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Noisy display faultI've been given an Issue 3 48K Speccy PCB which is in good working order except the main display area has slight changes of shade loosely following a…
... of sound from the switching PSU coil).[/QUOTE]
cap in the video power ... in its way to cap heaven. ***quick schematic check ... a 470uF (25V) electrolytic cap in parallel with C45. ... a problem in the PSU. Take voltage measures along ... -
Noisy 2A displaymy 2A gives a fairly good display until it has to generate sound or other cpu work, which interferes with the signal, giving some "cloudy" effects …
... do when using an "official" PSU.
You'd ... to be plugged into the PSU to get the interference, ... the fact the PSU was connected to the mains ... and know what you're doing before you mess ... a normal 200 Watt PSU is capable of pushing out ... -
+3 soundhello there, just a quick-fire question today. i'm kinda keen on the idea of using my +3 quite a bit, particularly if i bother to to actually sort …
... inclined to agree with death re: tripad board.... my previous soldering ... the chart, and the neccessary cap's were definately the right ... -
Power issues for multiple Speccies - questionWould like your opinions on some power issues I will be coming across soon! I am building up a collection of working Spectrums to form a music Midi …
... +5V line and a PC PSU will not supply anything like ... 't usually matter unless you're gonna use the RS232/Midi ... the supply cables inside the PSU (Grumpy old man alert here ... supply from an old PC PSU. It's a complicated modification ... -
advice needed pleaseHi everyone, Back in the day, used to own a zx81, spectrum 48k and a +2 whilst growing up. I have tinkered around with some of the emulators (zx32 a…
If we're comparing Speccy Boot Sale Bargains, ... a boxed 48k with original psu and leads, plus a boxed ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... forum knows damned well they're in for a whupping.
PSU).
One thing that ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... forum knows damned well they're in for a whupping.[/quote ... was down to a duff PSU).[/quote]
Funny how you ... -
Gp2x?I want some opinions on the GP2X as I'm thinking of getting one for Christmas. Is it worth the money? What are its strengths/weaknesses? Hope y'all …
... .0) and also a new 'cap' so the joystick is much ... - Great emulator, can use Kempston, re-define the keys etc
kempston and/or psuhi there, just wondering if anyone had a spare kempston adaptor they wanted to give a good home? i will pay a couple of quid + postage for it, and …
... the plug off your +3 PSU! (I thought it was moulded ... I don't think they're in the manual. But if ... not they're certainly on the AMSTRAD +3 ... find the pinouts for the PSU din plug :-( I thought they ...kempston and/or psuhi there, just wondering if anyone had a spare kempston adaptor they wanted to give a good home? i will pay a couple of quid + postage for it, and …
... the plug off your +3 PSU! (I thought it was moulded ... I don't think they're in the manual. But if ... not they're certainly on the AMSTRAD +3 ... find the pinouts for the PSU din plug :-( I thought they ...replacement +3 psuok, who would be kind enough to help an idiot build a replacement PSU for the +3 / +2a , from a PC power supply? Guesser has already helped out a gr…
... have a few of adapted PSU's for a cd32 and ... for a1200s) was that PC psu's generally only supplied the ... 1.25 from the +3 psu. guess i'd be ok ... using these temporarily?
re: the P.G / PS-ON ... , i think you're gonna have to go into ...replacement +3 psuok, who would be kind enough to help an idiot build a replacement PSU for the +3 / +2a , from a PC power supply? Guesser has already helped out a gr…
... on exactly where/what those cap's connect to.... (i did ... "help an idiot build a psu" ) :lol:My Dell TFT Monitor deadMy Dell E171FPB monitor is dead... it wont turn on... even the LED wont come on.... I've checked the usual...cable and fuse.... I am trying to dism…
Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... somebody has a spare they're willing to part with...
cap could fail or worse still ...Loose power connector.Hi all, the power connector on my 128 (black one with toaster on the edge) is getting loose - move cable = crash - nifty reset but not desirable. Wha…
... it.
