a1200 on plasma tv

THERAVEN · 09 June 2006, 20:13

hi all
is there a setting to use as my 1200 wont run through my plasma via scart..?
also will it work on one of those lcdtv things?
thx again
theraven

thomas · 09 June 2006, 20:17

Why not ? The Amiga outputs a perfect TV signal, it should work on all kinds of TVs. Just make sure the TV supports RGB input on the Scart connector, otherwise the quality might be poor. And of course even on a HDTV you won't get a higher resolution than 640x512 plus overscan.

THERAVEN · 09 June 2006, 21:10

thx for replymate
it is set on rgb but all i am getting is a white screen...
any ideas?
thx again
theraven

DDNI · 09 June 2006, 23:17

I had this on a scart cable i made without the often recommended capacitors.
A new cable with them worked fine on the same miggy and TV

gotmashed · 09 June 2006, 23:21

i use mine on my lcd it doesnt all ways give a great pic have to take the rca lead out and plug it back in that normaly sorts it

THERAVEN · 09 June 2006, 23:51

thx lads
so do i need to get another lead?
cheers
theraven

DDNI · 09 June 2006, 23:53

did you make the lead yourself? Did you check to see if the lead has capacitors on it? Maybe try a different TV?

gotmashed · 09 June 2006, 23:55

might sound dumb but ive done it a few times are you puting the rca lead in the right hole ? as theres 2

THERAVEN · 09 June 2006, 23:58

the lead is standard a1200 scart. and i am putting in the video port on the 1200
still white screen if put on amiga monitor works fine
thx again
theraven

patrik · 10 June 2006, 00:15

@THERAVEN:
Can you check if the scart cable works on a regular TV?

@DDNI:
The scart cable should not have any capacitors. Here you will find a correct schematic for an Amiga scart cable.

@gotmashed:
The composite output via the yellow rca connector will at best give an ok picture on a regular 50Hz TV. On a lcd or 100Hz TV which samples the signal digitally and thus are much more sensitive, a composite signal will give a quite crappy image quality. You should definately use a RGB scart to get an acceptable image quality on such equipment.

THERAVEN · 10 June 2006, 00:42

will check tommorow
thx lads

THERAVEN · 10 June 2006, 09:33

hi all
just tried the 1200 on 2 diff portables none of them showed pic through scart but rf was ok..any ideas??
thx again
theraven

DDNI · 10 June 2006, 10:14

@patrick I meant resistors on the 12v lines....

quahappy · 10 June 2006, 10:22

Ya scart lead is buggered then.

The amigadeals site is a good source for Amiga scart leads - cheap an' all.

Might have one spare though. I'll have a look laters.

At least you can use rf for the time being. Crap picture quality I know.

quahappy · 10 June 2006, 10:28

Just a thought.... and probably an obvious one, but one I checked before buying a new one. Are all the pins in the Scart end straight (not bent in any way), and the actual casing round the scart isn't loose? No exposed wires or anything?

you never know....

THERAVEN · 10 June 2006, 10:43

hi mate
thx for replys
if lead is nackered would it still work ok on amiga monitor as it works ok on an old monitor?
just took the lead case off and there is a total of 6 wires inc earth is that correct?
cheers

quahappy · 10 June 2006, 10:59

Quote:

Originally Posted by quahappy

Might have one spare though. I'll have a look laters.

Nope is the answer to that one! Only have Amiga lead with phono leads and I need that

Hmmmm..... confusing me why it works with your old monitor and not the two tv's or plasma tv now. Unless you have a custom-make scart lead that worked specifically for your old monitor instead of the standard Amiga to TV scart lead? If this is the case, pins may be wired differently to standard leads but I wouldn't have thought so.... Apart from that, I can't advise any further - sorry mate

THERAVEN · 10 June 2006, 11:12

its weird mate the 1200 and the monitor are from 2 different places!!!!
the scart does not seem to work in any other tv...

quahappy · 10 June 2006, 11:40

See you've edited your post....

8 pins are used in a standard Amiga to TV/Monitor Scart lead. I made a custom Amiga to Scart lead years ago and just found a schematic I used to make it which I'm pretty sure is the "standard" connections..... shoot me if I'm wrong.

