KD-LX555R

SERVICE MANUAL CD RECEIVER 49793 4 2003 KD-LX555R S KD-LX555R S T D M 7 8 9 10 11 12 SOURCE Area Suffix E ------ Continental Europe TABLE OF CONTENTS 1 2 3 4 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.49793 2003/5 SECTION 4 Description of major ICs 4.1 BA6956AN (IC830, IC831) : Reversible motor driver Block diagram TSD CONTROL LOGIC 1 VREF 2 OUT2 3 RNF 4 OUT1 5 VM 6 Vcc 7 FIN 8 GND 9 RIN Pin function Pin No. Symbol 1 2 3 4 5 6 7 8 9 VREF OUT2 RNF OUT1 VM Vcc FIN GND RIN Function Output high voltage level control terminal Output terminal for motor GND of driver division Output terminal for motor Power supply for driver division Power supply for signal division Input terminal for control logic GND Input terminal for control logic Truth table FIN H L H L RIN L H H L OUT1 OUT2 H L L L H L MODE Forward rotati...