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Author Topic: SCART RGB Lead problem  (Read 26323 times)

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Offline utri007

Re: SCART RGB Lead problem
« Reply #29 from previous page: April 10, 2011, 02:37:20 PM »
Exactly same

I could try to fix this myself, but I'm not experienced to soldering.

So I would appreciate if I could get good instructions what to try.
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Offline tribzTopic starter

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Re: SCART RGB Lead problem
« Reply #30 on: April 10, 2011, 02:52:45 PM »
Quote from: tribz;630709
Interesting, I wonder if disconnecting composite wire will remove the little remaining ghosting. I'll try it now!

The remaining ghosting was caused by having the L/R rca being wired at the DB23 end. Must have been some interference. I've connected them in at the SCART end and no ghosting at all now, great picture.

http://www.datacenta.it/Photo7.jpg (phone cam not doing it justice)

Thanks for all the help. This is a milestone day for my miggy. Everything done, time to play.
« Last Edit: April 10, 2011, 02:57:53 PM by tribz »
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Offline tribzTopic starter

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Re: SCART RGB Lead problem
« Reply #31 on: April 10, 2011, 02:59:33 PM »
Quote from: utri007;630718
Exactly same

I could try to fix this myself, but I'm not experienced to soldering.

So I would appreciate if I could get good instructions what to try.


The thing I've learned this weekend is there are about a gazzilion ways to wire up a scart lead. This is the one that worked for me ...

http://wiki.classicamiga.com/Amiga_RGB_to_Scart_lead
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Offline utri007

Re: SCART RGB Lead problem
« Reply #32 on: April 10, 2011, 03:30:05 PM »
What did you changed, I would like to do excatly as you did? Did I understand correctly, only 6 wires needed to picture? 3 for audio?
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A1200 Micronic tower, OS3.9, Apollo 060 66mhz, xPert Merlin, Delfina Lite and Micronic Scandy, 500Gb hd, 66mb ram, DVD-burner and WLAN.
A1200 desktop, OS3.9, Blizzard 060 66mhz, 66mb ram, Ide Fix Express with 160Gb HD and WLAN
A500 OS2.1, GVP+HD8 with 4mb ram, 1mb chip ram and 4gb HD
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Offline tribzTopic starter

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Re: SCART RGB Lead problem
« Reply #33 on: April 10, 2011, 03:37:35 PM »
Quote from: utri007;630725
What did you changed, I would like to do excatly as you did? Did I understand correctly, only 6 wires needed to picture? 3 for audio?


Correct, just like the schematic on that wiki link. I didnt use any resisters on mine.
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Offline Franko

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Re: SCART RGB Lead problem
« Reply #34 on: April 10, 2011, 03:37:40 PM »
Quote from: tribz;630720
The remaining ghosting was caused by having the L/R rca being wired at the DB23 end. Must have been some interference. I've connected them in at the SCART end and no ghosting at all now, great picture.

http://www.datacenta.it/Photo7.jpg (phone cam not doing it justice)

Thanks for all the help. This is a milestone day for my miggy. Everything done, time to play.


Glad you finally got it sorted... :)

So which way worked best for you resistors or no resistors ??? :)

(sorry the sites so slow just now, I've only just spotted your reply... always found myself putting in these resistors cause a lot of problems with LCD/flatscreen TV's... ;))
« Last Edit: April 10, 2011, 03:40:43 PM by Franko »
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Offline utri007

Re: SCART RGB Lead problem
« Reply #35 on: April 10, 2011, 04:24:02 PM »
Just to be sure, NO resistor for 12v wire? Fron pin 22 to pin 16??
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A1200 Micronic tower, OS3.9, Apollo 060 66mhz, xPert Merlin, Delfina Lite and Micronic Scandy, 500Gb hd, 66mb ram, DVD-burner and WLAN.
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Offline Franko

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Re: SCART RGB Lead problem
« Reply #36 on: April 10, 2011, 04:30:38 PM »
Quote from: utri007;630740
Just to be sure, NO resistor for 12v wire? Fron pin 22 to pin 16??


It looks like that's what tribz has done, as I say I've found having these resistors on the cable to cause a lot of these problems with flatscreen TVs... :)
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Offline utri007

Re: SCART RGB Lead problem
« Reply #37 on: April 10, 2011, 04:47:07 PM »
It could also be usefull to know what was wrong with tribz scart cable? How much soldering or maybe just cutting wires?
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Offline Franko

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Re: SCART RGB Lead problem
« Reply #38 on: April 10, 2011, 05:00:17 PM »
From what he's described after following the advice given here, he's simply removed any of the resistors that were in the cable and instead of using the composite sync signal coming from the Amigas 23 PIN Video output, he's spliced in a Phono/RCA cable to use the Amigas Composite Video output for the sync signal instead... :)

(The composite sync signal given out by the Amiga's 23 PIN D-SUB Video output can be very flakey when used with a lot of modern flatscreen TVs and sometimes you have to use the Amigas Phono/RCA Composite Video output instead to get a clean sync signal...:))
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Offline utri007

Re: SCART RGB Lead problem
« Reply #39 on: April 10, 2011, 05:13:11 PM »
OK

Again just to be sure:

1. Remove resistor from from line 22 -> 16
2. Composite sync is pin 10 in d-sub, move it to pin 20 on scart connector?

That's it??

