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issue 2 sound /loading problemshi guys ive just done component video conversion on this issue 2 board that went well..but when i had case off i did notice that there was a glass di…
... component video conversion on this issue 2 board that went well ... -
Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…
... was possible. I suspected an ULA failure, which generated too many ... 's not a keyboard matrix issue.
I peeked values ... change anything.
No ULA issues, no keyboard membrane/matrix ... sharing with you this strange issue, I'd like to ask ... -
Can ULA kill other componentsIn my search for a problem I used a ULA6C001E-7 on a board that had a ULA6C00IE-6 chip. Q1) Should this have worked? Q2) After this experiment both …
flickering noisy screenI have just replaced the ram and ULA. The spectrum boots up OK but the screen is very noisy/wobbly/flickering really annoying :) I am wondering how …
... just replaced the ram and ULA. The spectrum boots up OK ... go about fault finding this issue. Does anyone have any ideas ...ULA Plus and Interlace.May be a bit late to suggest this, but here goes. Did the original Speccy ULA actually output a proper PAL interlaced image, with timing pulses on a…
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Did the original Speccy ULA actually output a proper PAL ... frame?
Now, does ULA Plus generate a proper interlaced ...ULA Price Poll - You get to chooseIt is difficult to set the price of the book. If it is too low I will undersell my efforts, too high and I overcharge. So choose what you would be w…
... content not only documents the ULA circuit, but also full details ... of the Ferranti ULA range, images of the 6C001 ... ULA internals, both optical and scanning ... technology that was the Ferranti ULA, or the principles and techniques ...Partslist ZX 48K issue 4 PCBHas anyone the partslist from the ZX 48K issue 4 PCB? I can only find those from issue 1, 2, and 3. Thanks! Micky
Has anyone the partslist from the ZX 48K issue 4 PCB? I can only find those from issue 1, 2, and 3. Thanks!
MickyULA equivalent?Gives it an ULA equivalent for the ZX 48K? Or not because the ULA is a custom chip. Micky
Gives it an ULA equivalent for the ZX 48K? Or not because the ULA is a custom chip.
MickyCRASH archaeology: first issue of the catalogueYou might know that CRASH, before it launched as a magazine, was published as a software catalogue. CRASH Online has featured a couple of different e…
... scans of the first ever issue of the catalogue - in other ... art prints including the CRASH issue 1 cover
* [url]http ...Have a real 48k Speccy? yes ? I need your help.Im looking to run this quick test on as many [COLOR="Red"](only)[/COLOR] 48k Spectrums as possible [B][COLOR="Red"]files moved[/COLOR][/B] [URL="ht…
... you know the board issue, the CPU, ULA you have inside please ... [/COLOR]
ULA: [COLOR="red"]6C001E-7[/COLOR]
BOARD ISSUE: [COLOR ...Crash issue 6 and binder stickersHi guys, Still trying to come across issue 6 of Crash complete and also some binder stickers for the Crash binders as mine have gone astray …
Hi guys,
Still trying to come across issue 6 of Crash complete and also some binder stickers for the Crash binders as mine have gone astray from the binders (1984 ,85 and 86 )
Any body got any ?Static vs stacked local variables in z88dkHello everyone. I'm doing a program for Spectrum 48KB with z88dk v1.8 (XX Mar 2008), and I eventually discovered that if your local variables in fun…
... address 32768, far from the ULA's hands, while the stack ... interested in solving the second issue. Can someone help by fixing ...The late running issue 23 of SAM Revival magazine is out now!The very late running issue 23 of SAM Revival magazine is out now! [img]http://www.quazar.clara.net/a40/sr23.jpg[/img] SAM Revival is the only new…
The very late running issue 23 of SAM Revival magazine ... 't be disappointed! The first issue launched in August 2002 and ... countries.
SAM Revival issue 23 features the fantastic VIC ...Trying to fix Spectrum Issue TwoHello everybody, I bought from eBay three Spectrums - one is Issue Two and the other two are Issue 3. The Issues 3s look like they are working but t…
... eBay three Spectrums - one is Issue Two and the other two ... are Issue 3. The Issues 3s look ... they are working but the Issue Two not.