Scart side:

Pin 15 - Red
Pin 11 - Green
Pin 7 - Blue
Pin 20 - Composite Video In
Pin 17 - Composite Video Output common
Pin 6 - audio in - left channel
Pin 1 - Audio in - right channel
Pin 4 - Audio ground (earth)

On the Amiga connector (DB23 female connector)

Pin 3 - Analog Red
Pin 4 - Analog Green
Pin 5 - Analog Blue
Pin 10 - Composite Sync
Pin 16 - Video ground
Pin 6 - Left phono
Pin 2 - Right phono
Pin 4 - Left and right phono

Note: I believe though that Pin 8 required further modification to allow them to force full screen mode on all new models of tv's that use multiple display formats. Never got round to this though. Annoying thing is, I can't remember specifically what monitor I had at the time it worked with! extra note... It's been 11 years and my home-making projects are over.

.... but ignore all that and try acquiring a new Amiga scart lead. At least now you've tested it on a few tv's with dead end results.

patrik · 10 June 2006, 12:55

@DDNI:
Aah, ok.

@Quahappy:
Yeah, you need to connect pin 8 of the scart via a 1kOhm resistor to pin 22 of the 23-pin dsub (+12V). Pin 16 of the scart also needs the correct voltage - it needs to be connected via a 150Ohm resistor to pin 22 of the 23-pin dsub.

These tells the TV to use RGB input in the scart connector instead of the composite/s-video lines. Something which a rgb monitor most likely has per default. Btw, check out this schematics.

@THERAVEN:
Check if you have this connection in your scart.

Also make sure there are no resistors on the red, green, blue and sync signals either on the dsub (pin 3, 4, 5, and 10) or scart side (pin 15, 11, 7, 20).

It would probably be easiest to just get a new cable like Quahappy suggests thought.

09 June 2006, 20:13	#1
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	a1200 on plasma tv hi all is there a setting to use as my 1200 wont run through my plasma via scart..? also will it work on one of those lcdtv things? thx again theraven

09 June 2006, 21:10	#3
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	plasma thx for replymate it is set on rgb but all i am getting is a white screen... any ideas? thx again theraven

09 June 2006, 23:51	#6
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	lead thx lads so do i need to get another lead? cheers theraven

09 June 2006, 23:58	#9
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	lead the lead is standard a1200 scart. and i am putting in the video port on the 1200 still white screen if put on amiga monitor works fine thx again theraven

10 June 2006, 00:15	#10
patrik Registered User Join Date: Jan 2005 Location: Umeå Age: 43 Posts: 922	@THERAVEN: Can you check if the scart cable works on a regular TV? @DDNI: The scart cable should not have any capacitors. Here you will find a correct schematic for an Amiga scart cable. @gotmashed: The composite output via the yellow rca connector will at best give an ok picture on a regular 50Hz TV. On a lcd or 100Hz TV which samples the signal digitally and thus are much more sensitive, a composite signal will give a quite crappy image quality. You should definately use a RGB scart to get an acceptable image quality on such equipment. Last edited by patrik; 10 June 2006 at 00:46.

09 June 2006, 20:17	#2
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,985	Why not ? The Amiga outputs a perfect TV signal, it should work on all kinds of TVs. Just make sure the TV supports RGB input on the Scart connector, otherwise the quality might be poor. And of course even on a HDTV you won't get a higher resolution than 640x512 plus overscan.

09 June 2006, 23:17	#4
DDNI Targ Explorer Join Date: Mar 2006 Location: Northern Ireland Posts: 5,431	I had this on a scart cable i made without the often recommended capacitors. A new cable with them worked fine on the same miggy and TV

09 June 2006, 23:21	#5
gotmashed Registered User Join Date: Apr 2006 Location: isle of wight Age: 45 Posts: 83	i use mine on my lcd it doesnt all ways give a great pic have to take the rca lead out and plug it back in that normaly sorts it

09 June 2006, 23:53	#7
DDNI Targ Explorer Join Date: Mar 2006 Location: Northern Ireland Posts: 5,431	did you make the lead yourself? Did you check to see if the lead has capacitors on it? Maybe try a different TV?

