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new Loading Scheme, test in real spectrum this weekendThis weekend i will test a loading Scheme real Spectrum, i make a demo, to test it, and record video in a given mobile. I did some calculations, and…
This weekend i will test a loading Scheme real Spectrum ... i make a demo, to test it, and record video in ... speed load.
I test runtime at speed 1095 Bytes ... s
The next test if work, test 1240 B/s and ... i need make somethink to test it work.
I ... -
Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…
... ... I wanted to write a test harness for Emulators that could ... ,0,112,221,33,0,128,6,0,14,0,22 ... -
Help wanted: BIFROST* 1.1 on real hardware?[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027405"]BIFROST* ENGINE[/URL]'s latest release 1.1 implements support for all standard Spectr…
... a real Spectrum machine to test it properly.
Could ... you guys please help to test it, by running the released ... the demo you choose to test:
[LIST]
[*]If ... will always work, even in "128 BASIC" mode. Thus I suggest ... -
Getting absolutely no video from a 128+I'm trying to get a friend's toastrack 128 to show video and I'm not having any luck. I'm in the US, so I don't have access to any TVs that can take …
... get a friend's toastrack 128 to show video and I ... -
Speccy 128 VideoI have had this problem for so long need to share now, to see if any of you can help i don't live in the uk, tvs here don't have scart i output vi…
... output video from my 2 128 speccys taking composite from pin ... ://consolasdejuegos.com/uploads/stv20/speccy 128.jpg[/IMG]
this ... -
Intermittent reset on 48K (issue 4S)I'be been fighting an intermittent selfreset the whole day. Changed ULA - did not help. Tested TR6 as i could and compared the reading with another…
... day.
Changed ULA - did not help.
< ... program. For example RAM test from the archive (which ... german). It runs RAM test okay. Nothing bad happens ... guess.
Memory test runs find for a long ... ok.
ULA temp is about 48-50C ... -
For which Spectrum is this ULA?For which Spectrum is this ULA? Ferranti ULA 9RB015E 8428 Micky
For which Spectrum is this ULA?
Ferranti
ULA 9RB015E
8428
Micky -
128 k power packSeems my 128 k toast rack needs more power! I am using a 48 k power pack so if anyone has a working 128k one I will be interested.... Would pay or c…
Seems my 128 k toast rack needs more power! I am using a 48 k power pack so if anyone has a working 128k one I will be interested.... Would pay or could swap for the 48k one or for some software ?
Drop me a PM
Thank you! -
ULAPlus: showing different screen modes in one screenI wanted to write a demo showing the same screen, converted to various screen modes available on the Spectrum (well, a Spectrum clone capable of show…
... showing Timex hicolour mode and ULA+ mode).
Currently ... The third one is a ULA+ screen (low res attributes ... a Timex HiColour screen with ULA+ palette enabled.
ULA+ doc "Using the ... for download and test.[/url] -
Faulty Grey Spectrum +2 - help neededI have a faulty spectrum +2. I tested the voltaged inside - all check fine. Well, within some limit, +5 for example is 4.83, but all other voltages a…
... .
I cannot swap ULA because i don't have ... . I don't know is ULA for toastrack 128K is the ... . What's left? ULA and RAM.
Cannot test ULA and how not ... -
ULA Chips Wanted UrgentlyHello, I am looking for following ULA chips to repair my Speccies: Issue 2 board ULA5C112E 1 pc Issue 3B board ULA6C001E-6 or ULA6C001E-7 2 pc…
... /> I am looking for following ULA chips to repair my Speccies ... -7 2 pcs
ULA 2C158E for ZX81 1 pc ... -
Wanted: 128 +2 B issue 4 Chips RomHello, I am looking for following chips to repair my (2) 128 + 2 B Spectrum + 2 B The board is an[B] issue 4[/B] [COLOR="Red"][B]and not[/B][/CO…
... chips to repair my (2) 128 + 2 B
Spectrum ... -
alternative psu for spectrum 128+Is there any psu for original spectrum 128+ I think the need is for unregulated 9V 2A?
