-
Cooking toastrack... the dreaded smellI powered up my Spectrum 128 (heatsink model) yesterday only to see what looked like an out-of-tune picture on the television. I'm using a scart adap…
... ]http://8bit.yarek.pl/computer/zx.128/[/url]
And no ... -
Using an EPROM in a 48K SpectrumThere are plenty of guides as to how to do this floating around, however I didn't like the fact that you can't then plug in the standard 27128 ROM ch…
... plug in the standard 27128 ROM chip after the board is modified ... at the standard $0000-$3FFF ROM locations. So I loaded ... Willem programmer, loaded a Spectrum ROM image at $0000, duplicated ... the possibility of an incorrect Chip Select control.
... -
Divide with CF Adapter on TS 2068 and Gray +2Okay, full disclosure: The divide used to work on both my TS 2068 (with twister board) and Spectrum Gray +2. Then for some reason, it stopped worki…
... run on TS-2068 ROM or Spectrum ROM that plug into Cartridge ... has to run directly to ZX Spectrum ROM.
If you ... ZX Spectrum ROM you can try to replace TS-2068 ROM with ZX Spectrum ROM ... -
Divide with CF Adapter on TS 2068 and Gray +2Okay, full disclosure: The divide used to work on both my TS 2068 (with twister board) and Spectrum Gray +2. Then for some reason, it stopped worki…
... run on TS-2068 ROM or Spectrum ROM that plug into Cartridge ... has to run directly to ZX Spectrum ROM.
If you ... ZX Spectrum ROM you can try to replace TS-2068 ROM with ZX Spectrum ROM ... -
ZX Interface 1 Compatability<p>I wondered if anyone knows of any compatibility problems between the ZX interface 1 and certain Issues of the Spectrum motherboard?</p><p>I just p…
... I socket the ROM chip and swap the NEC chip that's in ... there with a Sinclair ROM chip I've salvaged from a ... Issue 2?Would swapping the ROM from an Issue 2 into ... -
Microdrive-Microdrive incompatibility?Hi All! Finally I could get enough Microdrives and connecting blocks (or cable replacement) to make the largest storage configuration of the classic…
... to test a modified IF1 ROM.
[url="http://www. ... an IF1 without the bad ROM chip, the ROM came from ZXC3 cartridge ... in IF2 ROM socket.
That IF1 ... still have socketed ROM... I have 10 working drives ... -
48k not startingHi team, I have 2 48k's, one works (Issue 4s), one doesn't (Issue 4a). The non-working one appears to start, but not finish the RAM test. The pape…
... use unless it has a ROM chip that can be changed ... ) and which runs from ROM (or EPROM/EEPROM/E2PROM/ ... flash ROM). This can then do ... and tell you which RAM chip(s) appear to be ... .
Is the ROM soldered directly to the board ... -
Access to ZX81-Service ManualI need the ZX81-Service manual to repair my sick Zeddy. Unfortunately I don't get access to WOS documents via ftp. How can I register? For the ZX-S…
... socketed.
The SRAM chip(s) are not normally socketed ... is needed.
The ROM is often socketed on the ... . If you have a mask ROM chip (24 pin type marked MOSTEK ... ULA is the most likely chip to fail. There are still ... -
Spectrom interface ?Hi all, I got 2 of this devices ... :) [img]http://forest.no-ip.org/wos/spectrom/20151006_151428.jpg[/img] [img]http://forest.no-ip.org/wos/sp…
... quote]
Normally, Spectrum ROM occupies the lowest 16 K ... to disable that ROM by pulling /ROMCS (ROM Chip Select) line of ... can page it's own ROM in when needed. When this ... happens, the external ROM (or RAM) temporarily occupies the ... -
Was there a POKE that broke the SpectrumHi Everyone I've been recalling myths and rumours from back in the day. You know "Lunar Jetmans" trailer and that sort of thing. But one rumour …
... In the Spectrum, poking the ROM area has no effect, ... decodes and controls the ROM chip to only respond to ... BASIC program in the ROM actually does write to ... poking values in the ROM area may cause bus ... This happens because the ROM responds to the address ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... a file. A “ROM dump” or “ROM image” is a file ... have been read from a ROM chip.
