kenwood TS-50S Mechanical noise from final unit
Author: Kenwood Communication, inc.
When the transceiver is subjected to vibration a mechanical noise can be heard from the output transformer area. This has led to concern by several consumers that something is loose or improperly installed.
In order to ease consumer concern toy should add a cushion under transformer L4 as shown in the accompanying diagram, and replace transformer L13 at the same time. This transformer has been fastened to the circuit board with high temperature adhesive, so use caution when removing it from the circuit board.
Qty Description Old part No. New Part No Circuit Description
1 Cushion NA G13-0871-04 (Under L4)
1 Output transformer L39-1209-25 L39-1252-05 L13
Time required for this modification is 30 minutes or less.