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Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…
... with them and checking the voltages etc, thanks to you guys ... -
Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…
... with them and checking the voltages etc, thanks to you guys ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
ZTX 312 at TR1, TR2, TR3 and TR6 on an issue 3B board. -
Interface rom - Need help to dump itHi, I have temporarily an interface that is similar to a multiface. It has an NMI button and displays a menu where states can be saved and pokes ent…
... to do, measure a few voltages and repair the internal PSU ... -
Interface rom - Need help to dump itHi, I have temporarily an interface that is similar to a multiface. It has an NMI button and displays a menu where states can be saved and pokes ent…
Interface rom - Need help to dump itHi, I have temporarily an interface that is similar to a multiface. It has an NMI button and displays a menu where states can be saved and pokes ent…
... to do, measure a few voltages and repair the internal PSU ... with a hairdryer.
Voltages were ok. Is it possible ...The FCC and their warnings.When look at the underneath of many electronic appliances I often see an FCC warning that goes somthing like. [indent]"This device must accept inte…
Speccy 128 QuestionMainly for the experienced speccy resurecters around these parts. Have you ever had a Speccy 128 with a borked TEA2000 video chip? The reason I ask…
... so far tested that the voltages are all ok, and keyboard ...To Winston , diag-interface.Hello to all, first, sorry for my english i'm from spain and my english is very poor. Wiston, thank you very much for your great work "diag-interface…
... the presence of the right voltages on all the sockets in ...Who has an Issue 1 or Issue 2 Spectrum??Do you have an Issue 1 or 2 Spectrum (ie machines with 5C102E and 5C112E ULA's) ??? You're help is needed! PLEASE SEE THIS THREAD: [url]http://www.…
... "listen" in on rapidly oscillating voltages etc. Not sure if I ...Who has an Issue 1 or Issue 2 Spectrum??Do you have an Issue 1 or 2 Spectrum (ie machines with 5C102E and 5C112E ULA's) ??? You're help is needed! PLEASE SEE THIS THREAD: [url]http://www.…
... "listen" in on rapidly oscillating voltages etc. Not sure if I ...The terrorists have wonWhen a man collapses in a diabetic coma, instead of the bus driver assuming the man is ill, but assumes he's a terrorist (and gets the police in who …
... to detonate (hello, large electrical voltages and detonator circuits!) Tasing someone ...It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... JTAG, and need no funny voltages, so are fully in system ...Ethernet blog updated......today, we send our first packet and run into a bit of a gnarly snag: [url]http://spectrum.alioth.net/doc/index.php/Current_events[/url]
... to not need two supply voltages.
The W5100 should ...Spectrum +2 power supply - voltages on each pin..?My +2 suddenly stopped working yesterday. It was working fine earlier in the day and now the power light will not go on, nor will the tape drive and …
[url]http://www.hardwarebook.info/ZX_Spectrum_Plus3_Power[/url]
I had a PSU with some strange voltages... it was the fuse inside.+2 power supply on standard SpecciesHi! I have a few 48K speccies, and I run them using a shitty chinese multi-voltage power supply. I've heard some horror stories of that power suppli…
... plain resistors to drop the voltages to the desired level, or ... no proper regulating for keeping voltages steady when varying current is ... harder to produce the internal voltages, which again generates more heat ...sinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …
... and the +5V regulated supply. TR6 is used to prevent the ...sinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …
What about the other voltages in the power supply ?
Issue 6a:
C44 should have +12 V
C45 should have +12 V
D19 (anode side) should have -5 Vsinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …
... .jpg[/url]
all voltages is fine :(
Jose_Leandro ...Anyone after 4164s...If anyone's after 4164 RAM... ... I'm in Houston at the moment, and EPO has some 4164 RAM in the shop, 100, 150 and 200ns variety, for $1 each. If …
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Cannot measure the pins' voltages right now (and no datasheets ...Eprom blowerdoes anyone know a site with plans for an eprom programmer project that'll blow 27C256s. I attempted to build one called Kisseprom, but the software …
... have a bad Eprom. Or voltages were different when you did ... idea as to what VCC voltages are used and when, which ...Darkening of aging CRT monitors / PowerstripI'm using a CRT that I got way back in 1999, and it's still working, but the screen seems to have gradually darkened over the past few years. I think…
... , be careful, there are lethal voltages inside (especially watch capacitors).ZX48K bad videoI have 48K with bad RF video output: [URL="http://www.fileden.com/files/2007/6/28/1218776/Amiga/ZX48K_IMG_1219_up.jpg"]photo[/URL] It seems to work o…
... .
I mesured the voltages on those two inputs to ...Spectrum ULA replacement!Hi gang.. The Speccy 48 ULA Replacement is *almost* here ;) There has been lots of activity in building the CPLD board, sorting out some irritating…
... circuit, and whilst checking the voltages at the 4116 I blew ...broken ZX 48K, help neededI have a broken down ZX 48K :cry: The keyboard membrane is almost completely destroyed, and this is what screen shows on power-on: [IMG]http://www.h…
... .
First, check the voltages to the lower RAM (4116 ...One's speccy is unwell, can anybody help?Hi chaps! This would be my first post here, so hello to all :smile: I've got a 128+ heatsink speccy that seems to have a display issue whereby after…
You don't have a known working Speccy to try to swap ULA's with ?
Anyway, the voltages from the power-supply should always be checked when there's no obviously fault.Is it possible to use external power supply for +-12; +-5 for ZX SpectrumRecently I acquired a damaged Sinclair ZX Spectrum, issue 3B. According to the maintenance manual I have to replace TR4 and TR5. These type of transi…
... into which supplied all the voltages required and made it easy ...Is it possible to use external power supply for +-12; +-5 for ZX SpectrumRecently I acquired a damaged Sinclair ZX Spectrum, issue 3B. According to the maintenance manual I have to replace TR4 and TR5. These type of transi…
Not sure if this helps - [URL="http://www.worldofspectrum.org/SpectrumRepairGuide/#icvolt"]list of voltages at various pins[/URL]Is it possible to use external power supply for +-12; +-5 for ZX SpectrumRecently I acquired a damaged Sinclair ZX Spectrum, issue 3B. According to the maintenance manual I have to replace TR4 and TR5. These type of transi…
... .org/SpectrumRepairGuide/#icvolt"]list of voltages at various pins[/URL][/QUOTE ... , when I start checking the voltages. What occured is this:
+3 Audio hates me with a passionHihi Since nobody seemed to have a spare +3B board, I've been trying to replace the audio entirely, aiming for a speaker inside the machine Since p…
... would be to test the voltages of TR5. Measure the Collector ...
