I run all MTH engines on my layout (DCS). During today's session my ProtoSound 3 Penn F7 ABA units just quit all sound functions during the run. I am in Tupelo, MS and have no dealers within 200 miles and am not electronic savvy. This is a new problem as I have had no sound problems with PS 2 engines of which I have a dozen. Any suggestions would be appreciated. Thanks.
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