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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…
... /> Also, I do have a multimeter that I could use to ... idea how to use a multimeter even though I have one ... -
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…
... these I simply used a multimeter set it to measure DC ... -
scart wiring?I've got rid of an old TV recently, and when pulling the scart splitter box out of it , the plate came off it and I have 2 wires that aren't attached…
... grounded. If you have a multimeter then you could measure if ... -
Schematic ErrorThere appears to be an error in the Schematic for the 128k +2A and +3 the error is present in both the redrawn TIF version and the original drawing …
... with a +3 motherboard, a multimeter, and limitless patience feel free ... -
Help needed +2 pleaseI have a 128k+ that when powered up through the rgb or aerial connection just shows a black screen. But I can still see the list of options and run d…
... of the TEA2000 with a multimeter, a black screen with a ... -
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…
... the power supply with a multimeter. If it isn't producing ... -
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…
... of the wrong type. A multimeter check this morning proved that ... -
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…
...
Helppc v2.10
Multimeter
QL RS232 serial adaptor ... -
Best tools, oscilloscope for ZX Spectrum repairHi, Since I'm a newbie in this area, I'd like to ask about the most appropriate tools for ZX Spectrum repair. For example I'd like to purchase an a…
... basic tools: soldering iron, digital multimeter, desoldering pump (simple/cheap manual ... -
Best tools, oscilloscope for ZX Spectrum repairHi, Since I'm a newbie in this area, I'd like to ask about the most appropriate tools for ZX Spectrum repair. For example I'd like to purchase an a…
... . It is not like a multimeter that shows you a voltage ... -
Best tools, oscilloscope for ZX Spectrum repairHi, Since I'm a newbie in this area, I'd like to ask about the most appropriate tools for ZX Spectrum repair. For example I'd like to purchase an a…
... like repairs with just a multimeter (I probably didn't need ... -
Schematic ErrorThere appears to be an error in the Schematic for the 128k +2A and +3 the error is present in both the redrawn TIF version and the original drawing …
I've made a start on the +2B version, but I need some help. Anyone with a black +2 issue 1, 2, or 3 board. Can you check some things out to find what is connected where? Just a multimeter for measuring continuity is fine. -
Schematic ErrorThere appears to be an error in the Schematic for the 128k +2A and +3 the error is present in both the redrawn TIF version and the original drawing …
... is connected where? Just a multimeter for measuring continuity is fine ... -
opus discovery repair?I just got one today, that isn't working.. I notice there is a schematic on here.. is there any service manual etc? there was a guy in SW London , I…
... a cheap (E 5.-) digital multimeter. (20 Kohm position, black wire ... -
opus discovery repair?I just got one today, that isn't working.. I notice there is a schematic on here.. is there any service manual etc? there was a guy in SW London , I…
roko , I'll pass that on to a friend that I'll ask to look at the unit.. he has all that sort of thing .. multimeter etc. -
Simple & Portible means to boost PC Soundcard Line Out?Hi Guys, My older computers were very good at driving a real spectrum's ear socket via their Line Out or Headphone socket. My new Dell's sound card…
... line out power using a multimeter? (I don't have an ... -
Powerpack melts! +3 survives!I woke up this morning, switched on the sockets, went to the loo 'as you do' and came back into the living room. I heard this clicking sound so I th…
... enough to diagnose with a multimeter.
Sometimes due to ... -
Microdrive faultHi, After a chat with "Winston" at the R3PLAY show I have been able to fix my 48k spectrum faulty M1 signal. My problem with the microdrive is int…
... with a soldering iron and multimeter, but don't have anything ... -
MK-14. Huge lot of questions.Let's start questions about it! Ding! 1. Are they though (i mean they won't break until a day ;D)? 2. Is there gaming on it? :-P 3. How the prices a…
... with a soldering iron and multimeter every time it breaks,then ... -
48k rubber key screen corruption[IMG][URL=http://img195.imageshack.us/i/img7398g.jpg/][IMG]http://img195.imageshack.us/img195/5563/img7398g.th.jpg[/IMG][/URL] Uploaded with [URL=htt…
Id love to do that but im bereft of a multimeter unfortunately -
48k rubber key screen corruption[IMG][URL=http://img195.imageshack.us/i/img7398g.jpg/][IMG]http://img195.imageshack.us/img195/5563/img7398g.th.jpg[/IMG][/URL] Uploaded with [URL=htt…
... but im bereft of a multimeter unfortunately[/QUOTE]
hmm ... -
128+ and Divide+ not working togetheri think theres something wrong with my 128 (toastrack), divide+ just wont work on it, corrupted screen on bootup and with big thick black bars rollin…
... the 5v regulator with a multimeter (that I have to admit ... -
Upgrading 16k MemoryHi All I have a fully working issue 2 16k spectrum and a broken issue3 48k spectrum (It's showing the black and white bars and some flashing blocks)…
... . I don't have a multimeter so I can't check ... -
Upgrading 16k MemoryHi All I have a fully working issue 2 16k spectrum and a broken issue3 48k spectrum (It's showing the black and white bars and some flashing blocks)…
... shop. I also got a multimeter so I could check the ... -
Spectrum 48k boots but small black dots start appearingAnyone any ideas where I should look first?
Cheers Roko, thats exactly whats happening, I know its not the ULA, ive tried a good one in there and same results, the z80 and all memory is soldered in, is there a way to test these chips with a multimeter to save me desoldering everything? -
Spectrum 48k boots but small black dots start appearingAnyone any ideas where I should look first?
... tested 'in situ' with a multimeter... Not really, I tend to ... -
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…
... ... Google "How to use a multimeter", and you'll find lots ... common spectrum faults, a basic multimeter will probably do everything you ... -
Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…
... an Eprom programmer, and a multimeter, but nothing more than that ...
