============================================================================== 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 # 33 MODEL: RM-76 SUBJECT: CORRECTING THE FREQUENCY DIFFERERCE WITH THE RM-76 AND TR-7600 The RM-76 will be about 500Hz higher in frequency than the TR-7600/TR-7625. This will not present any problem most of the time. Our specified tolerance is +750Hz. The operating frequency may be out of the receiver input of a repeater if the transceiver is turned slightly high, however. The frequency difference may be corrected by adding additional diodes in series with both the 02 and 52 lines in the RM-76. This is shown in the graphic. The foil paths from the connector to diodes Dl8 and Dl9 are cut and the new diodes soldered on the foil side of the board. The cathode end of the diodes is soldered to the connector side. We recommend using either 1S2076 or lSl555 dicdes.