So ...Quiet ZX Spectrum Issue 3We have a ZX Spectrum issue 3 where the volume is very low. The TR7 has been replaced, but to no effect. The speaker looks ok, but apart from swapp…
We have a ZX Spectrum issue 3 where the volume is very low.
The TR7 has been replaced, but to no effect. The speaker looks ok, but apart from swapping the speaker, is there anything else to try?Issue 5 Spectrum BoardHas anyone got an issue 5 spectrum board they would be willing to part with? I have all issues (I think!) except the Issue 5. Happy to pay, swap the…
Has anyone got an issue 5 spectrum board they would ... issues (I think!) except the Issue 5.
Happy to ... pay, swap the issue 5 for 2 other issues ...+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... [/URL] says:
[quote]The ULA bug which causes snow when ... .[/quote]
Will the ULA bug appear on the Spectrum ...RFC: ZXI hardware interface standardisationReposted from c.s.s to reach a wider audience [QUOTE=Andrew Owen] You may have noticed that there are more people making add-ons for the Speccy than…
... how bad it is, the ULA uses 32768 ports. Most of ... solution to the ROM paging issue. It uses a dasiy chaining ...Issue 65 of Scene+As I understand that some programmers wants to be informed if their programs were distributed on our disk magazine, here is a list what will be on ne…
... what will be on next issue:
-Demos
Story ...ULA BookI've just had an email stating that my ULA book is "in the post" - yay! Well done Mr Smith for all the hard work on this.
I've just had an email stating that my ULA book is "in the post" - yay! Well done Mr Smith for all the hard work on this.48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…
... it was only the issue one machines that are ... these machines is the ULA chip, the only custom ... effectively and lets you issue commands to the rest ... head, with a working ULA (subsequently tested on another ... replacing the chip fixed the issue, I originally thought it ...ula bookula book is here: [url]http://www.zxdesign.info/book/[/url] can i post sam coupe stuff here - she kind of is a speccy if you stuff the speccy rom i…
ula book is here:
[ ... you
was readinfg the ula book and this is not ... described as ula snow - the description of that ... which is what i thought ula snow was whereas that is ...games tm 100th issuehas anybody bought any of the speccy related games tm covers yet? theres 100 different covers for the one issue, speccy related ones are ant attack, …
... different covers for the one issue, speccy related ones are ant ...Micromega article in Retro Gamer issue 81I'm not one for banging my own drum - [I]but[/I] - I've written an article about Micromega and it's in the new issue of Retro Gamer (in shops on Thur…
... it's in the new issue of Retro Gamer (in shops ... Estcourt too.
The issue also features a Q& ... . So, well worth tracking this issue down :smile:128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…
Reading the ULA book has reminded me of ... it cannot be used with Issue 2 spectrums with a transistor ... the CPU to fix a ULA bug (p71). The following diagram ... hardware patch that disables the ULA when A7=0?
Ta ...Help with broken SpectrumHi There, Just received a ZX Spectrum computer. It's an issue 3B (48k version). When I power it up (9V centre pin -V) nothing happens. It's complete…
... Spectrum computer. It's an issue 3B (48k version).
When ... OK (perfect 5V).
The ULA gets a bit hot. Other ...Memory upgradeHi! I bought a 16K rubber key Spectrum. It's said in the box and memory test program also said it's 16K machine. Strange thing is that there is yell…
... also 4 empty sockets between ULA and Z80.
My question ... 16K-->48K? Motherboard is Issue 2.
What might be ...zx spectrum ULAis the ULA in the 16K the same as in the 48K could you take the 16K ULA and place it in a 48K I ask this because i have a speccy thats dogy with th…
is the ULA in the 16K the same as in the 48K
could you take the 16K ULA and place it in a 48K
I ask this because i have a speccy thats dogy with the graphics and my 16K has keyboard issues
thanksZX spectrum 48K ULAhi everyone I WANT a 48K working ULA. My one needs replacing.. Thanks
hi everyone
I WANT a 48K working ULA. My one needs replacing..
Thanks
