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Grey +2 regulatorIv just checked the regulator and its a TS2940. Could someone tell me the equivalent please?
Iv just checked the regulator and its a TS2940. Could someone tell me the equivalent please? -
Missing Voltage RegulatorHello all and a very merry 2-days-after-the-speccys-25th-birthday to you all! Okay, I've just received my brand spanking new 48K keyboard membranes …
... all and a very merry 2-days-after-the-speccys-25th ... rubber keyboard!). Anyway, I bought 2 membranes so I could attempt ... reason ripped off the Voltage Regulator and heatsink. Is there anything ... -
Question about 7805 regulatorOne of my common practices when I service a ZX machine, is to replace the electrolytic caps as well as the 7805 regulator and some times the ztx650 t…
... used the same 7805 voltage regulator but totally by accident I ... uses an 78S05 regulator which is a 2A regulator. That got me ... out that +2 grey also uses the same 78S05 (2A) regulator. I ... service guide...
"78S05 2A regulator can be used, but hardly ... -
Upgrading the Humble Spectrum 128 +2 (Grey)Hello there my fellow WoS'ers I am at a subtle in-pass in my wants for one of my +2 motherboards. I received this mobo, DOA in a job lot from fleab…
... wants for one of my +2 motherboards.
... into it) and 7805 regulator was as dead as a ... br />
[B]2. IDE, strangely enough 8BIT IDE ... but what about the original +2 (and 128k arguably), these ... it with A Spectrum +2. I suspect there would ... -
Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
... pair of non-working issue 2 48K Spectrums that
have ... />
I found its voltage regulator not to be working so ... .
With a new regulator I can now measure +5V ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... ones on the other Issue 2 Spectrum.
... I tested the removed regulator and it seems to ... the resistance between the regulator's middle terminal and ... as on the working Issue 2.
-5V - 80K ... primary measures as 0.2 Ohms and the secondary ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... an issue 2 here that firstly had a blown regulator (fixed), now ... -
Issue 2 video problemHello all, Need some help with an issue 2 board that I 'm trying to restore. I've replaced all the electrolytic capacitors, changed the voltage regu…
... some help with an issue 2 board that I 'm trying ... electrolytic capacitors, changed the voltage regulator, tr4, and a Zener and ... -
+2 (Grey) and AT/ATX PSUAny ideas on the best way to power a grey +2 board from an AT or ATX PSU? Looking at the schematic, I could do this one of two ways... 1: Bypass th…
... to power a grey +2 board from an AT or ... />
1: Bypass the regulator (pins 1 and 3 of ... normally goes.
2: Remove the regulator and supply 5v to ... pins 2 and 3 of ... to 12v and making the regulator get nice and hot, ... -
ZX Spectrum Pre-regulator DesignCarrying on from the "[URL="http://www.worldofspectrum.org/forums/showthread.php?t=44486"]Issue 2 crashes after about 30 mins[/URL]" thread... [QUOT…
... /showthread.php?t=44486"]Issue 2 crashes after about 30 mins ... by the 7805 internal voltage regulator and heat sink.
Instead, the pre-regulator circuit helps out with the ... /> ZD1 .... 8.2V 500mW ZPD8.2 Diotec Zener Diode 500mW 8 ... -
ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... ZX 128K +2 (the grey one).
The regulator was damaged ... !
I replaced the regulator and re-established the 5Volts ... -
One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…
... /> Here I have a grey +2, which could be a bottomless ... and 3 on the voltage regulator and found 5V on leg ... -
12v in a Spectrum +2My Speccy 128 +2 requires a 9v 2.1a PSU, all my 9v PSU's are much below 2.1 amps :( I do however have a 12v 2amp PSU, if I reverse the polarity so t…
My Speccy 128 +2 requires a 9v 2.1a PSU, all my 9v ... PSU's are much below 2.1 amps :(
I ... the 128 has a voltage regulator that will allow me to ... -
'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…
... square 4 pin socket)
[*]Regulator & Heatsink
[*]The Coil ... else I'm missing?
2. Could I test the ULA ... -
Issue 2 Spectrum - Black screenHi I have an issue 2 spectrum which I'm having some issues with. I bought it on ebay so have no idea of the history or how it came to be broken. Whe…
... />
I have an issue 2 spectrum which I'm having ... it, I found the 5v Regulator was fine but TR4 was ... measured the resistance of pin 2 of the lower RAM and ... very low reading on pin 2.
I replaced the offending ... -
Issue 2 48k Yellow DisplayHi guys. As the title says, I have an issue 2 that's displaying the typical yellow/green colour screen at switch on. The picture is clear and stab…
... says, I have an issue 2 that's displaying the typical ... no difference.
