"Jumping" picture on a real CD32

mk1 · 01 October 2007, 12:17

Hey,

I bought a CD32 off eBay some time ago which has been running fine except for one slight problem. All the video outs on that unit produce a "jumping" or bouncing picture to my tv when a certain screenmode or colours dominate the screen. I do know it's nothing to do with flicker as it can be easily avoided by changing the screen palette. It seems that the colours most like to produce the problem are those in the middle of the palette, so mostly black or white screens have no problems.

I installed an SX32 unit to the console and connected the CD32 to an Amiga monitor through the RGB port. This doesn't reproduce the problem.

Any ideas what might be wrong? I haven't ruled out the fact that it might be my tv, but it works fine with my A1200 & CDTV connected into it.

jimbo100 · 03 October 2007, 07:10

You have a NTSC CD32 on a PAL TV or the other way round?

mk1 · 03 October 2007, 09:59

Nope, both are European.

mk1 · 09 October 2007, 12:17

So... hasn't anyone got ANY idea what could be causing this? A damanged chip? And how come only certain colours are causing it?

01 October 2007, 12:17	#1
mk1 Registered User Join Date: Jul 2006 Location: Helsinki / Finland Posts: 403	"Jumping" picture on a real CD32 Hey, I bought a CD32 off eBay some time ago which has been running fine except for one slight problem. All the video outs on that unit produce a "jumping" or bouncing picture to my tv when a certain screenmode or colours dominate the screen. I do know it's nothing to do with flicker as it can be easily avoided by changing the screen palette. It seems that the colours most like to produce the problem are those in the middle of the palette, so mostly black or white screens have no problems. I installed an SX32 unit to the console and connected the CD32 to an Amiga monitor through the RGB port. This doesn't reproduce the problem. Any ideas what might be wrong? I haven't ruled out the fact that it might be my tv, but it works fine with my A1200 & CDTV connected into it.

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03 October 2007, 07:10	#2
jimbo100 Registered User Join Date: Jul 2006 Location: Western Australia Age: 55 Posts: 225	You have a NTSC CD32 on a PAL TV or the other way round?

03 October 2007, 09:59	#3
mk1 Registered User Join Date: Jul 2006 Location: Helsinki / Finland Posts: 403	Nope, both are European.

09 October 2007, 12:17	#4
mk1 Registered User Join Date: Jul 2006 Location: Helsinki / Finland Posts: 403	So... hasn't anyone got ANY idea what could be causing this? A damanged chip? And how come only certain colours are causing it?

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