NTSC CD32 converter to PAL, now shows B/W picture

Gaula92 · 18 October 2013, 18:23

Hi there

I was about to give away a NOS CD32 I have to a friend for his birthday (he loved SuperFrog on the PC and I want him to play the true thing).
The problem is that this CD32 is NTSC, so I went and desoldered R203 to make it boot in PAL mode.
And it does, but I get B/W picture now (it was color in NTSC mode!). I'm in PAL territory so all my TVs are PAL-compatible, hence I think it's using NTSC color encoding, thus confusing my TV.
HOW can I change color encoding? I heard about R205 but I can't see it onboard!

PD: Yes, I know about early boot menu, but I don't have a mouse to give away with the CD32.

pandy71 · 18 October 2013, 18:50

NTSC version have different SysCLK, also encoder is different (i.e. NTSC 3.58MHz) - i doubt that this game will work on CVBS (composite) output - go for RGB output - it is easy to add RGB (even small VGA connector) than rebuild whole CD32 to PAL.

NTSC/PAL switch will change only vertical refresh rate (and IMHO it should be called 60/50Hz switch) but remains parts - horizontal frequency and SysCLK remains not changed.

Amiga1992 · 18 October 2013, 20:54

If you are connecting it through S-Video, you can't get a color picture on NTSC mode through S-Video. Composite maybe (but I'd believe Pandy), RGB definitely works.

Hewitson · 25 October 2013, 15:19

You could possibly cut the oscillator input from the video encoder, set it to PAL instead of NTSC and supply your own PAL colour clock. This is what I do on the Megadrive, as converting it to 60hz results in a B&W picture.

18 October 2013, 18:23	#1
Gaula92 Registered User Join Date: Aug 2008 Location: Spain Posts: 527	NTSC CD32 converter to PAL, now shows B/W picture Hi there I was about to give away a NOS CD32 I have to a friend for his birthday (he loved SuperFrog on the PC and I want him to play the true thing). The problem is that this CD32 is NTSC, so I went and desoldered R203 to make it boot in PAL mode. And it does, but I get B/W picture now (it was color in NTSC mode!). I'm in PAL territory so all my TVs are PAL-compatible, hence I think it's using NTSC color encoding, thus confusing my TV. HOW can I change color encoding? I heard about R205 but I can't see it onboard! PD: Yes, I know about early boot menu, but I don't have a mouse to give away with the CD32.

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18 October 2013, 18:50	#2
pandy71 Registered User Join Date: Jun 2010 Location: PL? Posts: 2,810	NTSC version have different SysCLK, also encoder is different (i.e. NTSC 3.58MHz) - i doubt that this game will work on CVBS (composite) output - go for RGB output - it is easy to add RGB (even small VGA connector) than rebuild whole CD32 to PAL. NTSC/PAL switch will change only vertical refresh rate (and IMHO it should be called 60/50Hz switch) but remains parts - horizontal frequency and SysCLK remains not changed.

18 October 2013, 20:54	#3
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,646	If you are connecting it through S-Video, you can't get a color picture on NTSC mode through S-Video. Composite maybe (but I'd believe Pandy), RGB definitely works.

25 October 2013, 15:19	#4
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,773	You could possibly cut the oscillator input from the video encoder, set it to PAL instead of NTSC and supply your own PAL colour clock. This is what I do on the Megadrive, as converting it to 60hz results in a B&W picture.

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