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Help: Not loading anythingBought a ZX Spectrum +, having some problems with it. The ear is not working at all, not even a searching tone (not sure of the correct terminology) …
... , which I have done. Replacing D9 diode (will soon as possible), if ... -
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_…
Try connecting the Spectrum to your PC and play the tzx from that. My 48k had a partially defect ULA and it wouldn't lad tapes. Mine was also quiet because of duff D9 diode. The sound is TR7. -
BA157 diodeUsed in Speccies, so not too off topic :P Right, it's a "fast recovery rectifier diode" - can anybody tell me what that means exactly? Fast recover…
... 's a "fast recovery rectifier diode" - can anybody tell me what ... what the difference between this diode and a normal 1N40XX is ... "it's a fast recovery diode" -
Intermittent reset on 48K (issue 4S)I'be been fighting an intermittent selfreset the whole day. Changed ULA - did not help. Tested TR6 as i could and compared the reading with another…
... and soldered new D13 and D9 since it suspected that it ... anyway, D9 and D13 and new now. Exactly the same diode.
Intermittent sound cutting outHello, I'm resurrecting an old rubber key spectrum. Originally it had no sound at all, diode D9 was blown, I replaced it with one from my other dead …
... had no sound at all, diode D9 was blown, I replaced it ...Mute switchOn a standard 48K machine, would it do any harm to fit a mute switch into one of the sounders connections ? I mean by 'harm' switching it on / off w…
... switch to the cathode of D9 and ground, respectively. If your ... is a issue 2, then D9 will have 0V at is ... />
The cathode for a diode with a black body is ...divIDE x Spectrum clonesAnyone has a Spectrum clone and did a test with divIDE? Here in Brazil we have 2 Spectrum clones (TK90X and TK95) that are almost 95-99% compatible w…
... A15 from Z80CPU to keyboard diode D9. Keys "SPACE, SYMBOL, M, N ...Modulator oddness - previous owner's mod?Hello, just bought a rubber key 48k Issue 3 I'm trying to fix up. I'm wanting to do a composite video out mod ( n00b at this) but the "spare" hole in…
... tested OK, turned out that diode D9 was blown - maximum resistance in ...48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
... ULA pin 28 voltage on diode D9 anode (a) lead, approx 0 ... the ULA pin voltage) on diode D9 cathode (k) lead (with the ...48k no beeper sound (again!)Got three 48k+ here, all of which have the same exact problem, no sound out the beeper, same problem as detailed [URL="http://www.worldofspectrum.org…
Yesterday I've repaired an issue 3b board that had no sound, testing in the Ear port beeps and keycliks where present so I thought tr7 should be, and wrong ... my first D9 blown diode ( 1n4148 since it's not marked in the schematics ).Issue 3B no soundI just noticed that there's no sound in the Issue 3B Speccy that I've been fixing. Is it more likely that the speaker is bust or is it TR7 and D9? …
... was the butler, I mean diode. I did change TR7 already ... I might as well change D9 too and that did the ...ZX Spectrum issue 6a - yellow border problem<p>Hello!</p><p>I have problem with my Sinclair ZX Spectrum issue 6A, 48K. </p><p>I have changed low memory (all 4116 IC's) and coil, all electrolyti…
... connection TR7 - D9 by dissolving one leg of the diode.
With ...ZX Spectrum 48K Issue 4B No soundHi, I have a ZX Spectrum 48K Issue 4B without sound. I tested the ULA on another Spectrum and works fine, tested the speaker and it has the correct …
D13 is directly under D9 on the issue 4A / 4B ... and transistor.
Both D9 and D13 are 1N4148 signal ... , but a similar specification signal diode can be used.
D9 and / or D13, replace with a new diode.
Using a +3 power supply to power a CPC.Hi there, I'm going to try and power a CPC6128 using a +3 power supply. The +3 supplies 12V DC 0.2A and 5V DC 2A, the CPC6128 needs 12V DC 0.4A and …
... by adding a 1N5400 Rectifier Diode (3A) to the two lines ...Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …
ebay are saving me a fortune......is ebay sending the alerts out late or is blueyonder accepting them late? Received: from mxsmfpool01.ebay.com ([66.135.209.198] helo=mxsmfpool01.…
... .52)
id 1H8Ngj-0002nP-D9
for [email]emailaddresschanged@blueyonder ...+3 external floppyI'd like to connect 3,5" PC floppy drive (NEC) to ZX Spectrum +3 (with diode for RDY). Here are questions: 1) It seems the PC floppy uses just +5V, …
... ) to ZX Spectrum +3 (with diode for RDY). Here are questions ...wanna see if my +2 works... but I have a problem with power supply unit. Note: English is not my native language so forgive my mistakes. At one time it stoped working, aft…
... that one of diodes in diode bridge has gone in flames ...Mb02+ideAs I wrote in the hardware forum there will be a small number of a redesigned MB02+IDE (nearly the original MB02+ including IDE interface also for CF…
... design)
8. fast Clamping diode (600 W) safes chips against ...ZXCF conundrumsBefore I start spending time prodding my ZXCF, I ought to ask... Anyone else have problems with the ZXCF losing its memory between power cycles? I'v…
... , presumably that's just a diode drop's worth). However, I ...Multiface One - brokenFor a long time I have had a Multiface One, that since I got it never worked. When I attach it to the computer (edge connector completely cleaned), i…
... x 74LS260
1 x diode on B14 (edge connector)
diode?
Is there anything ...What's this hardware?[URL="http://www2.snapfish.com/slideshow/AlbumID=1351742020/PictureID=39192676020/a=1759991020_1759991020/otsc=SHR/otsi=SPIClink/COBRAND_NAME=snapfis…
... are protected by a 1N4xxx diode and an electronic capacitor for ...Schematic error.. (?)Hi, I was browsing this page: [URL="http://microhobby.speccy.cz/150203/hardware/bus.html"]http://microhobby.speccy.cz/150203/hardware/bus.html[/URL]…
... am I wrong).
The diode D2 is suppose to be ...3.5 drive (external)Hi, I read that I have to put a 'diode' on the ribbon cable (for the RDY signal). But so far I could not find where can I put it on the cable... Any…
Hi,
I read that I have to put a 'diode' on the ribbon cable (for the RDY signal).
But so far I could not find where can I put it on the cable...
Any help, please?
Regards
Chrisissue 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…
... that there was a glass diode by where the ear connection ...Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …
... problems, speaks about of a diode (IN 4148 ) and of a ...Possible tape loading modI've got an idea for improving the reliability of loading from mp3 players or computer soundcards on the +3 or Black +2... It seems to work but I ju…
... a 220 ohm resistor across diode D38 it allows me to ... just concerned about what that diode is actually doing... I guess ...Testing memory/transistors etc with multimeterAnyone have a rough guide to show how to do this properly? Im using the diode setting on the multimeter to test various components, im touching the b…
... this properly? Im using the diode setting on the multimeter to ...faultyi have a zx48 that will not tune in it allways seems to be just out of tune what could cause this fault also half of the keyboard doesnot work there …
... a repaire done on a diode and it looks like its ...Would this work for Scart blanking in +3?I was looking at RGB to Scart cable solutions over at CPCWiki. Theres [URL="http://www.cpcwiki.eu/index.php/TV_SCART_cable#Alternative_RGB_Wiring"]o…
... put a jump wire with diode from Scart's composite pin ...
