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First time capacitor replacementHi, I have an Issue 2 board, that i wish to start with recapping as advised on here, as they look to be all original. (Same with V3 board, but going…
For what it's worth, I've used ZTX653 and BC557B's as replacements for the 650/213 respectively on a grey +2 successfully.
No reason why this wouldn't work on a 48k I think, I can try them out later on.
B -
bright light bright lightfeel like a flippin gremlin today... due to an odd light bulb.. dunno if anyone else has had this with fluorescent light , the tube sort ?.. thought…
... have a rating .. errm 400-650 ish.. and the new one ... -
Let's all have a look at each others...Quite a few musicians around this place...so I thought, let's have a thread to show of our main - or even all - instruments. I'll get the ball rolli…
Peter O'Toole R.I.P.Lawrence of Arabia. Rip
[QUOTE=fog;740970]Goodbye, Mr Chips.[/QUOTE]
[IMG]http://metrouk2.files.wordpress.com/2013/04/mr-chips-2.jpg?w=650&h=364&crop=1#038;h=575[/IMG]Peter O'Toole R.I.P.Lawrence of Arabia. Rip
[QUOTE=Rebelstar without a cause;741004][IMG]http://metrouk2.files.wordpress.com/2013/04/mr-chips-2.jpg?w=650&h=364&crop=1#038;h=575[/IMG][/QUOTE]
It's good, but it's not right :D48k no beeper soundGot a 4S that outputs no beeper sound but does output from the mic ok, replacement speaker?
... answer there.
The ZTX 450 is an E-line ...Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... either heat at 450 or 650 degrees celsius.
Obviously ...Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
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Replaced TR4 with a ZTX 651, Checked TR5 seems okay ...Alan Sugar's plane for saleApropos of nothing, but one of Alan Sugar's personal aircraft (which he owned a while back, I believe he's had a Cirrus SR22 for quite a while now) i…
[QUOTE=mile;769416]As the actress said to the bishop. I was expecting it to be bigger.[/QUOTE]
His other plane is an Embraer Legacy 650:
[url]http://www.air-travel.com.ua/en/news/310.html[/url]Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... ;768913]Replaced TR4 with a ZTX 651, Checked TR5 seems okay ...Currah ?Speech channelIt seems to me that it would be nice to be able to send words to the ?Speech with PRINT #5;"Speak English to me, Jimmy" or some such. There really i…
I've created a list of the phonemes available using something close to the international standard for phonetics. This means it should be easier to implement non-English languages. Although there will still be difficulties as some sounds are simply missing. ...Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…
... blow as fast as the ZTX 651 / ZTX 213 giving me a ...VERY loud beeper!!I recently replaced a dead beeper with another from an old set of headphones, only this is MUCH louder! Is there a way of bringing the volume down a …
... issue 3 board use a ZTX 450 connected to the 5V ...Popular Computing WeeklyHope someone can help me, I've been typing in a whole heap of early Type-ins for the Amstrad CPC 464 and have typed in a program, though it's not wor…
... $) GOSUB 1550,400,490,570,650,730,790,850,940,1030 ... /> 630 RETURN
640 '
650 WHILE INKEY(45)=0: IF ...Popular Computing WeeklyHope someone can help me, I've been typing in a whole heap of early Type-ins for the Amstrad CPC 464 and have typed in a program, though it's not wor…
... $) GOSUB 1550,400,490,570,650,730,790,850,940,1030 ... /> 630 RETURN
640 '
650 WHILE INKEY(45)=0: IF ...Popular Computing WeeklyHope someone can help me, I've been typing in a whole heap of early Type-ins for the Amstrad CPC 464 and have typed in a program, though it's not wor…
... $) GOSUB 1550,400,490,570,650,730,790,850,940,1030 ... /> 630 RETURN
640 '
650 WHILE INKEY(45)=0: IF ...Spectrum Issue 2 - TR6 ReplacementI've just got my hands on an Issue 2 ZX Spectrum, that needed some repairs. The picture quality after doing a composite modification was pretty shodd…
... transistor is different to the ZTX series.
[I][B ...Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... 's not working, test the ZTX 450 and the two diodes ...Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... 's not working, test the ZTX 450 and the two diodes ... key. :confused:
is ZTX 450 located in TR4?Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
Issue two - no ZTX 450 in the output audio - so, test:
D9, 10 and 13 as well as the caps and resistors mentioned earlier (R36, R37, C32 and C35)Spectrum 48k ProblemsHi all Got my 48k today but it's playing up abit... First time i turn it on it was like this: [IMG]http://s26.postimg.org/hlg9d3f3d/IMG_20140830_…
... />
[QUOTE]Issue two - no ZTX 450 in the output audio ...Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…
... around (they were the original ZTX 313 by the looks of ...'Interesting' Issue 2 modSo I've been lurking on this forum for a while and I've got to the point where I want to see if I can repair a speccy.. so I bought me a 'broken' one…
... are pin compatible with the 650 so should be installed as ...
