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PSU unit spectrum 128k +2b 6 pinout DINHello everybody! I have spectrum 128k +2B but I don't have the 6 pin PSU and I can't find it anywhere. Can you anyone tell me where can I buy this PS…
[QUOTE=groove;426515]But the +12V of the PC PSU works @ ... ?
Spectrum actually works with +12V @ 0.7A and +5V@ 2A ... -
Spectrum 128+ (No TV picture)I got a Spectrum 128+ which is not generating any picture. I checked the TEA2000, and it gets not 12 Volt, but only 1.4, so this is the problem, I gu…
... and 9V are all okay, -12V is in reality +11.4 ... /> A repaired one +128K without +12V and I had to change ... -
Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…
... -5V, Pin 8 should be +12V, Pin 9 should be +5V ... . If -5V or -12V are absent or much lower ... -
Someone can help me to fix my Zx Spectrum?I did a video about the startup: [url]http://dl.dropbox.com/u/1566495/ZXSPECTRUM03.mp4[/url] I have replaced the ULA with a working one (same proble…
[QUOTE=gibs;431121]... 4/ how to check TR4/TR5 ?[/QUOTE]
When -5V and +12V (at 4116) are present then both transistors work OK. So you checked already. -
Crappy video in +2B/+3Maybe it's not a failure in my ZX Spectrum, but I need some advice... I've got some spectrums (a ZX Spectrum +, two spanish ZX Spectrum +2B and a mo…
... 5V en lugar de a 12V
- A?ade un condensador ... colector to 5V instead of 12V
- Add a capacitor of ... -
Crappy video in +2B/+3Maybe it's not a failure in my ZX Spectrum, but I need some advice... I've got some spectrums (a ZX Spectrum +, two spanish ZX Spectrum +2B and a mo…
... 5V en lugar de a 12V
- A?ade un condensador ... colector to 5V instead of 12V
- Add a capacitor of ... other mod is connected to +12v. Would help connecting to TEA2000 ... -
Midi out on a ZX SpectrumYears ago (may be over 15 years...) I soldered a small adapter that lets a keyboard or synthesizer connect to the ZX Spectrum 128K's midi/RS232 port.…
... the circuits that requires 12v, check that the 12v line from the ... -
Midi out on a ZX SpectrumYears ago (may be over 15 years...) I soldered a small adapter that lets a keyboard or synthesizer connect to the ZX Spectrum 128K's midi/RS232 port.…
... the circuits that requires 12v, check that the 12v line from the ... !
It is not the 12V that is missing but the ... -12V... I am using a small ... power connector also has a -12V line...
So, other ... -
Midi out on a ZX SpectrumYears ago (may be over 15 years...) I soldered a small adapter that lets a keyboard or synthesizer connect to the ZX Spectrum 128K's midi/RS232 port.…
... it wouldn't have the -12V required for the serial ports ... -
+3 broken with broken disk drive.Ok, so today at a car boot sale I picked up a Spectrum +3 for ?5. It's in good condition, powers up and works well. However, the disk drive does not…
Broken or upgraded ZX Spectrum 48kHello First i want to say hello to everybody. I have a new ZX Spectrum 48k in my collection. Seller said that it is broken (no picture). I have this…
... , and the supply voltage for +12V indicated above, is definately sufficient ...Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
... the coil is buzzing. The +12v is now good (can't ...component out?I would like to connect ZX48K to plasma TV with component cable. I read somewhere that signals are on the expansion edge connector. Do I need somethi…
... Out without the need of +12v.[/QUOTE]Use the S-video ...component out?I would like to connect ZX48K to plasma TV with component cable. I read somewhere that signals are on the expansion edge connector. Do I need somethi…
... use an external PSU for +12v as well as for +5v ...My Spectrum has gone a bit dud since doing some Mods, HELPMy father in law and I did some modifications to my 48K rubber key Spectrum last weekend, and now it seems to be very keen to crash, especially when …
... a little harder to produce +12v for the DRAM and video ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
Speccy needs +12v for LM 1889 which is ... YPbPr converter.
Then, +12v are used by the first ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
[QUOTE=Valentin;439521]Speccy needs +12v for LM 1889 which is ... YPbPr converter.
Then, +12v are used by the first ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
[QUOTE=Valentin;439521]Speccy needs +12v for LM 1889 which is ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
... negate the need for the 12v supply circuitry can possibly cause ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
... negate the need for the 12v supply circuitry can possibly cause ... input is already around 11~12V if you're using the ...Remove +12 Volt itemsWhich items can be removed on a ZX48K issue 4b PCB if I don't need the +12 Volt? Micky
... acts as filter for the ~12V video DC supply, and extra ...Alternative speccy power supplysI know all us would have our speccys with the original power supply,but often i would see a distress call from people who got speccy from ebay but on…
... three voltages (+12, +5 and -12v), and you'll have enough ...Electronics Help!I've brought a little universal amplifier from Maplins which is to go into the arcade machine I have, so power its speaker from the computers line ou…
... need a nice clean DC 12V at 800mA for this to ...Electronics Help!I've brought a little universal amplifier from Maplins which is to go into the arcade machine I have, so power its speaker from the computers line ou…
... using regulated?. If unregulated, a 12V supply could easily have exceeded ...Electronics Help!I've brought a little universal amplifier from Maplins which is to go into the arcade machine I have, so power its speaker from the computers line ou…
... have tried it with the 12v psu in the photo, and ...Electronics Help!I've brought a little universal amplifier from Maplins which is to go into the arcade machine I have, so power its speaker from the computers line ou…
... have tried it with the 12v psu in the photo, and ...+3 ProblemsI have been having a few problems with my +3 and I am wondering if anyone can help or give me some advice: 1. I have 2 blank disks which I have save…
... your problem. You could feed 12v through the scart connector, as ...+3 ProblemsI have been having a few problems with my +3 and I am wondering if anyone can help or give me some advice: 1. I have 2 blank disks which I have save…
... says the problem is that +12V on +3 RGB connector are ...