Service Manuals, User Guides, Schematic Diagrams or docs for : Harman Kardon TU TU-940 TU-940

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The Harman Kardon
Model TU-940                                                                                                                                                                     Manual A

AM/FM STEREO DIGITAL RDS TUNER




             TU 940 RDS                                                                                                                                                            Tuning


                                                                                                                                Remote sensor       Display     PTY
                                           LOCAL DX   RDS PTY RT CT TA EON TUNED STEREO
                                                                                      MONO TUNINGRESET
                                                                                                P



                   1      2   3   4   5                                                                                                             Direct    Character
                                          RF LEVEL
                                                 STANDBY        CLOCK
                                                           NARROW
                                                        WIDE        TIMERON OFF SLEEPAUTOMEMORY
                                                                                              SCAN



                   6      7   8   9   0
                                                                                                         Auto/Man RF Mode FM Mode




  Power                                                                                                                                    Memory       Tune/Pst      Pst Scan


                                                                                                          Band    IF Band   Display
                                                                                                                             Mode




                                             CONTENTS
LEAKAGE TEST....................................2                                    GENERAL UNIT EXPLODED VIEW.........21
SPECIFICATIONS..................................3                                    PRINTED CIRCUIT BOARDS.................22
CONTROL AND FUNCTIONS..................4                                             ELECTRICAL PARTS LIST.....................24
BLOCK DIAGRAM.................................7                                      IC FUNCTIONAL BLOCK DIAGRAM........32
DISASSEMBLY PROCEDURES...............8                                               PACKAGE..........................................33
CIRCUIT DESCRIPTION.......................13                                         WIRING DIAGRAM..............................35
ALIGNMENT PROCEDURES.................16                                              SCHEMATIC DIAGRAMS......................36




                                                                                                                        harman/kardon
                                                                                            Parts and Service Office
                                                                       80 Crossways Park West, Woodbury, N.Y. 11797
                                                                                                    Printed in Korea
LEAKAGE TEST
Before returning the unit to the user, perform the        model WT 540A or use alternate method as follows:
following safety checks:                                  plug the power cord directly into a 230-volt AC
1. Inspect all lead dress to makes certain that leads     receptacle ( do not use an isolation transformer for
    are not pinched or that hardware is not lodged        this test.). Using two clip leads, connects a 1500
    between the chassis and other metallic parts in the   ohm, 10-watt resistor paralleled by a 0.15 

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