============================================================================== K E N W O O D >>> A M A T E U R R A D I O S E R V I C E B U L L E T I N <<< ============================================================================== Kenwood Service Centers Kenwood Service Corporation Kenwood Service Center, East 2201 East Dominguez Street 829 Lynnhaven Parkway, Suite 130 Long Beach, California 90801 Virginia Beach, Virginia 23452 Telephone 1-310-639-5300 Telephone 1-804-340-1702 ============================================================================== BULLETIN # 1044 MODEL: TS-50S SUBJECT: Mechanical Noise from Final Unit Symptom: 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. Corrective Action: In order to ease consumer concerns you 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. Parts Required: Qty Description Old Part No. New Part No. Circuit Description 1 Cushion N/A G13-0871-04 Under L4 1 Transformer L39-1209-25 L39-1252-05 L13 ::::::: :O:::O: <--- Output Transformer L4 ::::::: _______XXXXXXX_______ Cushion G13-0871-04 Final PC Board (X45-3460-00) Time required for this modification is 30 minutes or less. Service code A:08 B:X45-348O-O0 C:L13 D:91