Replaced voltage regulator.
Tried to adjust VR1 ... /2 trim pots, no difference..
... Replaced VR1/2 with ones from another board ... -
Issue 2 48k Yellow DisplayHi guys. As the title says, I have an issue 2 that's displaying the typical yellow/green colour screen at switch on. The picture is clear and stab…
... says, I have an issue 2 that's displaying the typical ... no difference.
Replaced voltage regulator.
Tried to adjust VR1 ... /2 trim pots, no difference..
... Replaced VR1/2 with ones from another board ... -
bizarre error on a grey ZX Spectrum+2 - the long search for a small problemHi, I got a ZX Spectrum+2 that worked a bit but crashed while loading or running 128k games. I installed a 128k-test-ROM that told me about RAM fa…
... I got a ZX Spectrum+2 that worked a bit but ... seems to work. I tested 2 interfaces (MB02+ and divIDE) ... transverter while using the 5V regulator -> Buzzsasw did run ... the transverter of a grey +2 is ok! :)
2.
Greetings ... -
Screen corruption with devices on edge connector (grey +2)Hi, I've recently done a full capacitor replacement and replaced all 16x DRAM chips on my grey +2. Prior to this I would get a corrupted screen…
... DRAM chips on my grey +2.
Prior ... it sitting at the +2 menu screen for several ... DivIDE+, or the PS/2 keyboard cart from Lotharek. ... I'm using the standard +2 power brick (barrel jack) ... board has the original 78S05 regulator and L-shaped heatsink. ... -
Emulating on an OS/2 computer...Hi there. I've got an old portable 486dx2/80 running OS/2... which Speccy Emulator do you recommend for me? / Regards, Lars
Hi there.
I've got an old portable 486dx2/80 running OS/2...
which Speccy Emulator do you recommend for me?
/ Regards,
Lars -
Keys in 48k mode for SpecEmu 1.2?Hello all, Does anyone know how to get the " symbol to appear when in 48k mode on Spec Emu 1.2? As you can imagine, it's pretty essential to be able…
... mode on Spec Emu 1.2? As you can imagine, it ... on my grey case 128k +2. Also having probs with 128k ... -
IT Here !!, The STP Project (MIS 2)Hi Folks, No one seemed to be excited about my previous announcment of a MIS 2 project. Anyway, the name has been changed to protect the innocent an…
... previous announcment of a MIS 2 project.
Anyway, the name ... -
Dragon's Lair 2 - MIS?Dragon's Lair 2 - Escape From Synge's Castle. Not 100% on this, but there doesn't seem to be a TZX of this and it doesn't seem to be on the MIS list…
Dragon's Lair 2 - Escape From Synge's Castle.< ... -
HELP!.. Black Magic 2I have many games en original tapes of spectrum. In WOS "BLACKMAGIC 2 " does not exist, but I have it!!! in an original tape of ZX Spectrum, is simi…
... .
In WOS "BLACKMAGIC 2 " does not exist, but I ... -
HELP!.. Black Magic 2I have many games en original tapes of spectrum. In WOS "BLACKMAGIC 2 " does not exist, but I have it!!! in an original tape of ZX Spectrum, is simi…
... .
In WOS "BLACKMAGIC 2 " does not exist, but I ... -
pc 2 zx, problems!!! :(Ok I've recently bought a cd (not a copy either, I got it from HMC in chester) containing some 6000 games. Now as my spectrum was damaged some 2 yea…
... my spectrum was damaged some 2 years ago I was unable ... load or recond on my +2 spectrum.
Now I ... -
Aspect 4.2Hi there, Does anybody have the Aspect 4.2 Assembler Manual? Where can I get? I used to use this assembler to make my programs, it was a bunch of ti…
... anybody have the Aspect 4.2 Assembler Manual?
Where can ... -
Sound jack on grey +2I have aquired a Spectrum 128 +2 grey model, anybody happen to know the size of the sound jack on the back? Washac:)
I have aquired a Spectrum 128 +2 grey model, anybody happen to know the size of the sound jack on the back?
Washac:) -
128 +2 video connections.I have just got my hands on a Spectrum 128 +2 grey model all in working order, what I need to know is if I take a signal from the CVBS Composite Vid…
... hands on a Spectrum 128 +2 grey model all in working ... -
SPECCY+2 110V POWER SUPPLYI live in the USA and I bought a ZX Spectrum 128k +2 in eBay.com. The problem is that i don't know how to turn it on. All the major US appliances use…
... bought a ZX Spectrum 128k +2 in eBay.com. The problem ...