Argh :( I didn't get it
« Last Edit: April 10, 2011, 05:20:04 PM by utri007 »
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ACube Sam 440ep Flex 800mhz, 1gb ram and 240gb hd and OS4.1FE
A1200 Micronic tower, OS3.9, Apollo 060 66mhz, xPert Merlin, Delfina Lite and Micronic Scandy, 500Gb hd, 66mb ram, DVD-burner and WLAN.
A1200 desktop, OS3.9, Blizzard 060 66mhz, 66mb ram, Ide Fix Express with 160Gb HD and WLAN
A500 OS2.1, GVP+HD8 with 4mb ram, 1mb chip ram and 4gb HD
Commodore CDTV KS3.1, 1mb chip, 4mb fast ram and IDE HD
 

Offline tribzTopic starter

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Re: SCART RGB Lead problem
« Reply #40 on: April 10, 2011, 05:57:07 PM »
Quote from: Franko;630750
From what he's described after following the advice given here, he's simply removed any of the resistors that were in the cable and instead of using the composite sync signal coming from the Amigas 23 PIN Video output, he's spliced in a Phono/RCA cable to use the Amigas Composite Video output for the sync signal instead... :)

Hiya Franko,

The composite phono plug didnt work for me, well it did but it only gave me a composite picture.

I started again using this image with out any resisters. I had a few wires left unused which I presume where all the RGB grounds.

http://wiki.classicamiga.com/Image:Amiga-rgb-to-scart_sc1.jpg

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Offline tribzTopic starter

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Re: SCART RGB Lead problem
« Reply #41 on: April 10, 2011, 05:59:54 PM »
Quote from: utri007;630754
OK

Again just to be sure:

1. Remove resistor from from line 22 -> 16
2. Composite sync is pin 10 in d-sub, move it to pin 20 on scart connector?

That's it??

Argh :( I didn't get it


Dont worry, you'll get there. I found it a bit confusing as well.

One thing to note is that my lead only works in AV1/RGB and not AV2. You are in AV1 on your LCD arent you?
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Offline utri007

Re: SCART RGB Lead problem
« Reply #42 on: April 10, 2011, 06:09:10 PM »
OK

What I have here connected

http://wiki.classicamiga.com/Amiga_RGB_to_Scart_lead

Scart

5, 7, 9, 11, 13, 15, 17, 18 and 20. 17 and 18 are connected with jumpwire

So need to figure out 5, 9, 13 what those are for / where they go (ground signals???) and cut jumpwire form 17 to 18. Get 12v to pin 16

D-sub is has all needed wires exept 22
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ACube Sam 440ep Flex 800mhz, 1gb ram and 240gb hd and OS4.1FE
A1200 Micronic tower, OS3.9, Apollo 060 66mhz, xPert Merlin, Delfina Lite and Micronic Scandy, 500Gb hd, 66mb ram, DVD-burner and WLAN.
A1200 desktop, OS3.9, Blizzard 060 66mhz, 66mb ram, Ide Fix Express with 160Gb HD and WLAN
A500 OS2.1, GVP+HD8 with 4mb ram, 1mb chip ram and 4gb HD
Commodore CDTV KS3.1, 1mb chip, 4mb fast ram and IDE HD
 

Offline utri007

Re: SCART RGB Lead problem
« Reply #43 on: April 10, 2011, 06:29:54 PM »
Vesalia has this SCART cable (Amiga RGB -> SCART), stereo, 2m. will it work with LCD TV? Does any one know how this is wired?
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A1200 Micronic tower, OS3.9, Apollo 060 66mhz, xPert Merlin, Delfina Lite and Micronic Scandy, 500Gb hd, 66mb ram, DVD-burner and WLAN.
A1200 desktop, OS3.9, Blizzard 060 66mhz, 66mb ram, Ide Fix Express with 160Gb HD and WLAN
A500 OS2.1, GVP+HD8 with 4mb ram, 1mb chip ram and 4gb HD
Commodore CDTV KS3.1, 1mb chip, 4mb fast ram and IDE HD
 

Offline Framiga

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Re: SCART RGB Lead problem
« Reply #44 on: April 10, 2011, 06:49:19 PM »
Quote from: utri007;630766
OK

What I have here connected

http://wiki.classicamiga.com/Amiga_RGB_to_Scart_lead

Scart

5, 7, 9, 11, 13, 15, 17, 18 and 20. 17 and 18 are connected with jumpwire

So need to figure out 5, 9, 13 what those are for / where they go (ground signals???) and cut jumpwire form 17 to 18. Get 12v to pin 16

D-sub is has all needed wires exept 22


pins 5-9-13 SCART side are the RGB ground signals thats must go to

pins 16-17-18 Amiga RGB connector side (actually it would be better to have single shielded mini-coaxial cables for R-G-B and CSync)

Keep as reference (resistors apart which your telly doesn't need) Jan's page

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