Alex, Thanks for your help. Here is an example. FYI, this was recorde with a 2KHz high-pass filter.

I'll post an example shortly. Thanks.

I have now tried the paperclip procedure 15 times with no success! No lights; AM still "not found". What's next? When do we suspect a hardware problem? Thank you.

@Alex Rogers , Thank you. When I try the paper clip process should the switch be in USB or Custom?