SERVICE MANUAL
This product complies with the
RoHS
directive for the European market.
This product uses Lead Free solder.
© 2011-12 PRINTED IN JAPAN
B53-7004-00 (Y) 330
900MHz DIGITAL BASE-REPEATER
NXR-901
Badge
(B43-1188-04)
Main panel
(A62-1142-02)
Knob (VOL)
(K2
9
-453
9
-04)
Lead wire with
connector (DSUB-
9
P)
(E37-1311-05)
Lead wire with
connector (DSUB-25P)
(E37-1310-05)
Lead wire with
connector (BNC-RX)
(E37-1303-05)
Lead wire with
connector (ACC15)
(E37-1313-05)
Lead wire with
connector (BNC-REF.)
(E37-1304-05)x2
Modular jack
(E58-0526-05)
RF coaxial
receptacle (BNC)
(E04-0463-05)
Fanmotor
(F0
9
-0488-15)
DC cord
(E30-7581-05)
Blade fuse
(F05-7521-05)
Cover (Fan)
(F07-1
9
30-05)
Modular jack
(E58-0516-05)
Modular jack
(E58-0533-05)x2
CONTENTS
GENERAL .......................................................... 2
SYSTEM SET-UP ............................................... 3
REALIGNMENT ................................................. 3
OPERATING FEATURES .................................. 5
INSTALLATION .................................................. 6
CIRCUIT DESCRIPTION ................................... 8
COMPONENTS DESCRIPTION ...................... 23
TERMINAL FUNCTION ................................... 27
PARTS LIST ..................................................... 41
EXPLODED VIEW ............................................ 68
PACKING ......................................................... 70
TROUBLE SHOOTING .................................... 71
ADJUSTMENT ................................................. 79
PC BOARD....................................................... 90
SCHEMATIC DIAGRAM ................................ 112
OPTIONAL ACCESSORIES
KES-5 (EXTERNAL SPEAKER) ................ 117
KXK-3 (M3) (OCXO UNIT) ......................... 118
SPECIFICATIONS .........................BACK COVER
APPENDIX 1 (BLOCK DIAGRAM)
APPENDIX 2 (INTERCONNECTION DIAGRAM)
APPENDIX 3 (SCHEMATIC DIAGRAM X53-413)
APPENDIX 4 (SCHEMATIC DIAGRAM X53-414)
APPENDIX 5 (SCHEMATIC DIAGRAM X55-312)
APPENDIX 6 (SCHEMATIC DIAGRAM X56-315 A/3)
OCXO UNIT
KXK-3 M3 version
Summary of Contents for NEXEDGE NXR-901
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