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Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... lines are actually set to 1 (+5V). So actually reading IN 0 ... for a pattern with a 1 in it. So an official ... , as that requires detecting a 1 in the pattern. However, you ... -
RGB video issue on +2 and +3. Signal high?I have a couple of +3's and a new +2a that arrived today. When I plugged in the +2a using my RGB lead from Retro Computer Shack I was reminded of a n…
... which is intended to supply 1.5V into 75 ohms. Again, V ... /R=I so 1.5/75=0.02A or ... -
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…
... removed) voltages are (pin | value):1 | -5v 16 | 0v2 | 2.1v ... 1.23v5 | 1.8v 12 | 2.04v6 | 2.1v 11 | 1.59v7 | 1 ... sockets, voltages on IC13 are:1 | -5v 16 | 0v2* | 3 ... 10* | 2.36v8* | 10.5v 9 | 4.97v
... -
Picture issues with LCD televisions.As I don't currently have anywhere sensible to put my CRT television, I wanted to switch to a flatscreen LCD for the time being. I have however encou…
http://www.worldofspectrum.org/forums/search?Search=%221.5V+battery%22&CategoryID=22
[b][i]Mark[/i][/b] -
Non working issue 3BGuys Hope you can help me here (or maybe, someonene from Europe could take a look at it? I've already tried different ULA, CPU, ROM and low RAM (…
Ok, so the voltages on low RAM sockets are ok:
1: -5V
8: 12V
9: +5V
Wondering - what's next. -
Non working issue 3BGuys Hope you can help me here (or maybe, someonene from Europe could take a look at it? I've already tried different ULA, CPU, ROM and low RAM (…
[quote="mRqS;857774"]Ok, so the voltages on low RAM sockets are ok:
1: -5V
8: 12V
9: +5V[/quote]If that is what the actual voltages are, then yeah, that’s fine :-)
[b][i]Mark[/i][/b] -
Is it possible to have a Single Drive on Betadisk as Drive Letter B (other than A)Hello, I?ve problems with getting two drives to work on my Betadisk v4 Interface: I?ve tried a second drive as slave drive but can?t get it to work…
... it should go back to 1 (+5V). When reading from Drive B ... don´t go back to +5V but only to +3V. With ... -
Spectrum 48k Power Supply?Guys - I've got a Spectrum 48k inbound from the UK. I want to scrounge a power supply to use when it arrives. What size jack did it use and what ar…
... br /> Recom R-785.0-1.0
[url]https ... converter-dc-to-dc-1-5v-to-5-5v/dp/1793143[/url]< ... br />
Traco Power TSR 1- ... .rapidonline.com/tracopower-tsr-1-2450-single-output-dc- ... com/tracopower/tsr-1-2450/converter-dc-dc-5v-1a-sip/ ... -
I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…
... box. It should read around 1.8V. If it still reads ... be opened. I read with 1.5V across pin 16 and 18 ... -
I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…
... ="ivanb303;921938"]I read with 1.5V across pin 16 and 18 ... /> Internal resistor (inside the Spectrum): 1 kOhm
Internal resistor (inside ... /> Let’s replace the internal 1 kOhm resistor with 330 Ohm ... -of-the-road value of 1.25V.
[quote=" ... -
I can't get my +2B to work over RGB to SCART.Hi so I have a black +2B and no matter what I do I get a black screen using the RGB-SCART scart cable (specific for the model ) and I'm using a SCART…
... /> 16 - 12V- RGB BLANKING - reads 1.5v
7- BLUE - BLUE - reads ... -
Trying to repair my old 48kAbout 30 years ago I had a spectrum 48k, it had some troubles in the end, it was very unstable when it was cold, so I had to warm it up an hour befor…
... does not deliver +12V & -5V and you have therefore got ... be as follows:
- pin 1: -5V or thereabout and no lover ... 8: +12V,
- pin 9: +5V,
- pin 16: 0V.
Cheap IPod Car Chargers.I brought an IPod in car charger from Hyper Value (Wales answer to pound stretcher) for £1.50 the other week. Well you get what you pay for, de…
... answer to pound stretcher) for £1.50 the other week.
battery thus rendering it fried and ... technical specs (huh technical for £1.50) . It said the input ... .... Its supposed to take around 5V.
