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View topic - Composite video is broken on my Master System. Any help welcome.

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  • Joined: 24 Sep 2013
  • Posts: 141
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Composite video is broken on my Master System. Any help welcome.
Post Posted: Tue Apr 18, 2017 1:01 am
I've connected the composite output to my TV and it is all over the place.
It is black and white and can't stop skipping all over the screen. I fear there might be a broken component somewhere, as of now I am stuck with RF video output.

The sound RCA is also not working either. I am getting the composite video and sound from the DIN connector on the back.

Attached video of the issues
sms-composite-issues.zip (1.15 MB)
composite issues

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  • Joined: 10 May 2016
  • Posts: 130
  • Location: Canada
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Post Posted: Tue Apr 18, 2017 1:06 am
Is it possible your cable is damaged? That would be the easiest fix. I had something like this happen on one of my consoles before and it was fixed once I bought a new cable.
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  • Joined: 24 Sep 2013
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Post Posted: Tue Apr 18, 2017 1:13 am
Will try it tomorrow when I get to the console, obvious solution sometimes is the one. :)
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  • Joined: 23 Apr 2014
  • Posts: 131
  • Location: NYC
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Post Posted: Tue Apr 18, 2017 12:56 pm
While it may not be the fix in this case, I've found a few SMS' that needed the pins on the A/V port re-flowed. Nothing special, I just used a soldering iron, heated each pin and added a tiny bit more solder to each.
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  • Joined: 14 Mar 2016
  • Posts: 58
  • Location: Australia
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Post Posted: Tue Apr 18, 2017 2:51 pm
Not sure if you have done so already. But might be worth checking another device/console with the composite input for the TV?

Was the master system working on the TV previously?

Is the TV and console the same format. PAL vs NTSC? I know some tuners in Samsung TVs can be dicky if the formats miss match.

If everything is all ok then I would check the AV port and the cable too. Wouldn't hurt to do a visual inspection on the capacitors near the AV port too.
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  • Joined: 13 Aug 2010
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Post Posted: Tue Apr 18, 2017 7:58 pm
Does anything happen on RGB SCART?
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