014 Hardware
  • 'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…

    ... both 5C112E and 6C001E-5/6 ULA's, and the 6C001E-7 is specified ... as a suitable replacement for all earlier ULA ... , back on point, a 6C001E-6 ULA can be tested in an ...
    balford balford September 2014 Hardware
  • 'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…

    ... both 5C112E and 6C001E-5/6 ULA's, and the 6C001E-7 is specified ... as a suitable replacement for all earlier ULA ... , back on point, a 6C001E-6 ULA can be tested in an ...
    HZJ HZJ September 2014 Hardware
  • 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 …

    ... 2 boards
    6C001E-5: the first 6000 series ULA, probably for ZX ... Spectrum Issue 3 boards
    [b]6C001E ... Issue 3 boards[/b]
    6C001E-7: ZX Spectrum Issue 4A ...
    Claudius Claudius May 2017 Hardware
  • Wanted 6C001E-7 ULALooking to replace mine from a issue 4B, anyone got a working one spare in a bag of bits or know where I can get one?

    Looking to replace mine from a issue 4B, anyone got a working one spare in a bag of bits or know where I can get one?
    lesoleil70 lesoleil70 November 2015 Wanted
<1234567…34>

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