E version © 2000-4 PRINTED IN JAPANB51-8523-00 (N) 553VHF FM TRANSCEIVERTK-780SERVICE MANUALGENERAL ................................................................. 2OPERATING FEATURES ......................................... 3REALIGNMENT ...................................................... 16INSTALLATION ...................................................... 19CIRCUIT DESCRIPTION ......................................... 26SEMICONDUCTOR DATA ..................................... 31DESCRIPTION OF COMPONENTS ....................... 32PARTS LIST ............................................................ 34EXPLODED VIEW .................................................. 43PACKING ................................................................ 44ADJUSTMENT ....................................................... 45PC BOARD VIEWSPLL/VCO (X58-4712-70) ................................... 54TX-RX UNIT (X57-6142-70) (A/2)..................... 55TX-RX UNIT (X57-6142-70) (B/2) ..................... 61SCHEMATIC DIAGRAM ........................................ 65BLOCK DIAGRAM.................................................. 73LEVEL DIAGRAM................................................... 76TERMINAL FUNCTION ......................................... 78SPECIFICATIONS................................................... 79CONTENTSCabinet (Upper)(A01-2165-13)Panel assy(A62-0642-03)Key top(K29-5422-02)