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damaged spectrum+ (blinking squares)Hi, Sorry for my poor english, but I couldn't find on family forums any remedy for my hardware problem with my first speccy in my life :) I've bought…
... , little squares.
I verified voltages on back edge:
B20 ... -
ZX Spectrum + Issue 6A Repair attemptHello everybody! I got ZX Spectrum + which doesnt work properly. On power up I can see color mosaic, then paper goes black and i can see thin red ba…
... all 4116 with no effect, voltages are good (i replaced LM7805 ... -
Just for funJust for fun, imagine the Spectrum had a graphics mode where there were two attribute bytes per 8x8 block and each block had 2 bits per pixel choosin…
... pixel choosing from the 4 palette colours in the 8x8 block ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... any colours in the current palette, or they can be mono ... -
Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... sure though what are the voltages on the Amiga). When we ... look at the voltages required by the device it ... -
Steel Eagle: Martin Severn?Looks like Steel Eagle's loading screen has been done by Martin Severn. See that hidden signature in bottom right? This can be MAS, and I'm sure it'…
... .pri.ee/zxscreen/border/0/palette/pulsar/mode/mix/type/hidden ... -
TV went black & white...Yesterday my old, trusty CRT television suddenly decided to show TV channels in black & white only. (and nothing of value was lost... :grin:) It's a…
... & I know about high voltages inside CRT's, but if ... -
Powering up a Speccy after long-term storage.Staying at my folks for Christmas. Feels good to be back in God's country again, even if it is -12C outside at the moment. :-o Anyway, I was plannin…
... multimeter with me to check voltages, incase it has gone bad ... -
broken 48K, strange screenwell I finally socketed all lower 16K ram chips, (8 of them in a row near corner, not those 4 in two rows) and replaced them with new ones but it did…
... /> edit: I just tested the voltages on RAM chips and they ... -
ZX Spectrum 48K,issue two - can't get it repairedI have an issue 2, which has some weird very small PCB hanging over the Z80. Some wire go to various places on the big PCB, two go to connections 36 …
... lower memery chips the following voltages:
+ 12.01V
+ 4 ... -
ZX Spectrum 48K, issue - works fine till it gets hot (?)ZX Spectrum 48K, issue 2, works just fine, tested with Winston's diag board. At a certain moment in time however, it seems to run hot and stalls. Whe…
... still measure all the right voltages on the lower memory chips ... -
Heads up on the Global Game JamIt's an international event where teams try to complete a game in 48hrs. There are no limits on platform, so spectrum games are allowed if your tea…
... , is restricted to a color palette of four shades of the ... -
Fuzzy Screen On 48k Spectrum.Hi there. I bought a Spectrum off eBay last week (another for my collection lol), and it suffers with a fuzzy screen e.g. it looks like interference …
... there. I've checked the voltages of all the transistors and ... from the resetting it seems). Voltages from the jack plug to ... /> Oh BTW, to test the voltages on both machines, I had ... -
Time Cop[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0013089[/url] I can't be 100% sure, but it seems like that Moonsoft are the true authors of Ti…
... .pri.ee/zxscreen/border/0/palette/pulsar/mode/mix/type/standard ... -
2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…
... at first but all the voltages seem correct; Aprox. 12V Input ... -
Image To ZX Spec 1.3.0Image To ZX Spec 1.3.0 The 8x8 GigaScreen support is probably jumping the shark as other tools will do a better job but it was requested some time a…
... .3.0
- Added "GigaScreen" palette mode (102 colours).
- Added ... -
A major revamp of a computerI'm thinking about buying this motherboard here: [url]http://www.asrock.com/MB/overview.asp?Model=A330GC[/url] AFAICT the DIMM slots for RAM are the…
... 4 pins only supply some voltages that are already there, that ... -
SpecBAS 0.644 now available.There's a new SpecBAS out, and it's available for download here: [url]https://sites.google.com/site/pauldunn/SpecOS.zip[/url] Not much new (again) …
... remap them to match your palette, with dithering options if the ... not available in your screen palette.
Ah yes, ... also added the "web safe" palette and some greyscale colours to ... the default palette.
Please, do ... -
now lost the +5v from my +3 psuthe voltages i get from it are -12v +12v +0.61v what part needs replacing in the housebrick that is the PSU? having a bad weekend :-(
the voltages i get from it are
-12v
+12v
+0.61v
what part needs replacing in the housebrick that is the PSU?
having a bad weekend :-( -
Hutch the RabbitI'm currently working on the graphics for a game that will hopefully be available for the iPhone/iPad or something. Still in it's very early stages, …
... style with a limited colour palette.....but I created the character ... -
Support of other SCREEN$ formats in ZX-PaintbrushDear readers, I've already implemented a nearly complete ULAPlus support in my developing version of ZX-Paintbrush. Works fine so far. But I asked m…
... $ (256x192 pixels, 32x24 attributes, standard palette)
6912 bytes
[*]ULAPlus ... above, but with 64 extra palette bytes)
6912+64 bytes ... above, but with extra 64 palette bytes for ULAPlus support, making ... -
SpecBAS 0.690 Now AvailableHi folks - 0.690 is now available at the usual location: [url]https://sites.google.com/site/pauldunn/SpecOS.zip[/url] You can also download the rece…
... works. Try hitting BREAK, then PALETTE DEFAULT, then use CAT to ... code to flow incorrectly.
PALETTE COPY didn't update the ... internal palette properly, which caused issues with ... -
try to fix issue 4 board problemHi I try to fix speccy 48. All voltages are in place, ula 100% ok, cutted +5v from ic25 so far no luck. What next? ROM or upper memory? wojtek (i…
... to fix speccy 48. All voltages are in place, ula 100 ... -
Composite ProblemHi everyone :smile: I have done the composite modification on a few of my rubber key Spectrum's, and I've had no problems with these on my old porta…
... I've also measured output voltages from the Spectrum and my ... -
Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…
... />
Any ideas? Are there voltages at specific points on the ... -
2 blown PSUs in one dayI got a SAM Coupe today, and the PSU started to smoke as soon as I turned it on. Since the Spectrum +3 PSU looked up to powering the SAM, I wired to…
... .
I checked the voltages. 12V and -12V were fine ... -
ZX-Preview 2.0 out nowDear forum readers, I've had published a new version of ZX-Preview today, we have version 2.0 now. :-) You find it on my homepage at [url]http://www…
... display a 64 color ULAPlus palette as a 8x8 color pattern ... -
black +2 go awayHi, All what is my problem if i have the proper voltages inside my black Spectrum +2 black (+5v+12v) in all the important IC's , and not have any vi…
... if i have the proper voltages inside my black Spectrum +2 ... -
Issue 2 voltage troubleDear all, I got my hands on an old issue 2 from a friend. Price was close to zero so I did not hesitate to take it. After powering it up I was sur…
... draws high current and the voltages drop?
Any guess ... -
BeginnerIm having a go at fixing a spectrum which has been in the loft for 20 years and would like some advice please.... I have downloaded the 'spectrum se…
...
The first two voltages are correct on my machine ... what to do if these voltages are wrong but Im assuming ...