Is there any psu for original spectrum 128+ I think the need is for unregulated 9V 2A? -
Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…
... soldering contacts
- Potential bad ULA's
But today ... almost fully socketed board to test parts that I sell.
Schematic of MULTIFACE 128Exist schematic of Multiface 128 ? I find on WOS only pictures of PCB layers. I mix both layers for possibility make schematic from picture, but it's…
Exist schematic of Multiface 128 ? I find on WOS only ... between MULTIFACE ONE and MULTIFACE 128 ?
MF128 push state of ...ULA chipHi, Does anyone have an ULA chip for a Spectrum 48K issue 2 for sale?
Hi,
Does anyone have an ULA chip for a Spectrum 48K issue 2 for sale?128k ULA pinout?Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?
Is there someone who has a circuit diagram or pinout for the 128k (+2) ULA?Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…
... is generated by the ULA, Chris Smith's ULA book shows it ... , but I ran a quick test with a short program to ...For Sale: Incomplete Plus 2 and 128+ machinesI've got the following for sale or swap: Plus 2 motherboard and keyboard (grey model) 128+ motherboard, lower casing and heatsink 48+ keyboard with …
... and keyboard (grey model)
128+ motherboard, lower casing and heatsink ... never going to get the 128+ going so I'd rather ...Z80 snapshot formatI read documentation for Z80 snapshot on WOS and see in table possibility insert ROM image to Z80 file. Here is full table: [code]The pages are numb…
... /> Page In '48 mode In '128 mode In SamRam mode
test ZX SPIN, SPECTACULATOR, REALSPECTRUM, SPECEMU ...Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... another +2.
Multiface 128 works fine.
Components ... +2:
CPU
ULA
AY-3-8912
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... in replacement for the Sinclair ULA chip fitted in Spectrum 16K ... signals originally generated by the ULA are not present here (it ... , but I will solder and test them myself (Winston... help! :) ) I ... things: to prevent the replacement ULA to touch the upper half ...Spectrum 128K (toast Rack) displaying white as yellow issueHi, I have a chance to buy a Spectrum 128 (toast rack) model which the owner says is working fine except that when it is hooked up to a Amstrad Moni…
... chance to buy a Spectrum 128 (toast rack) model which the ... TV anymore he can't test it on RF! :-o
Sinclair 128 versus +2 ROMHi, A quick question regarding ROM compatibility between two 128 ROMs, the ROM for the original black Spectrum + 128K with the heatsink and the grey…
... regarding ROM compatibility between two 128 ROMs, the ROM for the ... the ROM from the original 128 instead.
RichardZX +2 Grey with quiet ULA soundHi all. I come here for advice before messing up with the main boards and end up killing them for good. I got this grey ZX +2 with a very low ULA a…
... with a very low ULA audio. The ULA sound is low to ... is fine.
The ULA was checked OK with another ...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…
... .cz/super-zx-spectrum-128-2-1-5-mb- ... next modes is automatically activated ULA raining protection.
... speed without slow down. ULA can slow down only ... ZX is used only for ula video data.
... JPG[/img]
128 menu in mode ZX PROFI ...Does anyone have the Beta 128 schematics?Hi. I was just wondering if any of you had schematics for a standalone version of the Beta 128 interface? I've looked at the schematics of the Pent…
... standalone version of the Beta 128 interface?
I've ... easy to isolate the Beta 128 part.
As far ... as i know, the Beta 128 and the standard Betadisk only ...THE ULA CHIPDoes anyone know which the ULA chip is in Spectrum +2 ?
Does anyone know which the ULA chip is in Spectrum +2 ?zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …
Iv just purchased a 128+2 and have only one ... amstrad.
On screen says :128+ 2a...Loader...+ 3 basic.. Calculator ...+2A - stuck on test signalHi, new member here, hope it's OK to ask for help... I recently rescued my old +2A from my parents' loft. When I tried to test it out, I've found th…
... ' loft. When I tried to test it out, I've found ... the menu, it shows the test signal (colour bars with "1987 ... internet - it seems that the test signal should only appear if ... can only get to the test signal colour bars and beeps ...
