© 2007-12 PRINTED IN JAPANB51-8803-00 (S) 343UHF DIGITAL TRANSCEIVERNX-800SERVICE MANUALThis product uses Lead Free solder.Panel assy(A62-1162-03)Key top(K29-9401-03)Metallic cabinet(A01-2194-11)Microphone(T91-0639-35)GENERAL .................................................................. 2SYSTEM SET-UP ...................................................... 4REALIGNMENT ......................................................... 5INSTALLATION ......................................................... 8DISASSEMBLY FOR REPAIR ................................. 15CIRCUIT DESCRIPTION .......................................... 18COMPONENTS DESCRIPTION .............................. 24PARTS LIST ............................................................. 27EXPLODED VIEW .................................................... 40PACKING ................................................................. 41TROUBLE SHOOTING ............................................ 42ADJUSTMENT ........................................................ 44TERMINAL FUNCTION ........................................... 62PC BOARDTX-RX UNIT (X57-7390-10) (B/2) ....................... 71TX-RX UNIT (X57-7390-10) (A/2) ....................... 72DISPLAY UNIT (X54-3640-10) ............................ 76SCHEMATIC DIAGRAMTX-RX UNIT (X57-7390-10) ................................ 78DISPLAY UNIT (X54-3640-10) ............................ 93INTERCONNECTION DIAGRAM ............................ 96BLOCK DIAGRAM ................................................... 98LEVEL DIAGRAM .................................................. 100SPECIFICATIONS ................................. BACK COVERCONTENTS