T&L Publications

Hello I have a GeForce 5200 video card with the s-video connector plugged into a s-video to scart cable that then is plugged into a switchable two way scart box that this then plugs into my TV (I only have 1 scart plug at the back of my TV)<p>the software that runs my video card is Nvidia. I am not ...

Hi all Ok many things to try out, and some more confusing infomation that i need to sit down. I will get back to all this but I am away for 2 weeks from the 8th June. My partner and I are cycling to Cardiff then cycling the London to Brighton Bike Ride on the 19th. I will check emails on Tuesday nig...

Hi Gorgon Ooops Yes I have connected together all the leads on the top row. Sorry missed that out on the graphics. I have now changed it.<p>Ok i have not lost all heart now, thank you both! So i need to do what Sofaspud advises and maybe need to look at using different Si Diodes.<p>The Si Diodes tha...

Hi Gorgon<p>The idea of removing one of the IR LED was due to my original problem, some people questioned why there was 2 IR LED. So to see if the circuit actually needed 2 of them i took one out. The device stoped working. I bought all components again, put it together, it worked. I took the IR LED...

Hi SofaSpud, I hope you are still about. Here goes.. I have wired my 9V battery to the right GND & DTR (TXD). Ok once all the readings settle down. Reading across the 1K is 0.00 D2 is 0.32 2.2K is 0.00 Cap is 9.4 D1 is 0.32 (1st) 10K is 0.00 (2md) 10K is 0.00 3.9K is 0.00 (1st) Silicon Diodes is...

Hi so that Sofaspud or anyone else, does not start to think that i have given up on this, i am posting this. I have bought a 9V battery and will attempt to get back to mesuring voltages maybe this weekend.<p>Many thanks
Mike <p>[ May 26, 2005: Message edited by: scag ]</p>

Here is i hope a clear pictorial representation of what my device looks like.

Hi Sofaspud<p>Ok (thank you for pointing out my errors) i have the DMM switched to 20V. A reading across the green and blue wires is -10.22 Oh this is with the black lead from the DMM on the green wire. When the leads are swaped over its the possitive of the reading. Not sure which color lead should...

Ok the x2 IR LEDs The IR LED (that is nearest to the PNP) has the long leg towards the PNP the short towards the next IR LED. The second IR LED has its long leg towards the first IR LED and the short leg towards the bottom line (??? hope that makes sense)<p>I turn the DMM dial towards the diode sett...

Hi Sofaspud<p>many thanks for the support<p>Ok the components... NPN (QR40 2N3904) (http://www.maplin.co.uk/Mproduct.asp?oc=QR40T) PNP (QR42 2N3906) (http://www.maplin.co.uk/Mproduct.asp?oc=QR42V) D1 & D2 (QL79 1N4007) (http://www.maplin.co.uk/Mproduct.asp?oc=QL79L) Silicon diodes (QL80 1N4148) ...

Hi All<p>Just a quick update, i did buy a DMM. I bought x2 of the original IR LED and had my device working for an hour, tried the device with only just x1 IR LED. It stopped working!! Even when i put both IR LED back. The DMM gives me reading across every component but no obvious clue (e.g. somethi...

Hi sofaspud<p>Many thanks for the response. Yes i do think if im going to be able to give any actuall information that means something to guys like yourselves i need to buy a DVM (i now know what a DVM is!!). Im off to Liverpool this weekend so shall be buying one.<p>I will do some learning (online ...

Hi Stephen<p>The LD271 was the one that Maplin had, so i bought x2, infact a whole set of components again, this time mounted them all on a PCB board. Nothing!! Still does not work. Thats with a double 4700uF capacitor.<p>Do you think i may have damaged my PC's serial port in any way?<p>This is so a...

Hi Edd<p>No i am very sure i did not get them reversed. Its a shame i dont have a digital camera as i could show you. I have mounted all the components inside a little box with the IR LED sticking out two holes. As i only unsoldered one IR LED there is only one way of putting it back.<p>Yes having t...

Hi Stephen<p>Ok its good that now i know what type of IR LED i need to have. My IR LED is 880nm i beleive.<p>I have seen on the Maplin website a couple IR LED that are near to 950nm... http://www.maplin.co.uk/Module.aspx?ModuleNo=2262&TabID=1&WorldID=&doy=30m4 http://www.maplin.co.uk/Mod...