Much of ... , if you destroy the ROM chips, then we will ... that by destroying your ROM chips you may permanently ... careful to record which ROM came from which Opus ... -
Some downloads fail meI want download the schema of the Spectrum +2A and I can not because appears a user and password request in all links of "SCHEMATICS, MANUALS AND TEC…
... signal at the colour encoder chip (IC9), when the combined signal ... the machine code in the ROM chip. Some machine code games use ... -
Dead issue 3b with black and white barsHi all, I've been donated an issue 3b which has some nice black and white bars with a few flashing blocks. I've done a few RAM tests and could spo…
... you either have a test ROM image or one of the ... loaded in it's flash ROM chip.
And the last ... -
Under development: SETO TAISHO VS YOKAIAfter having been defeated by Funky Fungus, Seto Taisho, the crockery general, returns to Japan with its dreams of glory now shattered. However, duri…
... /> [img]http://www.alessandrogrussu.it/zx/Seto-3.gif[/img]
ZX 128 and +2 etc.). Emulators used ... : SpecEmu-3.1.b211115, ZX Spin 0.7s.
128 mode and the aforementioned DivIDE ... -
Issue 3b boarddiode ID5 and cap C47 are missing from my board will these have any effect on system powering up. I have checked the voltages on the 7508 and its …
I have picked up some 27c256s and going to make a diagnostics rom to fit in place or the basic rom chip and see what that tells me -
Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... CPU), you need a faster ROM chip, faster RAM. In essence, most ... /> And the code in the ROM will need changes to cope ... -
Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... course, as the CPU, the ROM chip and RAM chips are modern ... -
Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... course, as the CPU, the ROM chip and RAM chips are modern ... -
Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
I got one on the way :D:D .... not sure where to get a 128k rom chip from... any ideas?? -
Harlequin 128k??Hi peeps... I've seen that you can do a 128k version of the Harlequin board. Is it just the standard board with different chips or is it a dif…
... for the rom chip it says you need a 27C256 programmable rom chip... would ... a +2 128k rom chip fit in the ... -
Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
... />
You may have a ROM chip that is responding too slowly ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
As you can see, the ROM chip is directly bonded to the ... a SMD EPROM or EEPROM chip?
I don't think ... through hole EPROM or EEPROM chip.
But good work ... -
Datasheets of the Spectrum 128K +2 ICs.Is there any place where I can find the datasheets of the ICs of the Spectrum 128K +2? I have tried to look for each of them separately but for some…
... , the DRAM, the AY sound chip, the serial port/aux port ... find a datasheet for the ROM chip, but look at a datasheet ... -
ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... can release schematic. Firmware for rom chip is in development (only blocks ... -
Question - SAMS Timex Sinclair 2068 Beginner/Intermediate GuideHi all, I just acquired a T/S 2068 and the a book that came with it is, SAMS Timex Sinclair 2068 Beginner/Intermediate Guide. On page 18 of thi…
... not rely on the Spectrum ROM code. Because of the differences ... between the Timex ROM and the Sinclair ROM, a number of ... a socket for a ROM chip. With a Sinclair ROM chip fitted, a lot ... -
DivIDE 57c update and 128 games?Hi all, Lots of questions ahead!! :) I have found my long lost DivIDE 57c. I have put in my Spectrum 128+ and I spotted that it has 2005 Fat…
... tested to load Commando 128 and Cybernoid II 128 but they lack ... )
I have my ZX 128+ hooked on TV with an ... -
How feasible is it to add a second CPU to the ZX Spectrum?Today with IDE, and USB, and TCP/IP and other wonderful technologies arriving on the ZX Spectrum, I'm beginning to wonder if we'll run out of CPU tim…
... connected to its own seperate ROM chip to run code from, but ... -
ZX Spectrum 48k issuesHi all! A couple of days ago I bought my first 48k Speccy off ebay (I already own a beautiful QL expanded with QubIDE interface and 640k ram). It was…
... remove the Spectrum's own ROM chip, plus either make an adaptor ... pin, while the Sinclair ROM chip has two chip select pins...).
