System Powers itself Down
Product: Video Toaster
Platforms: 2000
Problem: Amiga 2000 with Toaster installed, computer powers down by itself.
The A2000 power supply will shut itself down if it senses either a short or an open in its +5 VDC power circuit. The short
or open can be anywhere in the computer's motherboard or in any attached cards. When this occurs in a system equipped with a
Toaster, the Toaster may be the culprit. This happens often enough that we have a colorful nickname for the condition,
"crowbarring the power supply", i.e. it is like the Toaster is knocking out the power supply with a crowbar.
This is not a certainty, though, and the easiest way to test is to substitute another Toaster in the system. If system powers
down with any Toaster card you put in, then somewhere in the video circuitry there is an open or a short in the +5v line on
the motherboard. Check the slot itself, first. If the system works fine with another Toaster, then it is time to call NewTek
for repair.
An alternative, if you do not have another Toaster but do have access to another system, is to test the same card in
another system. If the second system also shows the "crowbar" effect, then the Toaster is at fault. If it does not, then the
original host system has a problem.
We don't require that you test the Toaster in another system, or test the system with another Toaster to get the RMA,
but if you do, you could save yourself a little time by being certain where the failure lies.
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