I do not know why this person felt the outputs needed to be lifted. Makes
no sense to me. Unless he was setting the board down on a metal surface and
shorted the outputs to ground and thus was drawing the maximum current (1
amp) from the regulators. Still they have a shut down mode for shorts and
they do NOT burn out from load, they simply shut down. You can and will
have a problem if you go over the input voltage (something like 35VDC) for
them. If I was worried about the regulators I would disconnect the INPUTS
not the outputs. But have never had a problem on our bench with any XY
board overheating the outputs, and this is the Atari Orange test fixture
that is set to the same voltages as the game provides...
John :-#)#
At 10:21 PM 4/18/2001, you wrote:
>Specifically with Atari -- Star Wars and Major Havoc, is it safe to run the
>PCB with the monitor completely disconnected or can it cause problems?
>
>I'd like to work on the games using a scope for the output, and disconnect
>the monitor (at least the power) until I get the boards working correctly.
>
>The reason I ask:
>
>http://www.geocities.com/SiliconValley/Horizon/2253/vectors.html
>
>indicates that the regs output needs to be clipped.
>
>Thanks
>
>---
>Bret Pehrson
>http://www.vaps.org/members/nv/bret@classicade.com.html
>mailto:bret@classicade.com
>
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Received on Fri Apr 20 00:20:45 2001
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