This product complies with the
RoHS
directive for the European market.
This product uses Lead Free solder.
SERVICE MANUAL
© 2012-9 PRINTED IN JA PAN
B53-7032-00 (Y) 672
NX-720H(G)/720H
VHF DIGITAL TRANSCEIVER
Panel assy
(A62-1200-03)
Badge
(B43-1675-04)
Key top
(K2
9
-
9
47
9
-01)
Modular jack
(E58-0535-05)
CONTENTS
GENERAL ....................................................2
SYSTEM SET-UP .........................................4
REALIGNMENT ...........................................4
INSTALLATION ............................................7
DISASSEMBLY FOR REPAIR .....................9
CIRCUIT DESCRIPTION ...........................11
COMPONENTS DESCRIPTION ................17
PARTS LIST ...............................................19
EXPLODED VIEW ......................................29
PACKING ...................................................30
TROUBLE SHOOTING ..............................31
ADJUSTMENT ...........................................35
TERMINAL FUNCTION .............................56
PC BOARD
DISPLAY UNIT (X54-3830-10) ...............60
TX-RX UNIT (X57-8230-1X)....................62
INTERCONNECTION DIAGRAM ...............66
SCHEMATIC DIAGRAM ............................67
BLOCK DIAGRAM .....................................78
LEVEL DIAGRAM ......................................81
OPTIONAL ACCESSORIES
KRA-40 ..................................................82
SPECIFICATIONS ................. BACK COVER
Summary of Contents for Nexedge NX-720H
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