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SAM Coupe - a video problemHi mates. Lately I managed to acquire a SAM Coupe 512K. There are, however, certain problems that - I thought - You might help me with, in a mome…
... connection in cable. Here is schematic:
[img]http://velesoft ... -
48k Issue 4A power supplyHi, I just repaired a 48k Spectrum+ with an Issue 4A board. The computer worked but the picture was mono with bad contrast and bad synchronizing. I …
... the coils. Looking at the schematic there is written a 39 ... -
TQFP Packaged CPLD, Which pin pitch?A quick question for those of you with surface mount experience. I am currently thinking about building a 128k clone, and hopefully have a bit of fu…
... .
Incidentally, does a Schematic exist for Superfo's version ... ? I've found a schematic he did for a 48K ... -
TQFP Packaged CPLD, Which pin pitch?A quick question for those of you with surface mount experience. I am currently thinking about building a 128k clone, and hopefully have a bit of fu…
... .
Incidentally, does a Schematic exist for Superfo's version ... ? I've found a schematic he did for a 48K ... -
Problem with DIY Kempston Joystick InterfaceHello, Decided to try out Yarek's Kempston joystick interface: [img]http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif[/img] Having a few issues.…
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Here is fixed schematic with correct pinout for possibility ... -
Problem with DIY Kempston Joystick InterfaceHello, Decided to try out Yarek's Kempston joystick interface: [img]http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif[/img] Having a few issues.…
... =velesoft;695171]Here is fixed schematic with correct pinout for possibility ... the time to adjust the schematic and especially like the mouse ... -
Covox interfaceI was listening Hooy's latest product "Astral Combat", then program allowed me to change output device between beeper, ay and covox. As I listen thro…
... ...
Here is universal schematic for 8bit D/A stereo ... -
ZX 48 sound card , sam coupe audio chipPrototype done and working (thanks for Velesoft for schematic). [url]https://www.youtube.com/watch?v=RtsW1QZjHVs[/url] PCB done and ordered in PCB …
... working (thanks for Velesoft for schematic).
[url]https://www ... ][/URL][/QUOTE]
My schematic is 100% compatible with connection ... -
Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... /> I actually use the following schematic:
[img]http://www ... .35V. Therefore I think, the schematic I use gives right signal ... -
Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... had a look at the schematic of a mini colour TV ... -
Composite video for 48k Capacitor orientationHello, My multisystem TV is acting up and I'm unable to navigate the menu to tune in the RF signal for my speccys. However the A/V input still works.…
... had a look at the schematic of a mini colour TV ... -
common 128k sound issueHi all, I have got the Speccy bug again, big time! (it comes from time to time) and I'm messing around with my collection of hardware (and buying mo…
... 'm reading from the +2 schematic here, so all the component ... -
Thinking of modding an Atari paddle controller for games like Arkanoid...Hello, Was thinking of trying out a controller mod using an Atari 2600 paddle controller to use with games like arkanoid, Batty, etc... The paddle c…
... ]
Yes. This is its schematic:
[img]http://www.atc ... -
Big brick sized +2 PSU schematic.Might anyone here point me to the schematic for one of these? A bit of searching has found one for something similar, but it clearly isn't exactly th…
What is different? it might be a mistake on the schematic, or something to do with the power rating being different for the +2.
Why do you need the schematic btw? is the PSU not working? -
Echosoft Organ Master Keyboard interfaceLooks like I?m the lucky guy. I managed to buy a Currys Organ Master Keyboard from England. It arrived in very good condition with a booklet and the …
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I did draw the schematic for repair (ignore the numbers ... -
Timex 2048 + Interface 2When playing with ZXC3 cartridge (very nice piece of HW from Paul - highly recommended), I connected original Sinclair IF2 to TC2048 and... no joysti…
... />
I've seen a schematic of it once, but you ... -
Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…
Omg, sorry for the confusion: indeed I drew the schematic in the topicstart too quickly (as I'm at work and didn't have the picture with me I sent to mcleod_ideafix).
SORRY! -
Cascading transistorsMiguel (mcleod_ideafix) alerted me on an aspect of a design I'm working on where I am cascading transistors, which may give problems. This is the par…
... microcontroller, which it's the schematic I've showed to you ... -
Correction of +2 hardware errorsThis is a collection of various pieces of information picked up from various places, including a lot from this forum. I have edited it and reworded i…
... a basic principle in the schematic of the grey +2 unfortunately ... -
Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…
... some errors in the Sinclair schematic diagrams :cry:
So write ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
Schematic of DIVMMC ver 1.0 ... clones are based on this schematic then contain same bug. Incompatibility ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
[QUOTE=velesoft;708315]Schematic of DIVMMC ver 1.0 ... clones are based on this schematic then contain same bug. Incompatibility ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
... don't know; Mario's schematic only shows configurations for KM681000 ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
[QUOTE=velesoft;708315]Schematic of DIVMMC ver 1.0 ... clones are based on this schematic then contain same bug. Incompatibility ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
... don't know; Mario's schematic only shows configurations for KM681000 ... -
What models are repairable these days?I've followed a few threads which are trying to repair the mainboard components of the older 48K models, but it got me wondering - is it possible to …
... amount of errors in the schematic one day and so set ... -
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. …
... /> Anybody fancy drawing up a schematic and construction details of a ... -
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. …
... ]Anybody fancy drawing up a schematic and construction details of a ... and I will draw a schematic and post some instructions.
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. …
... is the provisional circuit diagram / schematic:[IMG]http://farm4.staticflickr.com ...DivMMC clock bufferI have completed the first DivMMC EnJOY today: [url]http://www.worldofspectrum.org/forums/showthread.php?t=44238[/url] But there is a problem with t…
See also DIVMMC+ schematic:
[url]http://www.zxbada.bbk.org/zxmmcp/schematic/zxmmc+_schematic.pdf[/url]