09 June 2006, 23:55	#8
gotmashed Registered User Join Date: Apr 2006 Location: isle of wight Age: 45 Posts: 83	might sound dumb but ive done it a few times are you puting the rca lead in the right hole ? as theres 2

10 June 2006, 00:42	#11
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	lead will check tommorow thx lads

10 June 2006, 09:33	#12
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	update on plasma hi all just tried the 1200 on 2 diff portables none of them showed pic through scart but rf was ok..any ideas?? thx again theraven

10 June 2006, 10:14	#13
DDNI Targ Explorer Join Date: Mar 2006 Location: Northern Ireland Posts: 5,431	@patrick I meant resistors on the 12v lines....

10 June 2006, 10:22	#14
quahappy Born again WinUAE user Join Date: Mar 2006 Location: South Yorkshire, UK Age: 55 Posts: 1,667	Ya scart lead is buggered then. The amigadeals site is a good source for Amiga scart leads - cheap an' all. Might have one spare though. I'll have a look laters. At least you can use rf for the time being. Crap picture quality I know.

10 June 2006, 10:28	#15
quahappy Born again WinUAE user Join Date: Mar 2006 Location: South Yorkshire, UK Age: 55 Posts: 1,667	Just a thought.... and probably an obvious one, but one I checked before buying a new one. Are all the pins in the Scart end straight (not bent in any way), and the actual casing round the scart isn't loose? No exposed wires or anything? you never know....

10 June 2006, 10:43	#16
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	lead hi mate thx for replys if lead is nackered would it still work ok on amiga monitor as it works ok on an old monitor? just took the lead case off and there is a total of 6 wires inc earth is that correct? cheers Last edited by THERAVEN; 10 June 2006 at 11:00.

10 June 2006, 11:12	#18
THERAVEN Registered User Join Date: Jun 2006 Location: london Posts: 20	prob its weird mate the 1200 and the monitor are from 2 different places!!!! the scart does not seem to work in any other tv...

10 June 2006, 11:40	#19
quahappy Born again WinUAE user Join Date: Mar 2006 Location: South Yorkshire, UK Age: 55 Posts: 1,667	See you've edited your post.... 8 pins are used in a standard Amiga to TV/Monitor Scart lead. I made a custom Amiga to Scart lead years ago and just found a schematic I used to make it which I'm pretty sure is the "standard" connections..... shoot me if I'm wrong. Scart side: Pin 15 - Red Pin 11 - Green Pin 7 - Blue Pin 20 - Composite Video In Pin 17 - Composite Video Output common Pin 6 - audio in - left channel Pin 1 - Audio in - right channel Pin 4 - Audio ground (earth) On the Amiga connector (DB23 female connector) Pin 3 - Analog Red Pin 4 - Analog Green Pin 5 - Analog Blue Pin 10 - Composite Sync Pin 16 - Video ground Pin 6 - Left phono Pin 2 - Right phono Pin 4 - Left and right phono Note: I believe though that Pin 8 required further modification to allow them to force full screen mode on all new models of tv's that use multiple display formats. Never got round to this though. Annoying thing is, I can't remember specifically what monitor I had at the time it worked with! extra note... It's been 11 years and my home-making projects are over. .... but ignore all that and try acquiring a new Amiga scart lead. At least now you've tested it on a few tv's with dead end results.

10 June 2006, 12:55	#20
patrik Registered User Join Date: Jan 2005 Location: Umeå Age: 43 Posts: 922	@DDNI: Aah, ok. @Quahappy: Yeah, you need to connect pin 8 of the scart via a 1kOhm resistor to pin 22 of the 23-pin dsub (+12V). Pin 16 of the scart also needs the correct voltage - it needs to be connected via a 150Ohm resistor to pin 22 of the 23-pin dsub. These tells the TV to use RGB input in the scart connector instead of the composite/s-video lines. Something which a rgb monitor most likely has per default. Btw, check out this schematics. @THERAVEN: Check if you have this connection in your scart. Also make sure there are no resistors on the red, green, blue and sync signals either on the dsub (pin 3, 4, 5, and 10) or scart side (pin 15, 11, 7, 20). It would probably be easiest to just get a new cable like Quahappy suggests thought.

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