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Sinclair PC 200 - RF questionIs there any compatibility regarding the RF output of the sinclair pc 200? This week i got my 2nd unit and in both of them, when connected through R…
... caused by 50/100 Hz power supply.
You did ... mentioned before with the +2 like schematic) to avoid additional effects caused ... -
Using a QLI have the opportunity to pick up a QL in distress, having never even set eyes on one before I am not sure how much fun there is to be had with them.…
... the screws lost). I cant power it up until I sort ... between the ULA and the 2 ROMs, just above the tweak ... ref to it on the schematic I found (may not be ... -
plus3e simple ide interface problemhi, I prepared a 8bit simple ide interface 3 days ago, but I got problems (with or without ide cable connected). 1.First of all, I have to press re…
... ? can you draw me a schematic so I won't make ... mistake.
Also, I power my harddrive with an external ... very short ide cable, about 2 inch, I'll be using ... -
ZXPROJECT update: a replacement for TEA2000Just go to [url]http://www.zxprojects.com[/url]
... Can you tell me what +2 model have you got? I ... ...[/QUOTE]
ZX Spectrum +2:
LAYOUT
[ ... /plus2layout.png[/url]
POWER CIRCUIT
[url]http://zxm ... /plus2pwr.png[/url]
SCHEMATIC
[url]http://zxm.speccy ... -
Timex 2048 documentsHi, I got Timex 2048, seems to work, but no colors on screen :cry:. Neither TV out, nor Composite works. ULA fault ? It seems TC 2048 uses MC 1377 a…
... from other users.
Issue 2 I mentioned previously is in ... , however matches logic for issue 2, crazy...
I change name ... think my Timex has some power problem which may be the ... have issue 3 that matches schematic I am going to draw ... -
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…
... 12V pin of the power supply is actually supplying ... a black +2 (the one with the power supply that connects ... a grey +2 with the earlier Spectrum-style power jack, you ... datasheet or look up the schematic to find the right ... it's a grey +2 and the +12V supply is ... -
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…
... the 12V pin of the power supply is actually supplying ... a black +2 (the one with the power supply that connects ... a grey +2 with the earlier Spectrum-style power jack, you ... datasheet or look up the schematic to find the right ... a 128 not the +2 or +3 The whole ... -
zx 48K PSU and C116It seems that ZX 48K and Commodore C116 have identical power supply, 9V 1A, DC, minus in centre. Can someone confirm it?
... be compatible with the Spectrum power supply only provides +9volts DC ... at the better part of 2 amps.
[B]However ... facts, and the C16 (C116) power supply does indeed provide 9 ... ]here is a schematic of its connectors (including power)[/url]
Sinclair Joystick Ports on the +2Can someone just confirm something for me that the FAQs don't seem to address, or overlook in their explanation. I know that covention (that pre-dat…
... the schematic I strongly suspect that
a) joystick 2 is 12345 ... found another error in my schematic :mad:
To check ... properly I would have to power the +3 up and I ...Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…
... same as written) or some power of 2 (written & what's ... . Then you can use the schematic to map that bit(s ... /> Or just take 1 or 2 memory locations, POKE a few ...Spectrum +3 FavourCan a kind soul with a multimeter and a +3 measure the resistance on the power socket between the 5V and the ground? I have a dead +3 that only has 0…
... take a look to the schematic...
[url]http://hardware.speccy ... performed by a H1061 medium power transistor, configured as emitter follower ... (6.3-0.7)*sqrt(2)=7.91V
If ...My +2 Guinea PigA grey +2 I bought to perform my experiments on, it's had it's ROM replaced with a 27C256 with Open SE Basic onboard, combined with the Gosh Wonderfu…
... [/IMG]
With this schematic together with the following (no ... of the expander to 5V (power)
// Connect pin #10 ... (common ground)
// Connect pin #2 of the Arduino to a ... /> Adafruit_MCP23017 mcp;
int pushButton = 2;
int x=1;
Altera CPLD vs Xylinx FPGAI will dig into the world of FPGA's, mainly to find something that can replace one or more GALs for my current and new projects. And it's never bad t…
... IDE you'll use either schematic design (whereby you can ... start out with designing by schematic - and it's ... be programmed on every power-up by the flash ... It's about 1/2 the resources of a ... /> XC95288 - 288 macrocells - about 2 Spectrum ULAs.
It ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... and mislabeled ones on the Schematic available in WoS.
... lot of confusion about the power 9V and 5v. The ... goes to all the chips power connections and to give ... are 4 extra "pins", 2 on each side of the ... I'm only drawing the schematic. I have a lot to ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... well as joystick and PS/2 ports. (You can't ... and mislabeled ones on the Schematic available in WoS.[/QUOTE]< ... wired up in the DISCiPLE schematic looks correct. For a ... goes to all the chips power connections and to give ... are 4 extra "pins", 2 on each side of the ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... WoS.
The schematic must have mistakes on purpose ... issue.
