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+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... in my search for the +3B.
I resorted to ... ... it claims that the +3B is a Z70835 Issue 1.
+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... in my search for the +3B.
I resorted to ... ... it claims that the +3B is a Z70835 Issue 1.
Calling all Spanish +3 owners...Please see [URL="http://www.worldofspectrum.org/forums/showpost.php?p=693601&postcount=40"]this post[/URL] Could my search for photographic evidence…
... find strange is that the Issue 1 board has a ... higher part number than the Issue 2 board, it's ... there is an ISSUE 1 and an ISSUE 2 board. Both ... (C)1987
The +3B ... appears to be the Z70835 ISSUE 1, (C)1988+2 issue oneI can't remember seeing this model board before, so here we go: [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153957.jpg[/IMG] [IMG]http…
... +2A/+3, +2B, and +3B boards the issue number is the revision ... same here then the Z70700 Issue 1 would come after the ... Z70500 Issue 3.
Of course ...spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …
... , just this one exhibits that issue.
I've just ... /> For reference - again a 6A Issue board:
C65 22uf ... the right ribbon connector)
C80 22uf 25V (to the left ...+3 in my handsAfter so many attempts, I managed to buy a +3 in good working order and almost mint condition. I have yet to check floppy drive, but I hope that he i…
I have always thought you could tell by the sound in that the early +3's had the distorted sound bug, and the +3B's were fixed. Mine has the distorted sound and says on the board that it is an issue 2 1987, so think mines an early version.+3 in my handsAfter so many attempts, I managed to buy a +3 in good working order and almost mint condition. I have yet to check floppy drive, but I hope that he i…
[QUOTE=Your Spec-chum;729686]Mine has the distorted sound and says on the board that it is an issue 2 1987, so think mines an early version.[/QUOTE]
Yup, the +3B Issue 1 board is dated 1988"Weird" Spectrum +3Hi folks. I've just dicovered that one of my +3's has an Issue 1 board, with all the mods that are mentioned on guesser's website - the other has (w…
... />
When i bought the Issue 1 Speccy, i already had ... the existence of the fabled +3B was finally proved.
This ... the factory mods on the Issue 1 boards, a little bell ... noticed that it was an Issue 1. Without actually looking FOR ...Two spectrums?I'm trying to find out more about these two Spectrum? The serial number on the first is worn. I found these pictures on the web and that's all I ha…
Is the +3b a myth or just rare?I have a few speccies, one of them being a +3 with terrible sound (terrible that is, until I did a minor mod to replace some resistors, now the sound…
I can confirm the sound issue is fixed in the 3B, I sold one to 1024MAKTape loading problem with Issue 3BI have an Issue 3B 48k that doesn't seem to want to load any tapes. I have an MP3 player connected to the EAR socket. When I type LOAD "" and start p…
I swapped the ULAs over and it turns out the ULA in my 3B is partially duff. :( With the Issue 2 ULA the 3B screen comes to life, when loading and the 2's screen stays blank with the 3B ULA.
I suppose I have to start looking for a replacement.Never saw that before on a black +2Today I opened a freshly arrived black +2. First I was amazed not to see an Astec HF modulator, then I spotted the "Issue two". So far I always found…
ISSUE 2 +2Bs are pretty common I think. ISSUE 3s on the other hand... Well I won't say they never made any cause look what happened with the +3B, but when one turns up I'll do the same happy dance :lol:Never saw that before on a black +2Today I opened a freshly arrived black +2. First I was amazed not to see an Astec HF modulator, then I spotted the "Issue two". So far I always found…
... are pretty common I think. ISSUE 3s on the other hand ... look what happened with the +3B, but when one turns up ...Never saw that before on a black +2Today I opened a freshly arrived black +2. First I was amazed not to see an Astec HF modulator, then I spotted the "Issue two". So far I always found…
Both black +2 - Issue 2 and Issue 4, are quite common. I ... much more quantity than +3. +3B from 1988 seems to be ... old case (until somebody finds +3B on bottom). This suggest, production ...How to tell a Spectrum +3BAnyone know if there's a way to tell externally (from the case) if a +3 is a +3B? I know about the typing 'Spectrum' once in basic. How rare are th…
Easiest way to find out, pop the lid and see if you have a Z70835 board, thats the +3B, Z70830 is a +2A or +3A and Z70833 is a +2B (Issue 1 or 2)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…
... , the -6 was used in Issue 3 boards, so what was ... got it running in my Issue 3 48K here, but it ... wrong. I suspect a timing issue, perhaps what they fixed in ... between a 3A and a 3B.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…
... 6C001E chips, because in my Issue 2 it gives a good ... ]not[/i] like my Issue 3 (not 3B) - if I try and ... section.