If you're prepared to have a go ... , because I use the same psu for all my speccies.Spectrum +2 No TV PictureHi, As a retro collector in Australia I thought it was time to check out a real Spectrum as they were never popular here. So I bought the Spectrum +…
... VDU to see what you're doing, the only way you ... 're gonna find out for sure ... the other wire of the cap is your composite video output ...Broken grey +2I have a grey +2 and the problem is it doesn't seem to be outputting anything via the modulator ( don't know about the monitor port ) when i turn the…
... 's almost certainly a PSU issue since that diode is ... wired directly to the PSU. It's very unlikely ... all the current from the PSU, slowly at first, then ... think it's your main PSU, the power cable to ... jack. Maybe even the PSU socket needs to be re-soldered.Just got a Spectrum +2BThis is the first Spectrum I've ever used or owned. I got it without a video cable or power supply. I wired up a proper video cable, and I altered an…
... the cap (for instance, if you need 9v, and the PSU makes ...Just got a Spectrum +2BThis is the first Spectrum I've ever used or owned. I got it without a video cable or power supply. I wired up a proper video cable, and I altered an…
... =DEATH;171671]But then you're pushing the little 2A reg ... />
If the Speccy's PSU is rated at 2A as ... supply and a home made PSU that uses a regulator rated ... rating printed on the Spectrum PSU is the limit rather than ...Response to the BBC Hit piece. please ignore if affended:)[snip] Conspiracy theory [/snip] Ignored as requested in the title.
... "The Daily Mail" if you're a narrow minded biggot, or ... work for you if you're a manic depressive.
cap, also featuring a red armband ...Dead Spectrum +Hi all, I've recently dug out my old Spectrum + with the idea of repairing it. When I last looked at it, when I was much younger, I was soldering a …
... /> Power - Centre pin of the PSU is negative, the outside barrel ... unless you know what you're doing :)Dead Spectrum +Hi all, I've recently dug out my old Spectrum + with the idea of repairing it. When I last looked at it, when I was much younger, I was soldering a …
... see "test the onboard PSU" and see how to test ... the PSU section of the board. ... />
Test the onboard PSU - do this by checking that ... Speccy faults. Whilst you're doing this and have the ... a change, check, then re-check your work for mistakes ...toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…
This is a re-post of something I ... , see "test the onboard PSU" and see how to test ... br />
Test the onboard PSU - do this by checking that ... of Speccy faults. Whilst you're doing this and have the ... made a change, check, then re-check your work for mistakes ...5v Transformer.I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?
... 't want is for the PSU to deliver 5V only when ... drawn from it).
PSU's that are not regulated ... /> If you are sure that PSU is 5V off load as ... twin drive set-up you're doing?5v Transformer.I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?
... dip too far since you're only gonna use a third ... you have a floppy drive PSU!5v Transformer.I've got a 5v 3A transformer, would this be ok to use with two 3.5 inch floppy drives?
Recieved - and answered.
I've got a 12V@1A DC PSU here, used to run my old router on it. You're more than welcome to it.
What set-up are you hoping/planning for there?Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
[QUOTE=Marcelo;182857]If you're making the interface's schematic ... x ceramic disc (220nF) decoupling cap for the flash
zx spectrum 48k powerpackhi just a quick question for you guys. i have just bought a 48k rubber key'd speccy without a power supply. i have found a power supply in my spares …
Would a Megadrive 1 PSU be OK? They're negative polarity 1.2A / 9v I believe...
I think the connector may be the same too.zx spectrum 48k powerpackhi just a quick question for you guys. i have just bought a 48k rubber key'd speccy without a power supply. i have found a power supply in my spares …
... ]Would a Megadrive 1 PSU be OK? They're negative polarity 1 ...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…
... , than it's 80% PSU's fault.
If ... you're in a bad luck and transformer in your PSU died ... easier to find another 9V PSU.
3. If your ... okay, connect your disassembled PSU to the AC power and ... , check electronics in your PSU. I have never seen original ...
