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+3 - beeper sounds but no AY musicHi guys I am repairing a plus 3 revision 2 board that had no sound at all. Using schematics from https://zxnet.co.uk/spectrum/schematics/ I manage…
... to be anything wrong with TR4, although there could be (I ... -
48K Issue 3B slowly fading over 15-20 seconds, capacitor gets hot.Hi folks, Recently my much-modified* RAM testing 48K board failed with a hot/burny smell so I turned it off quickly for looking at later. Thinking…
... later. Thinking it was probably TR4 that had died I went ... -
Help request for an injured Issue 4A spectrumHi folks, I'm hoping to resurrect an issue 4A spectrum that has been in my hoard for a couple of decades since buying it for spares. Someone ha…
... know), tested and replaced faulty TR4 TR5 and the 9v regulator ... -
12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…
... the 4116s and changed the TR4 and TR5 to no avail ... -
zx spectrum 48k low -5volt raili have just received a 48k issue 3. initial tests show that all voltages are there but the -5V rail is only showing -4V. it does boot but i have tur…
... by replacing the electrolytic caps .TR4 and TR5 seem ok .. i ... -
problem when game finished loading 128kI have this problem when some 128k games finishes loading. It just hangs, some time the screen gets corrupted, sometimes nothing happens. It looks …
... /> I'm on a toastrack 6U.
This only happens with ... -
Two new spectrums arrived. One no video.Got a +2 and a Toastrack arrived today. Toastrack was actually in good condition, little wear, though a little dirty. Worked well on first power up, …
... a 6K Toastrack and a 6U Toastrack, A Samsung +, An Upgrade ... -
blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …
... . i am thinking of destroyed tr4 and tr5...
mark -
blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …
... be OK. Check the transistor TR4 (ZTX650) at first. This is ... -
Original rubber key 48k'sThis question is to some point academic; But i seem to remeber the original 48k Rubber Keys Speccy came in versions 1,2 & 3! (way back when, occasi…
Problem with RealSpectrumWhy am I having difficulty getting certain games to laod in RealSpectrum? The game seems to be loading ok then the screen goes black and nothing hap…
... the test on an issue 6U (the most common around, AFAIK ...Problem with RealSpectrumWhy am I having difficulty getting certain games to laod in RealSpectrum? The game seems to be loading ok then the screen goes black and nothing hap…
... bars flicker on an issue 6U and an issue 6K, while ... don't on another issue 6U. He has an issue 2I ... there are two distinct issue 6U models showing opposite results. The ...ANN: Spectaculator 6.2[NEW]: Spectaculator 6.2 Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Spectaculator emul…
... /> Infact, he has 2 issue 6U 128ks - one that runs it ...Problem with RealSpectrumWhy am I having difficulty getting certain games to laod in RealSpectrum? The game seems to be loading ok then the screen goes black and nothing hap…
Top 10 Games - All Formats (Pre Playstation era)Without being biased only towards Spectrum games what are your favourite 10 games? (Apologies if this has been asked before) My favourites: 1 Sensi…
... flow of the game.
TR4 was the most impressive.. and ... liked but it was just TR4 GOLD edition. Nothing More ( I ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... (16k). Problem is most propapbly TR4. Would you like to sell ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... />
Incidentally, anyone looking for TR4/TR5/TR6:
[url="http ...Spectrum Issues by Serial?Wotcher all, Just wondering, as I gaze idly at my newly bought off eBay Spectrum+... is there any way of telling from the serial number what issue a…
... voltage fluctuation and boom goes TR4/TR5.
Of course ...video problem with 128kHi. I bought a 128K (the one with the huge heat sink in the right side) some years ago. Everything seems to work properly except the screen. It doesn…
... switching transistors for faults. Check Tr4 and Tr5. I have a ...How many Speccy's Did U Own?Hey guys, just wondering how many Spectrum's you lot owned???? I had 3....I used to smash them up when I got pissed off on a game...Seriously....tha…
... my original kit (after fixing tr4). The other 16k pcb is ...Tomb Raider - LegendSeven and a half hours. Seven and a half bloody hours. Seven hours and a tad over thirty mins TOTAL. Great Graphics. Great Story. A GRAND TOTAL …
... , the TR3, then TR1, then TR4, TR5 I found a waste ...Tomb Raider - LegendSeven and a half hours. Seven and a half bloody hours. Seven hours and a tad over thirty mins TOTAL. Great Graphics. Great Story. A GRAND TOTAL …
... was my personal fave with TR4 a very close second, but ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... the ZTX650 mentioned is the TR4.
In addition to ... voltages are present before the TR4 blows. Check one at a ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... the ZTX650 mentioned is the TR4.
In addition to ... br /> The COIL between TR4 and TR5 (does it look ... voltages are present before the TR4 blows. Check one at ... br />
I replaced tr4, tr5 and the coil but ... /> On one board the tr4 dies instantly, on the ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... remove D15 to see if TR4 blows again. This will eliminate ... into the base of TR4, which will open TR4 too much, and ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... is it true that my tr4 and tr5 are in good ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... is it true that my tr4 and tr5 are in good ...
