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No CLK on issue 2 ULA pin 32I'm trying to fix an issue 2. The symptoms are as follows:- Black and white bars on screen, colours near impossible to tune in, although these po…
If you have a multimeter with diode test function you could test it -
The BUSH cassette player CRS-132 Not for the Spectrum???So - I needed a new tape player for loading my spectrum games - and I thought - 'why not buy a brand new one - rather than an old machine which may h…
... a working diode, using a multimeter and an oscilloscope. Save yourself ... -
Disabling the ROM without removing the whole thingHi! I've got my hands on a non-working issue 6a. I suspect the ROM may be bad, but other things may be faulty as well. I've read that in an otherwis…
... , remove it. Then use a multimeter to check that the /WR ... -
Disabling the ROM without removing the whole thingHi! I've got my hands on a non-working issue 6a. I suspect the ROM may be bad, but other things may be faulty as well. I've read that in an otherwis…
... the continuity tester in the multimeter between the holes corresponding to ... -
No video output from Spectrum +2 (light grey)Got a strange issue with my Spectrum +2 light grey edition. It was working fine then all of sudden it outputs a black screen while I was using it wit…
No video output from Spectrum +2 (light grey)Got a strange issue with my Spectrum +2 light grey edition. It was working fine then all of sudden it outputs a black screen while I was using it wit…
Tks. I do have a multimeter and can solder so will take a look at the schematics and see if I can id the transistor you mention and see if the 12V has gone.
TomDZX 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 …
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Regarding the cheap digital multimeter, it is nothing wrong being ... ://cpc.farnell.com/duratool/d03046/multimeter-digital/dp/IN07220"]cpc.farnell ... .com/duratool/d03046/multimeter-digital/dp/IN07220[/url]
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 …
... the Mercury MTB01 Multimeter (similar to the D03047 Multimeter)
Positive ...ZX Nuvo 128..Hi There, I have built the ZX Nuvo 128 by Superfo, but it has a problem. The machine is working, but the video signal is completely bonkers. I've …
... whatsoever, measuring stuff with my multimeter, etc. I knew it had ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... is easy to attach a multimeter to test the four supply ...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 …
... is easy to attach a multimeter to test the four supply ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... , check the TR4 using a multimeter in diode testing mode. I ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... the diode setting on the multimeter, and what I should be ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... 3B schematic, and using a multimeter to check what connects to ...Trying to repair a Speccy 48k - No PulsingI've had this machine for ages. I'd I've been putting off fixing it for some time now. So a couple of days ago I pulled it apart and started prob…
... (that moves around) on the multimeter, but no pulsing...very strange ...Confused whether I have a +2A or +2B?I opened up my newly acquired black +2A and what I see is that it's an Amstrad Z0833 Issue 2 board from 1988 . I was changing the resistor to make th…
... getting my hands on a multimeter tomorrow so I can investigate ...How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... . So if you have a multimeter and test the output of ...How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... recommended). Or use a voltmeter (multimeter) or other suitable electronic test ...How to connect universal PSU?A fleamarket find! Spectrum+ without PSU. :) I don´t know if it works. I have universal PSU, please confirm which is the correct polarity? [b]A)…
... cheaper to get a “disposable” multimeter. ;)Replacing lower RAM 4116 ZX Spectrum 48k - desoldering advice please?A long post, but interesting pictures perhaps. :) I'd like some advice: (also apologies I think I picked the wrong 'Hardware' category for this, plea…
... some advice:
Use a multimeter to test the +5V, the ...+3 PSU fault, can it be repaired?First, i'm no electrical genius/engineer but can solder/de-solder when needed! Powered on my +3 today and the monitor was just flickering/breaking…
... the PSU's circuitry. A multimeter with voltage and diode test ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... check which ones work, with multimeter: https://www.raspberrypi-spy.co ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... have some fun with a multimeter to check out the 2 ...Black screen on my 48k SpeccyHi! I have a problem with my 48k rubber key speccy. I keep getting this black screen with white stripes after the computer has been running for a w…
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Do you have a multimeter?
Do you have any ...ZX Spectrum +3 repairI have my first +3 here, and it needs repairs. Hoping someone here can help me out. When I power it on I get this screen with black and white line…
... old Wun Hung Lo branded multimeter that I just couldn’t ...ZX Spectrum +3 repairI have my first +3 here, and it needs repairs. Hoping someone here can help me out. When I power it on I get this screen with black and white line…
... to go and find a multimeter.
[b][i]Mark ...48k packed up after cap changeHi all, I'm relatively new to the Sinclair world, my 8-bit repairs in past was lurking in the dark sides of Acorn, Amstrad and Commodore! I've got…
... the way, apart from a multimeter, do you have any test ...48k packed up after cap changeHi all, I'm relatively new to the Sinclair world, my 8-bit repairs in past was lurking in the dark sides of Acorn, Amstrad and Commodore! I've got…
... test equipment consists of a multimeter, a few test lamps and ...no sound from speaker when trying to load games from tape and games are not loadingcould this be a blown component like a diode or something? it must be something simple. any help would be appreciated as im sure it wouldnt be that h…
... how you can use a multimeter to check (with it removed ...
