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-5V Power Problems
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Problems with large hard disk transfers, discolored Toaster output (pink or
magenta display of white areas), system crashes, or Emplant diagnostic
failures. (See Emplant Reference.) Solution: U198 7905 -5V regulator is
probably bad. Replace with new 7905 1-amp -5V regulator (see Sources).
To locate U198, look near the bottom expansion slot at the back of the
machine.
The easiest way to replace this component may be to clip off the leads
close to the body of the defective part, then trim the leads on the
replacement and solder it to the old pins.
New 7905 regulator
Solder (side view)
here |
Old leads on motherboard \ |
\ \
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Converted on 02 Jun 1997 with RexxDoesAmigaGuide2HTML 2.1 by Michael Ranner.