VHF FM TRANSCEIVERTK-2140© 2001-10 PRINTED IN JAPANB51-8602-00 (S) 1022SERVICE MANUALGENERAL ................................................................................. 2SYSTEM SET-UP ..................................................................... 2OPERATING FEATURES ......................................................... 3REALIGNMENT ........................................................................ 4CIRCUIT DESCRIPTION .......................................................... 6SEMICONDUCTOR DATA ..................................................... 12DESCRIPTION OF COMPONENTS ....................................... 13PARTS LIST ............................................................................ 14EXPLODED VIEW .................................................................. 21PACKING ................................................................................ 22ADJUSTMENT ........................................................................ 23TERMINAL FUNCTION .......................................................... 32PC BOARD VIEWSTX-RX UNIT (X57-6400-10) ................................................ 33SCHEMATIC DIAGRAM ......................................................... 43BLOCK DIAGRAM .................................................................. 47LEVEL DIAGRAM ................................................................... 49KSC-25.................................................................................... 50KNB-24L,KNB-25A,KNB-26N,KRA-22 .................................... 53SPECIFICATIONS ............................................... BACK COVERCONTENTSKnob (ENC)(K29-9134-03)Knob (VOL)(K29-9133-03)Cabinet assy(A02-3653-04)Knob (PTT)(K29-9131-03)Antenna(KRA-22:option)Key top(SW1,SW2)(K29-9132-03)Does not come with antenna.Antenna is available as an option.fineline6