Running my 16K Issue 2 with a Cheetah 32K ... at the end of the Issue 2's life? Has anyone ...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…
... ] like my Issue 3 (not 3B)... Running my 16K Issue 2 with a ... at the end of the Issue 2's life?[/quote]
issue 2 but not your issue 3, and providing ... you're sure the issue 3 hasn't been modified ... short run prior to the issue 3's release.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 …
... br /> The ULA5C102E - The Issue One ULA requires the "dead ... the last of the Issue 2 machines before Sinclair ... and crash. The last Issue 2 machines used a ... " for many people, unlike Issue 2 machines which were more ... in use for all Issue 3, 3B and I believe 4 ...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 …
... "workhorses" for many people, unlike Issue 2 machines which were more ... were in use for all Issue 3, 3B and I believe 4 ... about this, I believe that issue 4A boards and above require ...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 …
... "workhorses" for many people, unlike Issue 2 machines which were more ... were in use for all Issue 3, 3B and I believe 4 ... ]
Looks like my issue 2 has had a ULA ...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 …
... it.
[CODE]DATE ULA ISSUE(s)
8214 ...
8341 6C001E6 3B
8342 6C001E6 3B
8343 6C001E6 ... 8401 6C001E6 3B
8402 6C001E6 3B
8403 6C001E 3B
8407 ...
8419 6C001E7 3B
8426 6C001E7 3B
8428 6C001E7 ...Ways to identify spectrum issues with out opening them?A good while ago, I'm sure I saw some posts on here about how to identify what issue speccy you have by looking in the expansion port to see what hea…
... in my experience are all Issue 4A/4B boards.
3B board or Samsung Issue 4S.
Once again, fixing the +3 soundOne more question about fixing the distorted +3 sound. The longer you search the internet, the more suggestions you find. They?re all different, but,…
... replaced by in the +2B/+3B circuit.
The two ... =schombi;813450]
In my Issue One I found TR5 to ...Once again, fixing the +3 soundOne more question about fixing the distorted +3 sound. The longer you search the internet, the more suggestions you find. They?re all different, but,…
... ]So, as Miha fixed an Issue Two, he used 220 ohm ... , where my Issue One requires a 2.2K ... changed for the +2B and +3B.
R206 and R204 ... boards to the +2B and +3B boards.
The resistor ...Dead issue 3b with black and white barsHi all, I've been donated an issue 3b which has some nice black and white bars with a few flashing blocks. I've done a few RAM tests and could spo…
... A10 lines on my working issue 3 and got 0 ohms ... ROM, on my non working 3b, the A0 to A10 lines ...12V ripple with lower ram installedI repaired a speccy this week. Before doing anything I replaced all caps and measured the transistors in the power section. When doing this I found t…
... difference between the 3 and 3b so I was looking at ... marked as C7 on the 3B schematic, but this is an ... as C76 or C78, then C80.
I thought I ...12V ripple with lower ram installedI repaired a speccy this week. Before doing anything I replaced all caps and measured the transistors in the power section. When doing this I found t…
... board resembles the issue 3 board schematic not the 3b. If I ... schematic, it is on the issue 3 schematic though. How would ...Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
Just to add, I've tried them in an issue 2, 3b and a 4s so far.Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
Thanks for the report. Good to know it works okay in an issue 2, 3B and 4S :)
I have an issue 2 awaiting a Retroleum Nebula...
[b][i]Mark[/i][/b]
