Subject: Re: PAL Colour Card
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From: Patrick Schaefer <patrick.schaefer@topmail.de>
Newsgroups: comp.sys.apple2
Date: Mon, 21 Aug 2000 10:59:15 +0200
Organization: Forschungszentrum Juelich GmbH
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Dave Morrison schrieb:
> 
> Just picked up a PAL Colour Card for my ][e so I can hook it up to my
> TV (Im in Australia). Is there a manual for it online?? From what I
> gather it goes into slot 7 but it just changes the black screen of my
> TV to a dark green. There are 2 rca jacks on the card.. one listed
> "UHF" the other "Video O P".

Video is baseband video (connect this to a SCART or S-VHS connector),
UHF means an antenna-compatible RF signal (in most cases Channel 36,
like a vcr).


> Can it be used in any other slot than 7?? Anything else interesting I
> should know about it??

A few signals have to be run from the motherboard's video circuitry to
the card:

pin 19: Sync
pin 23: /Text
pin 24: 14M
pin 28: Video
pin 35: Color Ref

pin 26 and 50 supply +12V and Gnd, the other pins are unused. That means
except for the power lines you have to connect everything to the card
manually. Slot 7 is mostly used because it has no DMA out, INT out
lines, therefore pin 23 and 24 are free. 

The slot itself is only a mechanical support, you could also solder
seven wires to the card and glue it onto the power supply case.


Patrick