So I got ...Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…
... the xtal and the adjacent 1.8 volt supply traces off ... a 3.3v chip with 5v tolerant inputs).ZXDS 0.9.2 Beta 1...Hi Folks, Sort of new to the ZX DS stuff so I thought I would start by trying [B]ZXDS [/B]out in the DS emulator [B]DESMUME 0.9.7 for Windows 64 bit…
... ]ZXDS 0.9.2 Beta 1 [/B]in to a ZXDS ... /> [CODE](F) DESMUME
(F) Battery
(F) Cheats
(F ...R-785.0-1.0 5v 1A DC-DC converter Group Order.As discussed in the other thread there seems to be interest in getting a consignment of these devices. I can get 50 @ [strike]?4.40[/strike] and pos…
... buying some? These are the 1 Amp supplies.
EDIT ...Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…
... /super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url ... ram memory to 1024 kB (1 MB) + 512kB reprogrammable flash rom ... signals RGBI,sync,35MHz,GND,+5V (ideal for connect VGA convertor ...ZX Spectrum 48K Issue 3, loss of -5V rail.Hi all, I've googled this problem and poured over the electrical diagrams for the circuitry concerning the power supplies and I believe I know what …
... present and correct except for -5V which measures at -0.18V ... cause me a loss of -5V anyway). All diodes function correctly ... 12V on one side, and -1.33V on the other. I ... % clear to me how the -5V is derived, but I'm ...Issue 1 schematics?I'm fault-finding an issue 1 board. So far I've found a hot memory chip and snipped it's supply legs, then swapped the burnt-out 7805 for a switched…
... 'm fault-finding an issue 1 board. So far I've ... . Now I get a healthy 5V. No coil buzz though, and ...Faulty Issue 1Hi all, thought I'd document my efforts in getting another speccy working. I've never done this before so please bear with me... I recently took a p…
... and surprise surprise my -5V is missing. I replace ... org/forums/discussion/51557/issue-1-schematics#latest"]here[/url]. ... on and measure -4.5V with a slightly quieter ... white columns, with some 1-character-wide flashing yellow ... with the Issue 1 motherboard?voice sampling with ADCs and DACsHi sorry it's off topic, but I wonder if anyone can help with an electronics problem. I'm trying to build a project for A-level electronics, using an…
... free? (A small lead acid battery and a voltage regulator is ... 0 and logic 1 are not 0v and 5v as you might ... is at logic 1, the CMOS part gets +5v rather than a ...speccy +2 rgb socket driving me crazy!until today I was using RGB pins 1 and 2 for composite out. Tonight I suddenly get mad and decided to build a proper RGB Scart cable. Having read P…
... Where can I get 1-3v from board very easly ... t want to use a battery on a cable :) ( ... I'm going to try battery first, I hope it works ... have a handy +5v/0v line (steady +5v, not a ... in series from the 5v to 0v line will ... give 2.5V at the junction of ...power supply questionHi all, got my +2 ( Grey) back home to Canada. monitor should display ok, and I have a power supply I think will work. specs are : Input 120 V…
... volt. Measure a new 9v battery and often it will be ... when using a new battery?
.5v is insignificant.
1 volts.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…
... is connected to composite video 1,2V.
AFAIK, composite ... video is not 1,2V. it may be its ... .
try it with battery or +5V from PSU (adding a resistor ...Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…
... -Dual-12V-3800mAh-5V-5600mAh-Rechargeable-Li-battery-/320494375564?pt=US_Batteries ... Output 12v 3800mAh & 5v 5600mAh eBay Buy It Now ... .inkfrog.com/thumbn/chcctvcam/YW15-1-1.jpg=450[/img]
... />
Looking at this battery I would dismantle the unit ...A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…
... -down the contents of the battery backed-up SRAM chip may ... , due to spikes on the 5V supply line.
This ... ] .
Users of lot 1 boards, experiencing SRAM contents corruption ...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. …
... will drop around 1V to 1.1V. If the rectifier is ... that you get from a battery.
"Raw" rectified dc comes ... "smooth" dc voltage from a battery (or regulated dc supply line ... it stays within 5% of +5V :)
I hope this ...IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…
... are:
1. Spikes on the 5V line at power-up ... system from 'tape', unless the battery was exchanged, and even then ...128K RGB Display problem.I have just got my hand on a toast rack, but when powered and connected to the telly the picture jumps horizontally at random intervals. Could it be…
... /> Pin 8 should be between 5V and 7V for a widescreen ... signal, or between 9.5V and 12V for normal 4 ... signal. Voltages less than 4.5V may switch off the SCART ... 18. Get a AA size battery holder and connect the black ... via a 100 ohm resistor (1/4W, 250mW) to pin 8 ...
