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Re: Apple IIc with colour LCD demoed at KansasFest?

Subject: Re: Apple IIc with colour LCD demoed at KansasFest?
From: David Wilson <david@uow.edu.au>
Date: 20 Feb 2005 17:00:19 +1100
Newsgroups: comp.sys.apple2
Organization: University of Wollongong
References: <cu8kh1$c9u$1@rumours.uwaterloo.ca> <vzuOd.31120$tU6.9745@edtnps91> <Wr6dncNn4c1M4pffRVn-vw@comcast.com> <gpSdnUi9jfPEHJffRVn-iA@comcast.com> <j%wOd.31487$tU6.6063@edtnps91> <c4ednQ9S__CFKZffRVn-pA@comcast.com> <g7CdnT6_P7wH1IjfRVn-2w@comcast.com> <V%bRd.332$Fu.89@edtnps89> <VymRd.13887$D34.11650@newssvr12.news.prodigy.com> <WoidnYi0aa_ljIvfRVn-iw@comcast.com> <fDpRd.77616$L_3.63403@clgrps13> <1gs6kao.19h7qtuhwvrxsN%email@DELETE_THIS.luddite.no-ip.com> <ct2dnQ7I4uP7J4vfRVn-tA@comcast.com> <NTzRd.193$0h.141@clgrps13> <UPKdnT-yk9jAUIvfRVn-tw@comcast.com> <6rBRd.205$0h.40@clgrps13> <39-dnbd6OOOEi4rfRVn-tA@comcast.com>
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"Michael J. Mahon" <mjmahon@aol.com> writes:
>I don't know (offhand) how much an external device is permitted
>to draw from the video expansion connector, or what voltages are
>provided.  Since it sags with floppy access, I'm guessing that
>it's the +12v line (used by the floppy motor).  The permissible
>current drain would have to be at least as large as what the
>LCD requires or it's a bad idea to use it.

Good guess. According to the Apple IIc Technical Reference Manual
pin 8 is 12 volts (regulated) and can supply up to 300mA.
-- 
David Wilson  School of IT & CS, Uni of Wollongong, Australia

Follow-Ups:
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Bill Garber" <willy46pa@comcast.net>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Sean Fahey" <a2fan@hotmail.com>

References:
- Apple IIc with colour LCD demoed at KansasFest?
  - From: "Tim Haynes" <timhaynes@alumni.no.spam.please.uwaterloo.ca>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Bill Garber" <willy46pa@comcast.net>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Bill Garber" <willy46pa@comcast.net>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Bill Garber" <willy46pa@comcast.net>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Sean Fahey" <a2fan@hotmail.com>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: email@DELETE_THIS.luddite.no-ip.com (Simon Williams)
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Bill Garber" <willy46pa@comcast.net>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Craig Bower" <to.email.me@post.a.request.message>
- Re: Apple IIc with colour LCD demoed at KansasFest?
  - From: "Michael J. Mahon" <mjmahon@aol.com>

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