Print Page - Which RGB amp

Title: Which RGB amp
Post by: SuperPlay on 07/11/2010, 04:41 AM

Looking around on the web there seems to be 2 popular ways to add an RGB amp to a PC Engine.

The first is the one posted on Gamesx

pce_rgb.jpg

and the second on Mmonkey

http://www.mmmonkey.co.uk/console/pce/amp.htm (http://www.mmmonkey.co.uk/console/pce/amp.htm)

Does the Mmonkey one without the caps etc work as well as the Gamesx one? comments please.

Title: Re: Which RGB amp
Post by: Ravij on 07/18/2010, 12:50 PM

I've not built either, but IMO the GamesSX one looks like a proper amp circuit. I like the MMMonkey site, but that amp looks too crude, having no voltage clamping.

http://en.wikipedia.org/wiki/Clamp_%28circuit%29#Clamping_for_input_protection

It may well work fine, but I wouldn't want to blow my PC Engine Graphics chip just to save a few cents!

Title: Re: Which RGB amp
Post by: SuperPlay on 07/19/2010, 02:36 PM

Thank you very much for your reply and the additional information.

PCEngine-FX.com

NEC PC Engine/TurboGrafx-16 Games/Consoles => Console Repair/Mod Center => Topic started by: SuperPlay on 07/11/2010, 04:41 AM