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Old 08 October 2007, 03:40   #1
Tej
 
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Problem with cdtv

Hi to everyone!
I've a problem with my cdtv..I had no picture on screen so I've discovered that the video card is cracked, and so the composite video out doesn't work.. my question is: will the rgb video out work? it seems that the rgb video out depends from the motherboard and not from the video card, at least I think..

Do you know if I can use the cdtv's hardware (chips, cpu, cd, psu, ecc..) with other amigas (like amiga 500, amiga 600, amiga 1200) ?.

thanks.
I'm sorry for my bad english
 
Old 08 October 2007, 07:07   #2
Chain
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video card works like "interconnection" between denise and rgb port, so if its broken there will be no picture from rgb port also.
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Old 08 October 2007, 07:53   #3
Toni Wilen
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Quote:
video card works like "interconnection" between denise and rgb port, so if its broken there will be no picture from rgb port also
I don't think so.. RGB output comes from Denise (in digital form) which is connected to DAC and then directly to RGB port.

CDTV's "video card" is basically internally connected A520 (TV-modulator). RGB output will work without it.

EDIT: apparently it really is needed (haven't confirmed yet) but this looks stupid decision.. (EDIT2: apparently it had to be done this way because slot needs to support genlock module) Anyway, simple wire rerouting should fix the problem easily

Quote:
Do you know if I can use the cdtv's hardware (chips, cpu, cd, psu, ecc..) with other amigas (like amiga 500, amiga 600, amiga 1200) ?.
Most chips are identical (note that A600/A1200 chips are surface mount). CD drive is NOT compatible.

Last edited by Toni Wilen; 08 October 2007 at 08:06.
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Old 08 October 2007, 09:22   #4
Chain
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you can easily check it, removing card completely disables rgb port
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