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NEC PC-Engine/SuperGrafx => PC Engine/SuperGrafx Discussion => Topic started by: CatBoy on December 01, 2016, 02:41:18 AM

Title: Why the extra AV out on the SuperCD ROM?
Post by: CatBoy on December 01, 2016, 02:41:18 AM
I currently have a Super CD-ROM2 attached to a CoreGrafx II. My AV cable has always been attached to the Super CD-ROM2 av out.
I was looking at a way to optimize the video quality and a local guy offered me a PC Engine modded with RGB output. I was under the impression that plugging the PC Engine into the Super CD-ROM2 would never allow me to play CD games with RGB, only HuCards...
This morning I plugged the AV cable into my CoreGrafx II to test my theory and the CD game played just fine...
Why is there an AV outlet on the Super CD-ROM if the one on the CoreGrafx is sufficient? Am I missing something obvious?  :-k
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Lost Monkey on December 01, 2016, 03:02:22 AM
PC Engine has no A/V out.  Well, no RCA jacks anyway.
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: mickcris on December 01, 2016, 03:22:11 AM
i always thought you have to get audio out of the cd rom side.  you may be missing some of the sound by hooking it up how you did.  try playing a music cd and see if it comes out of the console to test.
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Lost Monkey on December 01, 2016, 03:45:09 AM
i always thought you have to get audio out of the cd rom side.  you may be missing some of the sound by hooking it up how you did.  try playing a music cd and see if it comes out of the console to test.

I have a TG with A/V out on the side - I will try this. I thought I already did, but don't remember now.
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Necromancer on December 01, 2016, 03:55:34 AM
The audio passed back to the system is mono.  Use the one on the IFU for stereo.
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Bloufo on December 01, 2016, 08:04:03 AM
When the sound no longer works out of your Super CD-ROM² unit, you'll be glad you have that other option.  :P
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Bonknuts on December 01, 2016, 08:58:58 AM
PC Engine has no A/V out.  Well, no RCA jacks anyway.
The PC-Engine CoreGrafx has A/V out via A/V cable port on the side. The original PCE and TG16 do not (instead need adapters/boosters/or DIY cables).

Quote
Why is there an AV outlet on the Super CD-ROM if the one on the CoreGrafx is sufficient? Am I missing something obvious?
The on on the CG only has mono CD sound mixed with stereo chiptunes. The SCD output is the one you normally want because it's the A/V of the original system, plus stereo mix of CD audio (and ADPCM).

 As someone else pointed out, if the audio amp circuit goes out on the SCD unit - you can always run it with mono CD sound mix via the other route until you can get it fixed.
Title: Re: Why the extra AV out on the SuperCD ROM?
Post by: Joe Redifer on December 01, 2016, 10:30:06 AM
I remember listening to CD tunes on my TurboGrafx-CD from the Turbo's RF output. It's all in mono of course since no RF jack on any console ever has been in stereo (though technically they could).