[Tig] Flickering noise on an Ursa

[woz]

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I would concur with John Hinchcliffe on this one -I'm assuming lots of
things but the pec power supply sounds most likely. Unfortunately the movie
wont work so I'm completely guessing (and I presume its not stray light and
the scans, burn correction etc are clean?)
Any other symptoms? Look at/measure supply rails generally, both as you
power up and then after the fault appears.

woz (itv/3sixtymedia)

----- Original Message ----- 
From: "Steven Bradford" <sbradford at collinscollege.edu>
To: "TIG" <tig at tig.colorist.org>
Sent: Thursday, July 06, 2006 5:35 PM
Subject: [Tig] Flickering noise on an Ursa


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Thanks to oktobor for supporting the TIG
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Hi All!

We've been getting some flickering horizontal bands on the output of our
URSA Gold.
I've linked to a quicktime movie that shows what I'm talking about.
This was a component video recording of a parked 16mm frame.
It doesn't appear on the test signal, but does appear on RGB picture
out,
And is on each channel.

When I first power up it doesn't seem to be there, but as the machine
warms up, it quickly comes back.
The room temperature is about 68 to 70 farenheit.

http://www.mediafarm.tv/CollinsUrsa_3_Seconds.mov
It's about 1.8 megabytes, only a few seconds.
Any feedback would be greatly appreciated!

Steven Bradford
Media Arts Chair
Collins College
Tempe Arizona

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