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Spectrum +3 FavourCan a kind soul with a multimeter and a +3 measure the resistance on the power socket between the 5V and the ground? I have a dead +3 that only has 0…
... , check C4 for shorts, and IC2. If a voltage higher than ... present at the input of IC2, but 12V is not present ... at its output, replace IC2.
If voltage at ... -
PlusD mini - production startedI'm developing a PlusD clone, with some features stripped to make it very affordable. The real PlusD and German clone have an 7805 regulator, but I …
... :-
IC1 - WD1772-PH
IC2 - M2764AFI
IC3 - HM6264LP-15 ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... , pals, ic5 and half of ic2.
This block is the ... the other half
of ic2 which generates the clk signal ... -
Wanted: DK'Tronics keyboardAnyone here wants to sell his/her DK'Tronics keyboard? [url]http://www.zx81stuff.org.uk/zx81/hardware/d/dkTronicsKeyboard.Front.jpg[/url]
... is they are shipped with interface1+spectrum+microdrive = will go for ... -
ZX Spectrum and Interface 1 microdrive connectorsI think the following is correct: IF1 microdrive connectors are 8pin (slot 3 notched) 2.54mm pitch and Speccy Expansion Bus is 28 pin (position …
... come by. Whereas lots of Interface1/Microdrive combos were sold (including ... -
2013 projects: new PlusD, DivIDE and MultifaceI have written about this before, but as I want to let these project be influenced by your opinions, I thought to create a separate topic about it. …
... (+3, 128K models, PlusD, Disciple, Interface1, etc) hardware with the Multiface ... -
Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…
Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…
... 9,10 and 11 of IC2 are really connected together YES ...Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
... log.1 = enable address decoder IC2(LS30) via input pin 12 ...zx spectrum without TR6 (ZTX313)Hi is it possible that a zx spectrum 48 issue 2 works without TR6 (ZTX313)? Should be very interesting.
... +12V to pin 30 on IC2 and diode IN4148 from pin ... 30 of IC2 to pin 33 of IC1 ... as follows:
Base to IC2, pin 30.
Emitter to ... , pin 33.
Collector to IC2, pin 11[/B][/I]
zx spectrum without TR6 (ZTX313)Hi is it possible that a zx spectrum 48 issue 2 works without TR6 (ZTX313)? Should be very interesting.
... +12V to pin 30 on IC2 and diode IN4148 from pin ... 30 of IC2 to pin 33 of IC1 ... as follows:
Base to IC2, pin 30.
Emitter to ... , pin 33.
Collector to IC2, pin 11[/B][/I]
One more grey +2 with video problemsI guess I need your help again to hopefully be able to do some proper troubleshooting myself one day. Here I have a grey +2, which could be a bottom…
... . It could be IC3 (MC1488 ), IC2 (TEA2000), T1, C22, C23, C41 ... . If not, then it is IC2.
If you find ...Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…
... then the 7812 linear regulator (IC2) is probably destroyed.
If ...+2 Grey video issueSo far ive replaced TR4, TR5 (and correctly orientated them) and seperated the audio from the video, still I have this; [youtube]mZZWOXRs_Zk[/youtube…
Is the +12V Analog (measured across IC2, TEA2000 pin 11 to ground/0V) okay?
Can't think of anything else at the moment...
[I][B]Mark[/B][/I]+2 Grey video issueSo far ive replaced TR4, TR5 (and correctly orientated them) and seperated the audio from the video, still I have this; [youtube]mZZWOXRs_Zk[/youtube…
I did think about that too B, just disconnecting its power but I havent tried it yet.
Pin 11 IC2 reads 0.97v, im missing 12v from somewhere!+3 Power SuppliesI have about 4 spare +2A power supplies. Can I use these with the +3, or is there any difference?
... uses:-[/B][/U]
+12V ... IC2 (7812) and C2 (1000uF)
+12V ... IC2 (7812), C4 (3300uF), F2 (1 ...FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... for serial comms. By using --interface1 serial comms are enabled. Then ... ~/fuse-if1-rx
$ fuse --interface1 --no-rs232-handshake --rs232-tx ...FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... ~/fuse-if1-rx
$ fuse --interface1 --no-rs232-handshake --rs232-tx ...Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…
... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 20 (/IORQ ... IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ... IC1 (ULA) pin 12 and IC2 (Z80 CPU) pin 16 (/INT ...Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…
... ) IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ...Yellow issue 4A keyboard madnessNote sure if this is a similar problem to the one CornishManicMiner has, but one of my yellow issue 4A boards is driving me crazy. I had it in variou…
... ) IC1 (ULA) pin 33 and IC2 (Z80 CPU) pin 11 (+5V ...FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... fuse with extra arguments:
--interface1 \
--rs232-tx ~/fuse-if1 ...RobikHello to all, Is anyone experienced on this russian clone? I have one at hand with corrupted screen (but it boots and replies to keyboard inputs so …
this version of Speccy made in my city - Cherkasy, Ukraine (ex USSR republic)
[url]http://www.interface1.net/zx/clones/robik.html[/url]
[url]http://speccy.info/%D0%A0%D0%BE%D0%B1%D0%B8%D0%BA[/url]Favourite Speecy HardwareHi, Just wondering what your favourite piece of Spectrum add-on hardware is/was? How about the Alphacom thermal printer? Or the Currah Speach thin…
Back in the day the Interface1+Microdrive+multiface 1 combo.
These days the divide+
