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+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... how much I study the TEA2000 datasheet, I can not see ... -
Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…
... dram chips, CPU,rom, hal, TEA2000 and some next components is ... -
Spectrum +2 grey 12v railHello everyone, I have this grey +2 with no video from tv. After much reading and testing i realized it was the internal power supply. At the 12v ra…
... . At the 12v rail to tea2000 and serial port i get ... -
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…
... (from pin 6 of the TEA2000).
TR5 provides the vertical ... (applies audio sub-carrier to TEA2000 input) and instead connect this ... -
ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... all capacitors.
The TEA2000 is not getting it's ... an acceptable video signal. The TEA2000 pins 1.3 and 5 ... -
TEA2000 mod for better CVBS quality?Has anyone tried this before? :confused: [URL=http://s1063.photobucket.com/user/JRT480/media/Evenmoreperfect_zpse2505ab9.jpg.html][IMG]http://i1063…
Has anyone tried this before? :confused:
[URL=http://s1063.photobucket.com/user/JRT480/media/Evenmoreperfect_zpse2505ab9.jpg.html][IMG]http://i1063.photobucket.com/albums/t515/JRT480/Evenmoreperfect_zpse2505ab9.jpg[/IMG][/URL]
Sinclair 128k available?Hello there, Spectrum fans! Let me introduce myself. I am from Russia, my name is Dimitri. In the 90-s I was working for a firm producing ZX Spectru…
... coming from the FPGA chip. TEA2000 does not produce any PAL ...ZX Spectrum +2 (grey case) voltage converter circuit oddity.I'm working on repairing one of these and have encountered a possible problem and I'm not sure what I can best do about it, if anything needs to be d…
... be perfectly adequate for the TEA2000 to operate from. So, I ...Spectrum+2 Tape Deck Buzz<p>I've been messing with a Iss3 0500 Spectrum +2. So far I've replaced the electrolytic capacitors, flipped the transistors, add…
... , added a filter to the TEA2000 chip and made the mod ...Newbie Hardware QuestionsI just recently aquired my first Spectrum, a +2, and I'm in the process of getting acquainted with it. Being a newbie I had some questions, which …
... 15uH inductor mod to the TEA2000 and another for decoupling the ...So for my first trick...I'm sure people have already used the AD724 or AD725 on other 8 bit machines, and i know the Harlequin uses the 724, but not seen anyone trying to us…
... off the ULA, bypassing the TEA2000 completely. The AD724 and AD725 ... far better than the aging TEA2000 :)help with broken +2 greyHello, the other day I was trying to record sounds from my grey +2 "sound" socket to an old cassette recorder. Suddenly the screen went to a solid…
... . However, in pin 11 of TEA2000 the +12v are clean, while ...Composite video ghost image on ZX Spectrum 128K +2Hi, I have a ghost image on the composite video out on my ZX Spectrum 128K +2 and have run out of ideas of what could be wrong. Does anybody have a…
... following
- 10V on the TEA2000 12V input with no obvious ... /> - the clock input into the TEA2000 looks terrible to my eyes ... test the chromance filter on TEA2000 pin 10. I tried adjusting ...ZX Speccy +2A - B&W & snowy RF output + other issuesHi All, I am new to this forum and I am back to the Spectrum world after 25 years. Recently I've bought a second hand +2A (+2B board - Z70833 Issu…
... . De-coupled audio (C24) from TEA2000 and connected directly to the ... , no hot IC chips including TEA2000. BUT the Speccy still suffers ...bizarre error on a grey ZX Spectrum+2 - the long search for a small problemHi, I got a ZX Spectrum+2 that worked a bit but crashed while loading or running 128k games. I installed a 128k-test-ROM that told me about RAM fa…
... to circuitries: the video chip TEA2000 and the RS232 chip. First ... supply of the video chip TEA2000. -> Buzzsaw did not run ...Toastrack - faint monochrome displayHi all, I've got a Toastrack with a video issue on both RGB and RF. I get a faint monochrome screen: on one LCD display it is predominately white,…
... checked the voltage to the TEA2000, on pins 9-11, and ...Spectrum +2 grey RF removalHi everyone. If I were to remove RF output from a +2, just intending to keep Composite video out from TEA2000, then all the components that make t…
... keep Composite video out from TEA2000, then all the components that ...Spectrum 128 toastrack imageHi, I have two spectrum 128k toastrack with problems on composite TV out. I have composite mod for both of them, but the image is really bad on bot…
... I have done:
- TEA2000 voltage check and it is ... directly to the output of TEA2000. In this case I get ... on pin 10 of the TEA2000. Nothing happens, same problem with ...New colour palette for Spectrum emulators, 16K/48K/+ machinesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …
... machines, as these use a TEA2000 composite video encoder and don ...New colour palette for 16K/48K/+ machines, based on ULA YUV voltagesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …
... machines, as these use a TEA2000 composite video encoder and don ...zx spectrum +2 RGB cable /// pin out/ voltagesi have a +2 cable that seems to be made well from a well known supplier.. it actually came with a +2A i recently brought but most defiantly is not su…
... on other components ie ULA,TEA2000 . normally i make a cable ...blew up my 128i did it - damn. i accidentally reverted the polarity of the power power supply, so ended up with a blown 5v stabilizer, which i replaced, but there …
... worse thing is that also TEA2000 doesn't work. It means ...+2A external tape loadingGot a +2A on the way and will want to load externally. Now I know that the +2A is basically a stripped down +3 with a tape deck instead of a floppy …
... actually sits just off the TEA2000 chip on a +2A behind ...wantedI need a booting floppy disk made by W95B or later. I need it to boot before running powerquest drive image to have access to fat32 disks. If someo…
I have the capacitor now. I have a dead tea2000 ic. Anybody want to sell one for a nominal fee? They are on all spectrums.wantedI need a booting floppy disk made by W95B or later. I need it to boot before running powerquest drive image to have access to fat32 disks. If someo…
I have found a TEA2000 for a reasonable price. There is many items people might want at this retailer. [url="http://website.lineone.net/~harrison.elec/index.htm"]http://website.lineone.net/~harrison.elec/index.htm[/url]
Fraser.My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…
... the process of changing the TEA2000 PAL encoder with another circuit ...Connecting a PC's VGA monitor to speccy's RGB...I've searched the entire web for this... can anyone help me? I want to talk with my speccy...
... are based on the existing TEA2000 IC inside the spectrum (including ...Is the Spectrum +2 notorious for having bad RF output? Are you Happy with yours?Hello, Are you happy with your Spectrum +2 using RF? Does it give satisfactory picture. Is the Spectrum +2 notorious for having bad RF output? If s…
... all comes down to the TEA2000, its a crap chip. The ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... be wrong? If it is TEA2000 IC then why I do ...Help with dead Spectrum +2aHello. My Spectrum +2a died some time ago. It was powered on, I looked away and next time I looked at it, screen was black. I have replaced the 4 r…
Are you using the modulator output or the monitor socket? The TEA2000 IC is essential for the modulator. I had to replace one once. Is there sound at the headphones socket when pressing the up or down cursor buttons?