In the schematic you can see that there ... there for the 5v power supply filtering network, only ... were available, a proper schematic of this interface can ... from a ISS 102-2, this is the closest ...Spectrum 128K +2 problemhello, i am try to repair my spectrum 128k +2 grey, i remove all ram chips and i have some new ones spares, now i have remove all ram chips, i want …
... screen
only 2 vertical black and white bars ... to white almost immediately after power up/reset, before accessing ... speccy.cz/other/zx128plus2-iss3-schematic%28corrected_v01%29.png"]zx128plus2- ... chip (note that pin 2 should be correctly connected to ...Gifts from Russia (again)Hey there, zorel from zx-pk.ru is manufacturing PCBs again. Keep in mind you'll have to be good with soldering, as I don't intended to offer assembly…
[QUOTE=kpuchatek;692437]Which schematic do you use to build ... 2012 - with very minor improvements, 2 blocking diodes on the VG93 ... for the floppy drive, molex power socket - nothing that adds any ...Big brick sized +2 PSU schematic.Might anyone here point me to the schematic for one of these? A bit of searching has found one for something similar, but it clearly isn't exactly th…
What is different? it might be a mistake on the schematic, or something to do with the power rating being different for the +2.
Why do you need the schematic btw? is the PSU not working?Issue 2 crashes after about 30 minsHi Guys, I have an Issue 2 zx spectrum that seems to get graphic corruption after about half hour of playing, then finally falls over and crashes. …
... reverse polarity protection and a power on LED. If you wish ... is the provisional circuit diagram / schematic:[IMG]http://farm4.staticflickr.com ... /> ZD1 .... 8.2V 500mW ZPD8.2 Diotec Zener Diode 500mW 8 ... green LED
TR1 .... NPN power transistor, IC max of 1 ...ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... ? Meter? Logic Probe?
[*]What power supplies do you have? Electronics ... remove the load from the power area to ensure the -5 ... / C41 / R55 (see the schematic in the +2 service manual). Myself, I ...ZX spectrum 128K + 2 (Grey one :)Hi all, I'm trying to revive a dead ZX 128K +2 (the grey one). The regulator was damaged and seemed to be feeding 7.8Volts onto the pcb. Yikes ! I…
... continue with the TR8 / TR9 power supply circuit, lets get an ... depending on the country the +2 was suppose to be sold ... ). For details of a typical +2 set up (plus some manufacturing ... ] and cross reference with the schematic [URL="http://www.worldofspectrum.org ...Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
... next info I make from schematic only, without testing in ... specially for ZX Spectrum 128/+2(grey) models, but ... xxxxxx0x)
After POWER-ON or RESET is MF3 ... is same as in ZX128/+2, but detect only writing ... (orig.ZX128/+2 contain bug and port ...Opus Discovery OddnessHi everybody, I'm busy trying to repair an Opus Discovery for a customer. It's proving to be quite frustrating. First off, the LM317T regulator fo…
... has been burned with a 2.2 ROM (the old one was ... the power circuitry in the Discovery 1? I found a schematic for ... the control circuitry, but not the power.
2.31 Quickdos ROM should be ...Buzzing Grey +2This is mentioned in another thread but I thought I had best start a new one regarding this. Basically Ive done TR4, put a 5.5k resistor to R38 and …
... time to look at my +2, but from what Macc has ... smartphone so looking at a schematic is not practical. But have ... or very near the DC power jack.
[B][I ...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... the microcontroller and the VHDL / schematic entry in the CPLD) had ... rewritten the code to capture 2 spectrum display files from ... up a lot of processing power in the propeller chip (as ... │ voice vibrato pitch: 48 ─ ? 1/2 octave swing │ │
│ │ vr │ ...Betadisk 128 in production.Pcb is in factory, i expect ready device in next 2 weeks. [URL=http://www.fotosik.pl/showFullSize.php?id=7b4cc1b97c1c4703][IMG]http://images52.fotos…
... ; If you use ZX128/grey +2 then will work after RANDOMIZE ... port 7FFD as on ZX128/+2 and it's incompatible with ... you must after each reset/power-on write OUT 32765,16 ... after power-on/reset is beta128 enable :-) This design in schematic is ...Cooking toastrack... the dreaded smellI powered up my Spectrum 128 (heatsink model) yesterday only to see what looked like an out-of-tune picture on the television. I'm using a scart adap…
... present.
The schematic for the power conversion circuitry for the ... for shorts to ground
2) Check and renew the appropriate ...Home built Eprom ProgrammerHi all, Thought I'd bring up this old subject once again.............I built a home made Eprom Programmer for use with my ZX Spectrum back in the 80…
... across it, and possibly the schematic diagram I sold with it ... hands. It's in a 2-tone plastic case with a ... couple of Spectrums that would power up with my own name ...Modifying Commodore datacorder's for Speccy use. Is it possible?Just wondering if it's possible to modify a Commodore datacorder for use with the Speccy, or if anyone has. My assumption is the output and input on …
... spectrum.
This is the schematic:
[img]http://ftp.martnet ... mH or a resistor of 2 Ohm to avoid reset of ... motor from the computers 5V power
Ingo ...
