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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Linchpin on February 25, 2004, 02:11:44 PM

Title: DCE Scanmagic
Post by: Linchpin on February 25, 2004, 02:11:44 PM

Odd one really, got my scandoubler ( the type 1/2 internal 1/2 external ) on my a1200, get these odd yellow lines flickering on the screen , after it warms up, but only when there is activity on the IDE bus? Anyway... if ya ever get that i found that switching to DBLNTSC mode gets rid of it all.. odd??

Anyone ever had this problem or know why it happens?

Im guessing its some kinda heat problem... odd.

Kev

Title: Re: DCE Scanmagic
Post by: Framiga on February 25, 2004, 04:53:59 PM

Hi LinchpiN

or a simple ground loop.

Is your A1200 towerized?

If yes, try to isolate the SD from the metal case (or rear metal bracket). Sometimes could help.

Ciao

Title: Re: DCE Scanmagic
Post by: Linchpin on February 25, 2004, 06:05:55 PM

Thought about that - nope its well insulated.

It used to belong to JC - was a free gift so i appricate it :-)

Its been soldered a bit so maybe there is a fault...

Working well on DBLNTSC tho :-)

Title: Re: DCE Scanmagic
Post by: Jose on February 25, 2004, 06:43:10 PM

@LinchpiN

The Scandoubler only works in 15kHz modes wich the DBLNTSC isn't (it's around 31). I think there were some scandoublers that worked on euro36 and 72 (around 23khz if I remember correctly) but I don't know if the scanmagic is one of them. On DBLNTSC it it's just a passthrough.

How is that model installed by the way? I was thinking about getting one myself cause it seems to be of the best around from opinions I've read... Was wondering if that would fit my A1200 desktop ok..

:pint:

Title: Re: DCE Scanmagic
Post by: Linchpin on February 25, 2004, 07:24:14 PM

Hey jose :-)

The mad thing is... when i bypass the SD (with my connetion cable) it dosent work, my monitor says "out of range - 28.5kHz.

Yeah AFAIK this SD is designed to fit in a desktop case. Want some photos?

Title: Re: DCE Scanmagic
Post by: x56h34 on February 25, 2004, 07:42:05 PM

It could be that your monitor doesn't like ~30kHz modes which SD/FF uses. Try a different monitor which tolerates low sync better.

Title: Re: DCE Scanmagic
Post by: Linchpin on February 25, 2004, 07:44:49 PM

Correct - it dosent like anything slightly below 30khz

Works niceley with the DBLNTSC mode, so im happy.

Title: Re: DCE Scanmagic
Post by: Jose on February 25, 2004, 07:52:51 PM

"Yeah AFAIK this SD is designed to fit in a desktop case. Want some photos?"

No, I was just puzzled how the Scandoubler had two parts one external and one internal, is there some calbe making the connection between the too, or it's made throught the A1200 video port itself?! In that case it wouldn't be necessary to leave the case open in an A1200 desktop, so that's cool (I already have the rear expansion slot used so no luck there).

Title: Re: DCE Scanmagic
Post by: Linchpin on February 25, 2004, 08:00:14 PM

aha i see what you mean...

yeah there is a little 5 wire ribbon (sorta like an IDE) that goes from the internal bit to the external part on the amiga video port.