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GrrrThere's nothing more annoying than finding out that you've managed to bridge /RAS and A3 on the bank of 4116s while putting in sockets. Naturally, th…
... desoldering fan. I put the board in something to hold it ... a socket at least to Issue 4S which suggests that it ... -
Rubber Key Spectrum BoxesAfter buying quite a few boxes i have found that in all there are 7 ndifferent box designs and its possible to know which issue speccy isin the box w…
... -keyed Speccy. It's an issue 4a board (I opened it up ... -
The Unofficial Official 25th Anniversary celebrations and Website announcement threadAs Martijn's going to be away during the festivities, can people report what they're doing here please, as and when they have something to announce. …
... hours typing "Spiderman" from one issue of ZX Computing into a ... across two points on the board and with the computer on ... -
BooHoo....Broken Speccy on 25th anniversary!Speccy broke today (today of all days!!) I'm presented with black screen on power up, anybody any ideas what might have gone wrong and any repair ti…
... guinea-pigs for my diagnostics board - send it to me and ... I do have an Issue 4S board I can swap it with ... -
Best two-player (or more) speccy gamesCan you all suggest some? Cheers.
... took it in turn to issue orders to agents located around ... required a keyboard overlay, game board (centre pages of the magazine ... -
Spectrum designers drawing board on Ebay1 day left if any ones interested
... for me owning this drawing board is a bit like creating ... the same drawing board that appeared in Sinclair User Issue 5 nearly ... .jpg[/url]
This board started the revolution that saw ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... (not an external one), this board (4S) is coated with non ... for sure).
On this issue also, the coil is a ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
That's odd, I can hear the coil on an Issue 4S board. (I've also had a hairline splatter from desoldering cause a short on an 4S board despite the green solder resist on both sides).
Wonder what the wave form going into the coil looks like. -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... fitted as standard on an issue 4S board, if you have, it ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... , just higher value.
The board doesn't have any ZTX ... I have seen personally inside Issue 4S machines.
I ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... all electrolytic capacitors on the board. This is the first thing ... I try to repair a board. Unfortunately I do not have ... (disc caps are used on issue 4S boards), is cracked, a ... -
TIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
I have to go out, but when I return I will take some current readings from an issue 4S board for you. -
128k dead, no TV signalI got 128k spectrum (heatsink model) from a friend of mine. He told me that speccy is dead, and he doesn't know what's wrong with it. When I plugged…
... other spectrum +128K ( with a issue 9G) that have this ULA ... />
You can see some issue board in:
[url]http ... -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
[QUOTE=odious;189120]Two more:
BC 549B in TR9 and TR8 on a issue 6B
Cheers[/QUOTE]
I've never seen an issue 6b board! Cheers, updated :) -
Component Equivalents/substitutionsA while ago, I mentioned to somebody in a thread that we should have a list of component equivalents and substitutions so that it's easier to fix our…
[QUOTE=DEATH;189145]I've never seen an issue 6b board! Cheers, updated :)[/QUOTE]
Oops. It's a 6A. Sorry.
Cheers. -
Load games on real speccy via laptop?Not sure if i've put this in the right place.. but, I have a speccy 48 which has never been turned on apparently, so i turned it on this morning and…
... swap a working Issue 4S board with your dead board. PM me. (I ... -
Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
... may need to make an Issue 2 board which is slightly shrunk ... -
Spinning out of controlJust wondered if anyone else has problems with spin. What happens to me sometimes is as I go to load a new snaphot or tap spin crashes out tothe des…
... Spin was a direct X issue in which I had to ... cel processor
intel on board graphics
No other ... -
Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
... Olimex (for a Z80 single board computer project) to see how ... an 'Issue 2' for PCB manufacture to make the board much smaller ... smaller I can get the board, the lower the cost. The ... -
How can I tell what issue a speccy is from the serial number?Is it possible to know the issue of a speccy just by looking its serial number? What issue a 001-107603 could be? Is it issue 1 (i know its a 16K ma…
They are trying to find out if its issue 1, an issue 1speccy has the hand drawn traces on the PCB, and takes a daughter board to upgrade to 48K. They are very rare and highly sought after. Basically they are trying to sniff out an undetected bargain. -
How can I tell what issue a speccy is from the serial number?Is it possible to know the issue of a speccy just by looking its serial number? What issue a 001-107603 could be? Is it issue 1 (i know its a 16K ma…
... cunning ways to determine the issue of a ZX Spectrum from ... /> Issue 1s are only 48k by the assistance of a daughter board ... with the trimmers.
Issue 5 onwards uses the ZX8401 ... ZX8401, sometimes a PCF1360P) indicates issue 5 onwards, and is towards ... -
Interface 1 electrolytic capacitorsInterface 1 has three 47μF electrolytic capacitors. Is it necesary to replace them with fresh ones? I always do this with old speccys but is it…
... electrolytic caps on the speccy board.
For example, I ... the left area of the board).
That has ... hand side of the board that often gives problems ... of quality issues. The issue 4S board, made in Korea, is ... a very well made board. It still goes wrong ... -
Spectrum ULAHi new to forum ,and have been a speccy owner/fan since the begining{like most 30 somthins on this forum !) Anyway what i want to know is the ULA th…
... />
I have an issue 2 board for spares the memory is ... -
Spectrum ULAHi new to forum ,and have been a speccy owner/fan since the begining{like most 30 somthins on this forum !) Anyway what i want to know is the ULA th…
... that 16k speccys were only issue 1 [/B]
... a lot of the second issue were 16K machines also. It ... />
[B]I have an issue 3b mainboard out of a ... /> [B]I have an issue 2 board for spares the memory is ... what's wrong with the issue 2, why not get ... -
Spectrum ULAHi new to forum ,and have been a speccy owner/fan since the begining{like most 30 somthins on this forum !) Anyway what i want to know is the ULA th…
... the memory chips off the issue 2 and solder it back ... correct memory chips for the issue 2 anywhere?
I ... have used it on another board
Mark -
Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... "
I assume its an issue 2 you have, it must ... you describe sounds like an issue 2 speccy with a drifty ... DEATH..... if on an issue2 board, the screen colour is not ... checked out fine on another board, could it be the X2 ... -
Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... describe sounds like an issue 2 speccy with a ... on my own board (funnily enough, an issue 2) was cured ... DEATH..... if on an issue2 board, the screen colour is ... checked out fine on another board, could it be the ... .
If your board is in a + case, you ... -
Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... problem on my own board (funnily enough, an issue 2) was cured ... what is happening with my issue two anyway. The sinclair research ... -
Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... DO know I do a board swop thingy dont you? You ... send a duff board and I send you back ... working one of the same issue (if available)? It's free ... -
Does anyone have any working Ferranti's?Does anyone know where I might get hold of a Ferranti ULA5C112E-3?? I think this is the problem with one of my rubber key 48K's as it otherwise wor…
... DO know I do a board swop thingy dont you? You ... send a duff board and I send you back ... working one of the same issue (if available)? It's free ...
