© 2001-5 PRINTED IN JAPANB51-8581-00 (N) 1370VHF FM TRANSCEIVERTK-780/HSERVICE MANUALGENERAL ................................................................. 2OPERATING FEATURES ......................................... 3REALIGNMENT ...................................................... 15INSTALLATION ...................................................... 20CIRCUIT DESCRIPTION ......................................... 28SEMICONDUCTOR DATA ..................................... 33DESCRIPTION OF COMPONENTS ....................... 35PARTS LIST ............................................................ 37EXPLODED VIEW .................................................. 47PACKING ................................................................ 48ADJUSTMENT ....................................................... 49PC BOARD VIEWSPLL/VCO (X58-4540-11) : K2,HK2 .................... 57PLL/VCO (X58-4712-70) : K,HK ........................ 58TX-RX UNIT (X57-6480-XX) (A/2) ................... 59TX-RX UNIT (X57-6480-XX) (B/2) .................... 65SCHEMATIC DIAGRAM ........................................ 69BLOCK DIAGRAM.................................................. 77LEVEL DIAGRAM................................................... 80TERMINAL FUNCTION ......................................... 82SPECIFICATIONS................................................... 83CONTENTSMicrophone(T91-0621-05)Cabinet (Top)(A01-2165-13)Panel assy(A62-0991-03)Key top(K29-5284-02)SUPPLEMENTThis service manual applied to products with 30200001 or subsequent serial numbers.In terms of the products with the serial numbers earier than 30200001, refer to the TK-780/Hservice manual as per part No. B51-8461-10.