© 2007-12 PRINTED IN JAPAN
B51-8803-00
(
S
)
343
UHF DIGITAL TRANSCEIVER
NX-800
SERVICE MANUAL
This 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 .................................................................. 2
SYSTEM SET-UP ...................................................... 4
REALIGNMENT ......................................................... 5
INSTALLATION ......................................................... 8
DISASSEMBLY FOR REPAIR ................................. 15
CIRCUIT DESCRIPTION .......................................... 18
COMPONENTS DESCRIPTION .............................. 24
PARTS LIST ............................................................. 27
EXPLODED VIEW.................................................... 40
PACKING ................................................................. 41
TROUBLE SHOOTING ............................................ 42
ADJUSTMENT ........................................................ 44
TERMINAL FUNCTION ........................................... 62
PC BOARD
TX-RX UNIT (X57-7390-10) (B/2) ....................... 71
TX-RX UNIT (X57-7390-10) (A/2) ....................... 72
DISPLAY UNIT (X54-3640-10) ............................ 76
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-7390-10) ................................ 78
DISPLAY UNIT (X54-3640-10) ............................ 93
INTERCONNECTION DIAGRAM ............................ 96
BLOCK DIAGRAM ................................................... 98
LEVEL DIAGRAM .................................................. 100
SPECIFICATIONS .................................BACK COVER
CONTENTS
