[Kenwood] TH-47A 440 MHz Handheld

[Dr. Gerald N. Johnson, electrical engineer]

Just like several TH-27A. The audio output stage and 5 volt regulator
are on a small subboard. The 5 volt regulator has no output. Cliff says
he has a shelf full of TH-27A all broken the same way. The failure is a
surface mount electrolytic that has leaked electrolyte and eaten away a
trace or two. The module is not available from Kenwood.

If I can build a new shop soon, I may try to produce some modules
someday. It will be at least a year.

Resetting the CPU didn't help my TH-27A. The TH-27A and TH-47A use the
same manual, schematic and shop manual.

73, Jerry, K0CQ

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Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.