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+2 / 128k via RGB on VGA (TFT)On my (bad layouted - I know) homepage [url]http://www.truppel-online.de/[/url] you can see some photos of RGB picture on VGA - TFT screens. I used a…
... there is one 22 Ohm resistor in series then comes one ... 100 ohm resistor to ground parallel to 1 ... again comes one 22 Ohm resistor in series. This reduces output ... -
+2 grey PSU capacitor changeHi I opened up a +2 grey power supply (2.1A max output) unit in order to replace the aged electrolytic capacitor inside, just like I always do with …
... looks like a 12 ohm resistor to the power supply. So ... -
RGB on 48KIs it possible to get better picture (RGB, or at least composite video) from ZX 48K without opening it? (using the expansion port only) I think there…
... video with a 10 ohm resistor, connecting it to the video ... -
Hello everyone. (+ a question.)Hello everyone. I have been visiting WOS since 1999 but I have only recently signed up for the forums. So, first of all, thanks to those who are main…
Which sound fix did you perform? The resistor addition on the transistor leg. The 220R resistor addition in parallel to another resistor (I don't remember which one), or both? -
Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…
... previously mentioned variances due to resistor temperatures, etc.
Well ... -
Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…
... previously mentioned variances due to resistor temperatures, etc.
Well ... -
Hello all, +3 questionHi, Been using this site for ages but I don't know why never joined the forum..? Anyway I have a +2 but just got a +3 it clearly has the sound issue,…
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I've done the resistor on the transistor's leg ... .
Should I do the resistor in parallel to R72 too ... that instead of a 68R resistor (i can't find one ... -
Hello all, +3 questionHi, Been using this site for ages but I don't know why never joined the forum..? Anyway I have a +2 but just got a +3 it clearly has the sound issue,…
... combination of both - the 220R resistor on TR5's emitter (which ... characteristics), and putting a 220R resistor in parallel with R72. The ... outputs (compared to the 75R resistor fix).[/QUOTE]
Isn ... -
Video Capture Cards?Well, looks my new speccys (a rubberkeyed 48 and a grey +2) don't want to play nice with my newish TV's tuner (or by connecting through my VCR, which…
... 128k is to remove the resistor on vertical sync line pin ... instead insert a 100 Ohm resistor from this pin of the ... -
Tea2000Greetings! Prompt analog PAl/NTS Encoder - TEA2000? Has broken it is necessary to substitute, and I have not found the given type in free sale.
... analog input and so a resistor matrix must be built at ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... mode... (I'm assuming that resistor is to pull the pin ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... ULA this way (if this resistor isn't for switching the ... )? Should i just remove the resistor or replace it with wire ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... ULA this way (if this resistor isn't for switching the ... )? Should i just remove the resistor or replace it with wire ... would personally just remove the resistor and see what happens if ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... has an internal pull-up resistor that will drive the input ... machine does NOT have this resistor and it works OK here ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... to have at least one resistor (about 1 kOhm)from PIN ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... do not connect an additional resistor to GND or +5V. And ... /> Try to insert an additional resistor (68 ... 100 Ohm) between the ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... do not connect an additional resistor to GND or +5V. ... /> Try to insert an additional resistor (68 ... 100 Ohm) between ... />
What would the additional resistor (68 ... 100 Ohm) between the ... only). Should i install the resistor before or after the 100uF ... -
Timex 1000 PAL conversionHi, a friend of mine sent me a Timex 1000 from the US. I was prepared for the NTSC/PAL issues so no surprise came to me when i got a shadowy dark scr…
... />
What would the additional resistor (68 ... 100 Ohm) between the ... only). Should i install the resistor before or after the 100uF ... video signal.
The resistor in series to the output ... ).
The 1 kOhm resistor to 5V or GND could ... -
Cro S2008Hi everybody!!! I hope this is right thread? :-) I want to share with you my new project. I call it ?S2008?? The idea was to build Spectrum48K clo…
... part compatibility I changed some resistor values etc.
So ... -
Analogue BeeperThere's been a discussion on foro.speccy.org about multichannel beeper stuff, and since I had the camera out and the scope set up, I set about demons…
... pass filter (i.e a resistor and a capacitor) to make ... -
Ma20 Rgb InterfaceHello everyone , im a bit stumped on this one :) . Im wanting to convert the RGB lead to a scart connector. There was some info on the net regarding …
... ago. There's a duff resistor in it which I haven ... -
Cro S2008Hi everybody!!! I hope this is right thread? :-) I want to share with you my new project. I call it ?S2008?? The idea was to build Spectrum48K clo…
... part compatibility I changed some resistor values etc.
So ... -
128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... of effectively looking like a resistor, they use the characteristics of ... -
128k heat sink - ULA problems and a hintHello, I had two ZX Spectrum 128k with a similar behaviour. One item worked only a short time after switching on and then there were increasing RAM …
... of effectively looking like a resistor, they use the characteristics of ... -
4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?
... fix for that? Capacitor and resistor doesn?t do the job ... -
R.I.P. spectrum 48kRecently one of my 48k rubber key (issue 4) machine bit the dust the other day when I tried to power it on. When powering it on, it gave a weird 'bee…
... , but had to add a resistor to get the right impedence ... -
DivIDE on Spectrum +3Hi all, Is it possible to use the DivIDE on the Spectrum +3 in 128K mode? I have the 'A' jumper set on the board, but my +3 resets into 48K mode wit…
... via resistors to ZX bus (resistor 330 Ohm)
- modify HW ... -
issue 2 board c34 getting hotHi All, Can anyone help with c34 getting hot very quickly? I`ve got an issue 2 board, there is no `buzz` from coil. yet the spectrum initalises to co…
... mentioning R61 a 15 ohm resistor is burning as well. I ... have tested the resistor with a multimeter and is ... -
issue 6a faultyHi All I got issue 6a pcb from ebay with status faulty pcb had bad voltages when I power up I changed tr4 ztx650 and all voltages got back on ic6 I h…
[QUOTE=gorski;341353]after this i will give up [/QUOTE]
Thank you very much for testing the resistor theory. -
Spectrum+ / Spectrum +2 RF Composite HackHello there fellow forum chummies :) I have done this hack to my 48k Specky + [url]http://womblesretrorepairshack.blogspot.com/2008/11/zx-spectrum-…
... Ingo, I ment 15 ohm resistor from the CVBS to the ...