Main > Monitor/Video Forum
How to use SCART for our hobby
Zebidee:
--- Quote from: sinkhead on July 01, 2009, 06:27:52 pm ---Hi,
Sorry if I'm being dim, but why is pin 18 (Composite video input ground) connected to the Molex return?
Pin 14 and the SCART casing are the return for the two currents coming from the Molex plug.
Many thanks.
--- End quote ---
You're looking at some other pinout, I think, and not the one that we are referring to,(or perhaps confusing the SCART output pins for the input pins).
Composite video ground = SCART pin 17
RGB blanking ground = SCART pin 18
Look here for more info: http://pinouts.ru/Home/Scart_pinout.shtml
sinkhead:
Ah, thanks. Things make much more sense now. I was referring to the pinout on Wikipedia, by the way.
technocop:
Hi Guys,
I knocked together this lead, and I think it's sort of working.
The colours all look fine, but the screen is constantly "rolling".
When I had my arcade monitor working, and I had a rolling screen, I would adjust the vertical and horizontal pots to get a steady image. This *looks* like the same issue?
Is there anything I can do about this, can I make similar adjustemts in the tv's service mode?
It's an old Toshiba (1721TB), I have no idea how to get into service mode. Google wasn't much help. Anyone know where I might find out??
Zebidee:
What is your video input source?
Assuming your software is outputting the sync correctly, it sounds like your cable's vertical sync isn't connected properly.
Connect VGA 13 + 14 (hsync + vsync, twist together) to SCART 20
Make sure that all grounds are grounded, esp. VGA 10 (sync gnd).
technocop:
duhhh...
I hadn't wired up pin 14 (didn't read all the posts here carefully), all working now, thanks :cheers:
The interlaced modes don't look as good as my old arcade monitor, but what you said in my other thread was spot-on, it looks very nice indeed with my arcadeVGA. Pleased with the results, much easier and cheaper than getting hold of a new arcade monitor.
Only problem is that some modes get lines cut off. And I'm also missing a very thin strip down the left of the screen I presume I can adjust the geomety in the service menu, but I have no idea how to get to it!
Would anyone here know where I could find this information?
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