Kenwood TK-860G Service Manual

Also see for TK-860G series: Instruction manual Instruction manual Service manual supplement Service manual Service manual

Contents

2TK-860G/862GCONTENTS / GENERALGENERALINTRODUCTIONSCOPE OF THIS MANUALThis manual is intended for use by experienced techni-cians familiar with similar types of commercial grade com-munications equipment. It contains all required service in-formation for the equipment and is current as of the publica-tion data. Changes which may occur after publication arecovered by either Service Bulletins or Manual Revisions.These are issued as required.ORDERING REPLACEMENT PARTSWhen ordering replacement parts or equipment informa-tion, the full part identification number should be included.This applies to all parts : components, kits, or chassis. If thepart number is not known, include the chassis or kit numberof which it is a part, and a sufficient description of the re-quired component for proper identification.PERSONNEL SAFETYThe following precautions are recommended for person-nel safety :• DO NOT transmit if someone is within two feet (0.6meter) of the antenna.• DO NOT transmit until all RF connectors are verified se-cure and any open connectors are properly terminated.• SHUT OFF and DO NOT operate this equipment nearelectrical blasting caps or in an explosive atmosphere.• All equipment should be properly grounded beforepower-up for safe operation.• This equipment should be serviced by a qualified techni-cian only.PRE-INSTALLATION CONSIDERNATIONS1. UNPACKINGUnpack the radio from its shipping container and checkfor accessory items. If any item is missing, please contactKENWOOD immediately.2. LICENSING REQUIREMENTSFederal regulations require a station license for each ra-dio installation (mobile or base) be obtained by the equip-ment owner. The licensee is responsible for ensuring trans-mitter power, frequency, and deviation are within the limitspermitted by the station license.Transmitter adjustments may be performed only by a li-censed technician holding an FCC first, second or generalclass commercial radiotelephone operator’s license. Thereis no license required to install or operate the radio.CONTENTSGENERAL ................................................................. 2SYSTEM SET-UP ..................................................... 4OPERATING FEATURES ......................................... 5REALIGNMENT ...................................................... 10INSTALLATION ...................................................... 20CIRCUIT DESCRIPTION ......................................... 24SEMICONDUCTOR DATA ..................................... 29DESCRIPTION OF COMPONENTS ....................... 31PARTS LIST ............................................................ 33EXPLODED VIEW .................................................. 42PACKING ................................................................ 44ADJUSTMENT ....................................................... 45PC BOARD VIEWSDISPLAY UNIT (X54-3270-10) : TK-860G ........ 54DISPLAY UNIT (X54-3280-10) : TK-862G ........ 55PLL/VCO (X58-4670-XX) .................................. 56TX-RX UNIT (X57-5960-XX) (A/2) ................... 57TX-RX UNIT (X57-5960-XX) (B/2) .................... 63SCHEMATIC DIAGRAM ........................................ 67BLOCK DIAGRAM.................................................. 75LEVEL DIAGRAM ................................................... 78TERMINAL FUNCTION ......................................... 80SPECIFICATIONS ................................................... 81