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Broken +3I have noticed that some members on this forum prefer to repair Spectrums instead of just buying another one from ebay. I would like mine fixed at so…
... the modulator. put the Z80 again in its socket, ... remove the wire), then your Z80 surely works.
Z80, or a faulty ROM B, or... a faulty ULA. ... You will have to find spares for the Z80 ... mod" and leave the Z80 in its original state (but ... -
Recapping your SpeccyHas anyone ever done it? I have several vintage amps, tuners, cassette decks that have been recapped. So just wondering are there many on WOS who ha…
... a Nec-produced Z80 is a Nec-produced Z80 no matter what ... example video generation included in ULA vs. dedicated video chip. Or ... -
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…
[QUOTE=Robin;482599]the two ULA's have different numbers on ... , it has to be the ULA[/QUOTE]
Sorry to ... mounted on top of the Z80. However, the chips were all ... -
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…
[QUOTE=The President;482611]Issue 2s had a less serious flaw which was fixed with a transistor mounted on top of the Z80.[/QUOTE]
And the Issue 1 ;-), but no one noticed until the Issue 2 ULA came out..... -
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…
... 16K machine?
All ULA's are backwards compatible. However ... else, then it'll be Z80 address line pulling power (fnarrr ... -
Computer junkThought i start thread about this,after reading through the capacitor's thread it is true that components will exhaust themselves overtime,so for tho…
... z80 processor, single ram chip, FPGA or something to emulate the ULA ... -
Computer junkThought i start thread about this,after reading through the capacitor's thread it is true that components will exhaust themselves overtime,so for tho…
... z80 processor, single ram chip, FPGA or something to emulate the ULA ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... use cable from the light gun I got today to attach ... to develop some Z80 port reading code with the gun before I ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... passed since I last coded Z80 for the Speccy. O.C ... -DOS 6.20
P2 Z80 v2.71 text editor
gun.
Later ... -
Multiface 1 cant load tapesIve just acquired a Multiface 1 for my 48k, seems to work alright, brings up the menu etc but when i go to load a tape,(and this is in the off or on …
... /> The M1 line on the Z80 appears to be fine, as ... - it may well be the ULA..
