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Is Ferranti still alive ?And if not......why should there be any restrictions on manufacturing the ULA ?
... don't think the TV modulator's made any more, nor ... well not bother with a modulator anyway. -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... is composite video on RF modulator or RGB port with no ... -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
[QUOTE=netomc;188312]
Hi Gods
Thanks for PCB image and that ULA looks the same as one on my board ...
[/QUOTE]
It's the french version, without PAL coder/modulator and yes, it's the same ULA chip ! -
48K Speccy not workingHey, A few months ago (hope it´s not to late) I was loading a game into my speccy and from one moment to another it stopped working! I unplugge…
... is either PSU or TV modulator, with an outside chance the ... 't generating power for the modulator.
Sonic - no, not ... -
Problems with my specs!!! Help wanted!!Hi, I newly had a zx spectrum 48+ and a Spectrum +2 and got problems with them. The keyboard of 48+ is not working. When i turn it on i see the clas…
... the second one, the TV modulator is likely getting a bit ... -
Problems with my specs!!! Help wanted!!Hi, I newly had a zx spectrum 48+ and a Spectrum +2 and got problems with them. The keyboard of 48+ is not working. When i turn it on i see the clas…
... the second one, the TV modulator is likely getting a bit ... -
A Spectrum that fixes itselfWell, the modulator on my 128K toastrack machine fixed itself. It used to drift horribly within the first half hour or so of power up, but now it's a…
... electrolytic caps in an Astec modulator tho Mr W. Maybe like ... -
A Spectrum that fixes itselfWell, the modulator on my 128K toastrack machine fixed itself. It used to drift horribly within the first half hour or so of power up, but now it's a…
[QUOTE=Winston;193899]Well, the modulator on my 128K toastrack machine ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... 's done in 48Ks. The modulator is bypassed and the RF ... -
Should +2's Be left turned on to save games?Hi, Forgive me for asking you guy's a daft question but, I was just wondering what you think about leaving a Spectrum +2 turned on all the time. The …
... happens the drift on the modulator in mine is so great ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... 's done in 48Ks. The modulator is bypassed and the RF ... -
Low Sound output + Sound distorting pictureHi, I am having a problem with my Grey +2 at the moment while trying to use RGB output. When I load a game the loader tones are fine but the actual…
... PAL encoder chip, even RF modulator! You can see a PCB ... -
Low Sound output + Sound distorting pictureHi, I am having a problem with my Grey +2 at the moment while trying to use RGB output. When I load a game the loader tones are fine but the actual…
... sync pulse was in the modulator itself!!! So we have stabilized ... the modulator so I can now use ... -
NTSC/USA Versions Of Spectrum....?Hello all. First time poster here, so please be gentle! :) My name is Kris. I'm 26 years old, and I live in New Jersey, USA. I'm a big fan of anythi…
... it up to an RF modulator?
Pardon the ignorance ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... composite video was that the modulator is completely different from the ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... ULA) that goes to the modulator, however it's not obvious ... 't have the usual Astec modulator, its all on the motherboard ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... 't have the usual Astec modulator, its all on the motherboard ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... OK to have the existing modulator still in the circuit with ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
... OK to have the existing modulator still in the circuit with ... the MIC socket ! The existing modulator is soldered directly to PCB ... -
My SurplusHere's a list of stuff that I plan to sell. Please let me know if you're interested in any of the items listed below. If you need pictures or more de…
[QUOTE=hldswrth;199335]
The transistor looks like this, viewed from underneath:
[code]
comp signal
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Interface 1 electrolytic capacitorsInterface 1 has three 47μF electrolytic capacitors. Is it necesary to replace them with fresh ones? I always do this with old speccys but is it…
Interface 1 electrolytic capacitorsInterface 1 has three 47μF electrolytic capacitors. Is it necesary to replace them with fresh ones? I always do this with old speccys but is it…
ZX81 - Modulator problems...Not a spectrum I know, but does anybody here have an experience of repairing ZX81s? When I dusted mine down recently and plugged it in, the display …
... , hold the shielding on the modulator case and the centre wire ... the signal input into the modulator (the bare wire on the ... the plastic hole into the modulator, not the one on the ...ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... ). Even if it is the modulator don't worry, someone sells ... of malfunction being present (ULA, modulator).
Also, what i describe ...ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... there is a signal, your modulator is faulty. I would recommend ...ZX81 - Modulator problems...Not a spectrum I know, but does anybody here have an experience of repairing ZX81s? When I dusted mine down recently and plugged it in, the display …
A Spectrum that fixes itselfWell, the modulator on my 128K toastrack machine fixed itself. It used to drift horribly within the first half hour or so of power up, but now it's a…
... this problem is a new modulator - they are 20 years old ... as a mass produced TV modulator). :)ZX Spectrum 48K +Hi, I have a ZX Spectrum 48K + which I bought like a million years ago (1984) My Spectrum has been out of duty for quite some time and I guess I ke…
... chips maybe mulfunctioning
e)Modulator may be out of order ...Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... .e. no need for a modulator or any of the discretes ...Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... .e. no need for a modulator or any of the discretes ... . Simply forget about the RF modulator! Noone wants to break his ...