[Kenwood] TS-940S Question

[Dennis Doran]

Ladies and Gentlemen,

A question regarding the TS-940S. On the I.F. board there are three
adjustments accessable through the bottom case for Sidetone, Beep
Volume, and "Buzzer". I've searched both the operators manual and
service manual but found no clue.

What is the "buzzer" and what does it do?

In exchange for that info, I offer the following - please excuse if
this has been posted before as I did not scan the archives.

If the TS-940S looses receive in USB/LSB and FSK modes, but is fine in
CW and AM modes, check the following. There are two electrolytic caps
on the bottom of the I.F. board that are "glued" to the board for
stability. This glue can eat through the circuit board tracks over
time. One of those tracks supplies "switched DC" for the buffer amp
Q14 via diode D67. The eaten track will result in "open" ohm meter
reading between cathodes of D64/D67. Restoring continuity of this
circuit board track will restore SSB/FSK receive operation.

Thanks to all,
dennis