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- Path: erinews.ericsson.se!usenet
- From: etxzayl@cate1.ericsson.se (Johan Zeylon IN/SA/BIB)
- Newsgroups: comp.sys.amiga.graphics
- Subject: Re: Picasso II and A1084S
- Date: 21 Feb 1996 11:53:47 GMT
- Organization: Ericsson Telecom AB
- Distribution: world
- Message-ID: <4gf14b$los@erinews.ericsson.se>
- References: <4gdp5j$un@crash.microserve.net>
- Reply-To: etxzayl@cate1.ericsson.se
- NNTP-Posting-Host: dill.ericsson.se
-
- In article un@crash.microserve.net, jshaffer@pennet.net (Jim Shaffer) writes:
- >The first problem is that it's virtually impossible to get
- >the vertical hold on the monitor adjusted properly. Unlike
- >when connected to my Amiga's 15-kHz output (I forgot to
- >mention, my Amiga is a 3000), the slightest touch produces
- >an extreme change. Even if I can get it to be still, it's
- >not always centered, and if I can get it centered, it will
- >eventually start drifting. It doesn't roll fast -- in fact,
- >I can get it down to quite slow -- but it's never still
- >for long.
- >
- The sync is missing.
-
- >This happens even if I have an Amiga screen mode being passed
- >through, and even if I connect the monitor directly to the
- >3000's VGA output using the Picasso-to-1084 cable.
- >
- It will never work, the VGA output of the A3000 doesn't have a
- composite sync. You will have to do a little circuit for this.
-
- >Someone on the Picasso mailing list said that I need to have
- >the Picasso's horizontal and vertical sync lines xor'd
- >together. I would hope that, having spent $35 for a cable,
- >it would do this, but I'm not confident. There are no chips
- >in the monitor end of the cable, and the Picasso end is a
- >molded plug.
- >
- There is a jumper on the Picasso board for this.
- It's the one close to the relays.
- It has to be closed for the Picasso to provide composite sync.
- It's in the manual, read more about it there.
-
- /Johan
-
-