MFJ MFJ-415B, Instruction Manual, Page: 7 / 9

MFJ-415B CW Adapter Instruction Manual
5
In Case of Difficulty
!
Radio does not shift to CW band or perform CW functions when adapter is activated.
Check headers to confirm sure all pins are inserted into the adapter board.
!
Stations do not respond to your calls or do not reply to you on your frequency. Check
Offset trimpot R103 for correct setup. To approximate the factory default, set R103
so the arrow points to the "R" in R103. Then, if needed, readjust.
!
Stations report hearing a continuous carrier between keyed characters. Check
transceiver's carrier null adjustment (R36). Null for minimum carrier in SSB mode.
Carrier should be at least -40 dBc, or 40-dB down from full CW output.
Technical Assistance
If you have any problem with this unit first check the appropriate section of this manual.
If the manual does not reference your problem or your problem is not solved by reading
the manual, you may call
MFJ Technical Service
at
601-323-0549
or the
MFJ Factory
at
601-323-5869 . You will be best helped if you have your unit, manual and all information
on your station handy so you can answer any questions the technicians may ask.
You can also send questions by mail to MFJ Enterprises, Inc., 300 Industrial Park Road,
Starkville, MS 39759; by Facsimile (FAX) to 601-323-6551; or by email to
techinfo@mfjenterprises.com. Send a complete description of your problem, an
explanation of exactly how you are using your unit, and a complete description of your
station.