It's time to restore the 11/45 - progress!
elson at pico-systems.com
Thu Feb 5 20:10:37 CST 2015
On 02/05/2015 03:47 PM, Jacob Ritorto wrote:
> Hey everyone, making some progress here -- thanks for all the tips so far!
> Most of the power regulators are fine, but both H745 regulators seem to
> be toast. Only getting -1.2 volts; should be -15 and they squeal angrily
> when I turn the pot. The surplus shops seem to want $200 for one, so
> that's not an option for me.
If they belch smoke, then they are toast. Possibly the
overvoltage crowbar is tripping,
or there is a short somewhere else. Did you test these
outside the machine or with
the CPU hooked up? I think the -15 reg needs +15 to operate
correctly, as somebody
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