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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: chriscomputers on November 19, 2010, 06:13:15 PM

Title: PC engine duo Din 5 AV out
Post by: chriscomputers on November 19, 2010, 06:13:15 PM

I was wondering if anyone new what the +5V out on the pc engine duo Av cable was for? http://www.gamesx.com/avpinouts/duoav.htm
I have tapped video and audio here before without any issues not using the 5V and wanted to know if adding the +5V would improve things in any way.

Title: Re: PC engine duo Din 5 AV out
Post by: Duo_R on November 20, 2010, 02:37:45 AM

For standard AV output, the 5+ doesn't do anything useful.

Title: Re: PC engine duo Din 5 AV out
Post by: chriscomputers on November 20, 2010, 09:31:20 AM

Huh, so then what is the 5V even for? Why put it on there in the first place?

Title: Re: PC engine duo Din 5 AV out
Post by: Duo_R on November 20, 2010, 09:39:44 AM

This has been somewhat discussed generally (not PC Engine specific) here:

http://nfggames.com/forum2/index.php?topic=734.0

Quote

+5v is available on the output to drive optional components (like RF switches) and is not needed for RGB, but GROUND is not an optional thing.

So perhaps there was a RF adapter for the Duo systems in Japan? I am pretty sure the U.S. didn't get those. Funny I never even considered a RF Adapter for Duo's, but if there was one it would have to go into the 5 din port (because the RF plug was removed in the Duo systems).