Kenwood TH-K20A Service Manual

Also see for TH-K20A: Manual Instruction manual

© 2009-1 PRINTED IN JAPANB51-8281-00 (N) 1219144MHz FM TRANSCEIVERTH-K20A/K20ESERVICE MANUALThis product uses Lead Free solder.This product complies with the RoHS directive for the European market.© 2011-11 PRINTED IN JAPANB51-8997-00 (Y) 203CONTENTSDISASSEMBLY FOR REPAIR .....................2CLONE MODE .............................................3CIRCUIT DESCRIPTION .............................4SEMICONDUCTOR DATA ...........................7COMPONENTS DESCRIPTION ..................9PARTS LIST ...............................................10EXPLODED VIEW ......................................16PACKING ...................................................17ADJUSTMENT ...........................................18PC BOARDTX-RX UNIT (X57-821X-XX) ...................22SCHEMATIC DIAGRAM ............................26BLOCK DIAGRAM .....................................30LEVEL DIAGRAM ......................................32OPTIONAL ACCESSORIESBT-16 (Battery Case) .............................33EMC-11 (Clip Microphone with Earphone) ..33PB-46L (Li-ion Battery Pack) ................33KVC-22 (DC Vehicular Chager Adapter) ..33SPECIFICATIONS ......................................35Helical antennaM: (T90-1018-35)K,E: (T90-1044-15)Plastic cabinet assy(A02-4158-03)Knob (Volume)(K29-9503-03)Knob(Encoder)(K29-9504-03)Key top (16 keys)(K29-9502-02)When performing the TH-K20 adjustment, a personalcomputer, programming interface and tuning software arerequired.