2TK-5400 CONTENTS / 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 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.• This equipment should be serviced by a qualified techni-cian only.SERVICEThis radio is designed for easy servicing. Refer to theschematic diagrams, printed circuit board views, and align-ment procedures contained within.NOTEWE CANNOT guarantee oscillator stability when usingchannel element manufactured by other than KENWOOD orits authorized agents.Unit X57-6530-10 X53-4030-XX Frequency range Remarks KeypadModel & Destination 0-10 0-11TK-5400 K 806~825MHz (TX) 1st IF : 44.85MHz –K2 851~870MHz (TX,RX) LOC : 44.395MHz GENERAL ................................................................. 2SYSTEM SET-UP ..................................................... 3OPERATING FEATURES ......................................... 3REALIGNMENT ........................................................ 5DISASSEMBLY FOR REPAIR .................................. 7CIRCUIT DESCRIPTION ........................................... 8SEMICONDUCTOR DATA ..................................... 13COMPONENTS DESCRIPTION ............................. 16PARTS LIST ............................................................ 17EXPLODED VIEW .................................................. 24PACKING ................................................................ 25ADJUSTMENT ....................................................... 26TERMINAL FUNCTION ......................................... 41PC BOARDCONTROL UNIT (X53-4030-XX) ....................... 43TX-RX UNIT (X57-6530-10) .............................. 47SCHEMATIC DIAGRAM ........................................ 53BLOCK DIAGRAM .................................................. 59LEVEL DIAGRAM ................................................... 61KMC-25 (Speaker Microphone) ........................... 62KNB-17A (Ni-Cd Battery) ...................................... 63KNB-21N/22N (Ni-MH Battery) ............................ 63KPG-36 (Programming Interface Cable ) ............ 64KSC-19 (Regular Charger) .................................... 64KSC-20/24 (Rapid Charger) .................................. 64SPECIFICATIONS ................................................... 65