Got my RGB scart lead today from Amigakit and was looking forward to some nice and clear screen Amiga goodness this morning. Unfortunately, I only get the below. It’s a bad picture I know but basically the screen is really black with lots of interference lines. Occasionally it drifts from being a terrible picture to just being a really bad picture.

I've tried the RGB and AV scart sockets on the LG telly. I'm pretty sure the monitor socket on the amiga's ok as when I bought it, it was demo'd to me connected to a multisync monitor and looked great.

Any ideas?

http://www.datacenta.it/Photo1.jpg

ETA http://www.datacenta.it/Photo2.jpg

Hooked it up to another LCD and get a washed out white picture with something just visible at the top. Think its either the cable or the connector but leaning towards the cable?

Hiya Franko,

Thanks for that. I've got the hood open on each end. I dont know if this is relevant or not but I cant measure resistance on pin 8 whereas I can on pins 16 & 20.

I've been using this as a guide ...

http://www.ianstedman.co.uk/Amiga/amiga_hacks/Amiga_SCART/amiga_scart.html

I can measure the 75 and 330 ohms on pins 16 & 20 so that looks fine but like I say not the 1k on pin 8. I have to confess, I dont really know what that means and if thats good or bad!!

ETA the TV's are a 32" LG 32LG2100 and a 17" Vistron no name brand.

Pin 20 on the Scart end is used by the Amiga for the composite sync signal  (on the TV itself this is usually for composite video) and should be fine...

Pin 8 (Scart side)  I always just connect up directly to pin 22 on the Amiga (+12v)

Pin 16 (Scart side) again I always just connect up directly to pin 23 on the Amiga (+5v)

I have always made my own cables up and never had the need to put resistors inline on any of the connections and have never had any problems getting them to display a picture. The only time I came across this was with an Amiga I bought on eBay which came with an Amiga To SCART RGB cable it wouldn't switch my TV in the living room to RGB (resulting in pictures much like you posted), when I opened up the hoods and spotted the resistors I removed them and re-soldered the wires up directly and it worked fine after that...

It's up to yourself, but if there are resistors inline with pins 16 & 8 I would remove them and solder the wire up directly, in 25 years I've never damaged an Amiga or TV by not having these resistors in the cable...

PS: If your not too sure about using your meter to measure the voltage then I would advise against it as you could damage your Amiga if you do it wrong... :eek:

Looking at that pic I'd build me own cable (use good quality OFC shielded cable more expensive but worth it) as you shouldn't be getting that ghost image like that appearing...

I've made one before 12 metres long and still got a prefect picture, could still be something to do with the TV though, try and get me the Make and model no and I'll see what I can find out...

Modifying a perfectly good cable based on hear-say in this forum is not a wise thing to do.

Every Scart cable from us has been made to modern LCD TV standards and is fully wired.  The cable has been assembled correctly and has been Quality Tested before despatch to customer.  We test on a wide range of models and use a widely used schematic.

Forums can be a good source of information sometimes but it is better to consult with your dealer before resorting to modifying the product and jumping to conclusions that there is a fault in the product.

Ahem... no one said there was a fault in the product...

I simply suggested that he check the product was fully wired and stated that I thought it would be...

It's not "hear-say" it's 25 years of experience making such cables for my own use that I advised him with. Modern LCD TVs can be quite hit and miss when it comes to using an Amiga RGB signal with them (as well as DVD Recorders) and in some cases it take a bit of tinkering to build a cable that suits a particular set...

Hi Matthew?? I note the US numbers and if so, I didnt buy it from the US.

I dont think anyone has said as such that there is a fault in the cable.

It just doesnt work :-)

I have to take issue with it being a perfectly good cable otherwise it would work :-) I've also tried it on my 40" samsung and I couldnt get a viewable picture on that either. So thats 3 different brand LCD's. Not got a CRT to try it on but I to be honest I bought it for LCD compatibility. Like I put earlier, it might be the DB23 connector amiga side but I've seen that working fine connected to a monitor.

Anyway, I'm happy to cut the ends of and redo it. All part of the amiga fun and games.

Dont take it personally. I'm just getting the benefit of forum experience. Enyoy the sunshine and the rest of your weekend.

Some LCD scarts dont accept RGB signals at all, only Composite.
If you have more than one scart socket, generally Scart 1 is the only one that will accept RGB.

On my own Samsung, if I used any socket other than Scart 1, I get white screen.

You could try using the Composite video output as the sync for your RGB. See the Stedy diagram for info.

Hello Alex,

So which pin should I solder to where instead?

Thanks

So which pin should I solder to where instead?

?? You linked to the diagram!

An RCA plug (which goes in the yellow RCA socket on the rear of the A1200) Wire it to pin 20 & pin 17 (disconnect whatever normally comes from 23-pin) as per the diagram.