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Issue 2 colour problemsHey all, I've got a slight colour problem with my Issue 2 Spectrum, as can be seen below: [IMG]http://www.bennyalford.com/images/issue2a.jpg[/IMG] …
... your Spectrum has its original electrolytic capacitors, it's probably a ... -
PlusDlite prototype/first batch is here![IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_143221.jpg[/IMG] [IMG]http://benophetinternet.nl/hobby/vanmezelf/20130605_153930.jpg[/IMG] …
A good quality low ESR electrolytic (say 470uF or 1000uF) in ... ). Follow it with a 220uF electrolytic in parallel with a 100nF ... -
Whistling power supplyThe 2A power supply I've been using for my speccies for the last 8yrs or so has in the last few days started giving a high pitched whistle continuous…
... type and one or more electrolytic capacitors are dying... This type ... some TLC and fit new electrolytic capacitors ;)
[B][I ... -
Whistling power supplyThe 2A power supply I've been using for my speccies for the last 8yrs or so has in the last few days started giving a high pitched whistle continuous…
... type and one or more electrolytic capacitors are dying... This type ... some TLC and fit new electrolytic capacitors ;)
[B][I ... -
48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…
Try replacing all the electrolytic caps first. There are many topics in the forum describing how. The caps dry up due to age. If it starts up ok and then reset, it is normally a cap problem. -
48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…
... voltage is supplied to an electrolytic cap.
Details:
[URL ... -
48k Rubber Key Spectrum ProblemI'm testing my mate's spectrum that hasn't been used since the late 80's. Unfortunately, it seems to keep randomly resetting itself (like pressing th…
... will be for dried up electrolytic caps, which will get up ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... to renew old 1980's electrolytic capacitors.
A test ... -
ZX-Spectrum 16KWanted working 16K machine for reasonable price I'm located in NY, U.S.A. Thanks!
... be installed.
All electrolytic capacitors have been replaced with ... -
Spectrum +2(grey) rf problem not tuning inHi lads, first of all a quick intro. Im a speccy enthusiast in Ireland, had my first speccy when i was seven in 1987(grey +2). Eventually it got repl…
... line and also all the electrolytic capacitors (except one because I ... -
The right toolsAs i am going to pick up a hobby of fixing spectrums I wanted to know whats the right tools for the job. Like what wattage should the soldering iron …
... of general purpose components, axial electrolytic capacitors, general purpose transistors (BC547 ... -
Cassette Recorderlooking for a good cassette recorder for a zx Spectrum + Must be working and has to have a ear and mic socket. thanks
... will almost certainly need its electrolytic capacitors replaced with new ones ... PDG too, but again the electrolytic caps will be in need ... -
Composite mod display problemI'm fairly ham-fisted with a soldering iron but I thought I'd have a crack at the composite mod on two of my 48K rubber keys, as I'd already opened o…
... .
Change the 22uF electrolytic that's C25 (I think) -
16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…
... that fail etc.
Electrolytic capacitors (made from 1970 onwards ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... ] you could buy a 1uF electrolytic capacitor rated at 10V, that ... -
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
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It's likely other electrolytic capacitors have problems too and ... -
ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…
... tests and replacing all the electrolytic capacitors, I've just turned ... -
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... change a 30 year old electrolytic on sight and not even ... to add here, that an electrolytic capacitor doesn't exhibit it ... -
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... some errors.
Second, with electrolytic capacitors, the voltage is the ... , so as the development of electrolytic capacitors continues, the case size ... /Electronic-Components/22uf-25v-Axial-Electrolytic-Capacitor-11-0125"]here[/URL ... -
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... . Apart from replacing all the electrolytic capacitors upfront and perhaps trying ... -
Issue 4A repair attemptI think I need some help. I have a nice Issue 4A main board here, which does not give out any video signal. I checked some voltages (the ones that se…
... . Apart from replacing all the electrolytic capacitors upfront and perhaps trying ... -
Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…
The 100uF 25V electrolytic capacitor that is fitted nearest ... pads between this 100uF 25V electrolytic capacitor and the 7805 voltage ... -
Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…
... pads between this 100uF 25V electrolytic capacitor and the 7805 voltage ... have no new 100uF 25V electrolytic capacitor here,
I can ... -
Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…
Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …
... replacing/having replaced all the electrolytic capacitors. When old and dried ... if they're old. Old electrolytic capacitors are also a common ...Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…
... old/maybe defective 100uF 25V electrolytic capacitor, the interface was not ... got an new 100uF 25V electrolytic capacitor
and one 100nF ...Plus D Voltage Regulator OrientationHi, I?ve got a Plus D Disc Interface circuit board without case from a friend. Sadly he sends it to me without care for proper packaging. So it arr…
... : Put a new 100uF 25V electrolytic cap in, with the suggested ...Keyboard has a life of its own?I just received a Spectrum+ Issue 4S, where I had to replace the MIC connector and I also did the Composite mod. So far it works just fine, but when …
... are often caused by faulty electrolytic capacitors or dry solder joints ...Repairing a torn trace on an Issue 2 PCBI've found what I think could be the reason for my Issue 2 board not working properly... There is a torn PCB trace beneath one end of where a new ULA…
... I have replaced all the electrolytic caps (apart from C34 which ...