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the 16 volts he measured was out of the transformer, which is always higher than the regulator output in CB style power supplies.

first thing to do is trace the power from the output of the power supply (AC or DC) to the on off switch, and from there to the board.

if you find the 14 or so volts all the way to the PC board, i would suspect the voltage regulator. (MB3756)
it might have shorted.
LC

[QUOTE="loosecannon, post: 198630, member: 1368"] the 16 volts he measured was out of the transformer, which is always higher than the regulator output in CB style power supplies. first thing to do is trace the power from the output of the power supply (AC or DC) to the on off switch, and from there to the board. if you find the 14 or so volts all the way to the PC board, i would suspect the voltage regulator. (MB3756) it might have shorted. LC [/QUOTE]

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