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+3 with dead expansion portI bought a +3 from a WoS user. So far, the computer works as expected, but when an interface (e.g. DivIDE (configured correctly) or Multiface3) is co…
... CPU. I read the +3 service manual, but it doesn?t specify ... -
+3 with dead expansion portI bought a +3 from a WoS user. So far, the computer works as expected, but when an interface (e.g. DivIDE (configured correctly) or Multiface3) is co…
... CPU. I read the +3 service manual, but it doesn?t specify ... -
Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …
... , but then I read the service manual again and apparently I have ... -
Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…
... on WoS), and the Amstrad service manual schematics have a couple of ... -
Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…
... on WoS), and the Amstrad service manual schematics have a couple of ... -
ZX Spectrum +2A and +2B - finding the true factsI'm confused. Some told me that a +2A has a +3 board, and the +2B got the simplified board. But I think that is not true. I have had over a dozen b…
... -1 according to the +2A manual:
[quote]
If ... in the +2B/+3B Amendment Service Manual titled "Spectrum +3B Floppy Disk ... circuit as in the +3 service manual but they helpfully print it ... -
Help! +3Just got my +3 working after replacing the drive belt. All was OK until I plugged in my Multiface 3 (known working with a +2a) and the computer went…
Cool, according to the service manual (specifically [URL="http://www.worldofspectrum. ... -
Grey +2 DiedHi all, Thrashing my +2 playing Mugsy last night and it did this... [URL="https://m.flickr.com/photos/83515822@N05/13012551693/lightbox/"]https://m…
... read through some of the service manual and can't find any ... . (Unlike the "lil old spectrum" manual for the 48k.)
Spectrum +2 (Grey version) RGB SCART QuestionHi Guys, A quick question for you. As the new owner of a 128K Spectrum +2 (grey version), I'm using a cable from Retro Computer Shack which tries to…
... labelled.
Edit: the service manual says R15, 1kohm so it ...Video on single transistor composite video modification for 48K SpectrumsI made a video on the single transistor composite video mod, using an Issue two Spectrum although it applies to all issues. Much better than the sing…
... . Page 7 of the +2 service manual. The transistor is TR4 2N3904 ...Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... different chapter of the online service manual - which was referred by balford ...TR4 or TR5?My issue two gives horizontal bars on bootup. Flicking reset takes it to copyright screen though. I measured voltages and got 4,9V, 11,99V and -4,3V.…
... ones mentioned in the 48k Service Manual.ZX PrinterHi all, Just picked up a ZX Printer and was looking at getting it working. Anyone repaired these? Symptoms. NO PRINT, goes through the motions bu…
... /spectrum/technical-docs/ZXPrinter_ServiceManual.pdf"]service manual[/URL].
Hopefully it ...Spectrum+ keyboard issueHi I have a spectrum+ (issue 4s board) where the 1-5 keys do not work. I have replaced the membrane and checked for continuity. I have also tested …
... had a look at the service manual (figure 1.3 on page ...VERY loud beeper!!I recently replaced a dead beeper with another from an old set of headphones, only this is MUCH louder! Is there a way of bringing the volume down a …
... have a read of the service manual.
If I get ...Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…
Hmm. Looking more closely the service manual doesn't specify that it ... chips...
The +2 service manual [I]does[/I] specify a ...Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…
... boffins are about... Reading the service manual reminded me of an old ... ?
Reading an early service manual it indicates that this was ...Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…
... . Looking more closely the service manual doesn't specify that it ... ...
The +2 service manual [I]does[/I] specify a ... are about... Reading the service manual reminded me of an old ... />
Reading an early service manual it indicates that this was ...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…
... a HTML version of the service manual (watch out for the errors ...Burned finger temp on rubber 48k heatsink normal?Ok so i opened it up because a few keys started to act up and i noticed that after burning my hand the heatsink was that hot i could actually smell t…
... (too hot to touch), the service manual recommends replacing the capacitor under ...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…
... ULAs came first, and the service manual expressly mentions how Issue Two ...RAM issue for potential 48k buy?Hi guys I've got a 48k in my sight for ?20 but... it has an issue: [QUOTE]"I tested the computer and only displayed a distorted screen. Coloured …
... the technical description in the service manual and have a look at ...Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
Sorry Mr B. But I'm contradicting some of what you have said :-P
If you are really concerned about the +12V and the -5V supplies, modify and upgrade it as per the instructions in the service manual :-D
[B][I]Mark[/I][/B]Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
Fair enough Mark, sure it'd be no fun if we agreed all the time :p
Edit: the service manual gives a lower tolerance of -4v, which contradicts the 4116 data sheets. I can't win :)
BNext step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... /zxspectrum/sm/supp1.html#issue4a"]service manual[/URL] it is actually at ...Issue 2 Fuzzy LinesHow can I improve this picture? the colors etc are good but the lines are rather annoying... I'd played with VR1/VR2 but apart from making it nice an…
Cool, just thought I'd mention it as it's missing in a few of your earlier photos and I wasn't sure of the order :)
The service manual advises replacing LM1889N next, just be careful not to lift tracks ;)
B'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…
Smashing! Super! Lovely! (also... Well Done!) :smile:
Yes, if you follow the twidding instructions (service manual), you can correctly set up the colours on issue 1 and issue 2 Spectrums :p
[I][B]Mark[/B][/I]Sinclair PC 200 Error: Faulty SYSTEM serial portHi guys, this is my first post but not a happy one. I have bought 2 weeks ago an Sinclair PC200, when powerd up it shows the following message: "[B]E…
Dont scare me my friend. I have just look to the service manual and it shows some AMSxxxx chips... Didnt find any replacement chip for those :-xDodgey R62 / D16 on Issue 2?Hello all, I am still beavering away trying to work out why my Issue 2 fails and after a much closer visual inspection I noticed what looks like som…
... Worsley's bible, the Sinclair service manual, circuit diagrams etc) from WoS ...Photo of the Spectrum +2 electronic board.Does anyone know where I can find a photo of the down side of the electronic board of Spectrum 128k +2? I mean NOT the side which you can see in …
try the +2 service manual
Not a photograph tho....
[url]ftp://ftp.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrum128+2_ServiceManual.pdf[/url]
