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Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... PIN 20: 1.09V
+12V on DIN 1: 12.3V ...
+12V on SCART PIN 16 (Blanking ... , mine outputs 1.09V.
+12V line seems to be correct ... -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... I'll temporarily take the +12V with R150 resistor from +2A ... -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... drops. I also tested connecting +12V with R180 resistor from my ... -
The Sadness of my Decaying Speccies.I've been avidly collecting ZX Spectrums since the late 90's and whilst at the time of the late 90's and early millennium my Spectrums and associated…
... must turn off last. If +12v and +5v are supplied before ... arrives some microseconds before the +12v and -5v supplies (generated by ... momentarily shorting the -5 or +12v outputs at the edge connector ... M1 is right next to +12v). Fortunately, the Ferranti ULA turns ... -
i am currently listening to........as i couldnt seem to find the old one, i didnt look that hard :P ive started a new one right after somebody asked me for some slayer ive rediscovere…
... *Cocteau Twins and *This Mortal Coil. ( *another two of my favourite ... -
+3 issues....Hello All I came by a couple of +3's on ebay and I'm having issues with them. Since I only ever owned a rubber key, thought someone might be able to…
A variable inductor would be a coil with an adjustable core inside (usually something you can screw up or down). I suppose guesser means the adjustment 'knob' on top of the video modulator? (if there is one, that is). -
+3 issues....Hello All I came by a couple of +3's on ebay and I'm having issues with them. Since I only ever owned a rubber key, thought someone might be able to…
... variable inductor would be a coil with an adjustable core inside ... -
i am currently listening to........as i couldnt seem to find the old one, i didnt look that hard :P ive started a new one right after somebody asked me for some slayer ive rediscovere…
... , lush, throwing muses, this mortal coil, thievery corp, gusgus, colourbox, the ... -
Help with broken SpectrumHi There, Just received a ZX Spectrum computer. It's an issue 3B (48k version). When I power it up (9V centre pin -V) nothing happens. It's complete…
...
Pin 8 (lower left) = +12V
And report back ... -
PC trouble (again!)My PC is in a bit of a state at the moment. It all started about a week ago. For a long while now, the fan on my graphics card has made a loud whirin…
I know it may be a stupidly obvious question, but if it's a removable graphics card, is it one that requires a 12v power molex to be connected to it? And if so, did you remember to plug it back in? -
PC trouble (again!)My PC is in a bit of a state at the moment. It all started about a week ago. For a long while now, the fan on my graphics card has made a loud whirin…
... it one that requires a 12v power molex to be connected ... -
Help needed +2 pleaseI have a 128k+ that when powered up through the rgb or aerial connection just shows a black screen. But I can still see the list of options and run d…
This is usually because 12V is not being ... the TEA2000. Check the 12V pin of the power supply ... is actually supplying 12V (under load if possible) ... the machine and test +12V on the appropriate pin of ... grey +2 and the +12V supply is not present it ... -
zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... /> Check for the presence of 12V at the TEA2000.
12V voltage to switch the RGB ... sets. So check first the +12V voltage. -
Help needed +2 pleaseI have a 128k+ that when powered up through the rgb or aerial connection just shows a black screen. But I can still see the list of options and run d…
... ]This is usually because 12V is not being supplied ... the TEA2000. Check the 12V pin of the power ... supply is actually supplying 12V (under load if possible) ... the machine and test +12V on the appropriate pin of ... grey +2 and the +12V supply is not present ... -
Help needed +2 pleaseI have a 128k+ that when powered up through the rgb or aerial connection just shows a black screen. But I can still see the list of options and run d…
... internally. Check you've got 12V on the appropriate pin of ... because it's not getting 12V. And if you haven't ... got 12V, I would be willing to ... -
Help needed +2 pleaseI have a 128k+ that when powered up through the rgb or aerial connection just shows a black screen. But I can still see the list of options and run d…
I have returned from my friends house and the TEA2000 is only getting 1.3vts on the 12v pin. So it looks like the TR4 s suspect as Winston as pointed out. -
Recapping your SpeccyHas anyone ever done it? I have several vintage amps, tuners, cassette decks that have been recapped. So just wondering are there many on WOS who ha…
... it and found that the 12V wasn't stable. While looking ... -
Recapping your SpeccyHas anyone ever done it? I have several vintage amps, tuners, cassette decks that have been recapped. So just wondering are there many on WOS who ha…
M1 is next to '12V unregulated' so the slightest misalignment ... . The other neighbour of '12V unregulated' is '12V'.
When I started ... -
Recapping your SpeccyHas anyone ever done it? I have several vintage amps, tuners, cassette decks that have been recapped. So just wondering are there many on WOS who ha…
... ;482140]M1 is next to '12V unregulated' so the slightest misalignment ... . The other neighbour of '12V unregulated' is '12V'.[/QUOTE]
It ... probe it briefly shorted against 12V).
However, on re ... -
zx spectrum ULAis the ULA in the 16K the same as in the 48K could you take the 16K ULA and place it in a 48K I ask this because i have a speccy thats dogy with th…
... , and taking with it the 12v and -5v supply, and subsequently ... . If it isn't producing 12v and -5v, then the 4116 ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... 1 (GND) and pin 6 (+12V). The code at the following ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... probably have to detach the +12V from the serial end as ... the PC, that would be +12V to RI (Ring Indicator). It ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... probably have to detach the +12V from the serial end as ... the PC, that would be +12V to RI (Ring Indicator). It ... -
Opus Discovery 1 problem insideHi folks, when I opened my Opus Discovery 1 I have probably wrecked a regulator that is connected to the mainboard by three cables. Regulator 2 is wi…
Indeed thats LM317 at Conrad.
Best thing to do would be measuring if 5V and 12V are present first, plus a thorough check of the PCB. Assuming that Spectrum is working OK on its own.... -
ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …
... the internal voltages (-5V, 5V, 12V) checked. -
ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …
... is ok (ula is working), +12V is ok, because colors are ... -
Opus Discovery 1 problem insideHi folks, when I opened my Opus Discovery 1 I have probably wrecked a regulator that is connected to the mainboard by three cables. Regulator 2 is wi…
... QuickDOS added.
The 12V for the floppy drive is ... -
Do ULAs die?Thought I'd start this thread as people often think their ULA is dead, when it's actually the RAM or power circuits. Searching the forum in the futur…
... anyway)[/QUOTE]
bad 12v/-5v circuit will kill the ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... cut and insulated to stop +12V being sent to the PC. -
ZX Spectrum+ Problem - Need help -Greetings guys, I bought one ZX Spectrum+. This is what displays on the TV: [IMG]http://d.imagehost.org/0371/17102010_001.jpg[/IMG] When I switch …
... is ok (ula is working), +12V is ok, because colors are ...
