Harman Kardon FL8450 Technical Manual

The Harman Kardon
Model FL8450
Manual A
COMPACT DISC CHANGER
yechnical Manual
harman/kardon FL8450
= CONTENTS a
LASER BEAM SAFETY PRECAUTIONS
BEFORE REPAIRING THE COMPACT DISC
3
LEAKAGE TEST -:
od
SPECIFICATIONS cereeeerseeeeees 5
CONTROL AND FUNCTIONS - 7
BLOCK DIAGRAM crcesrereeseseeeers "9
DISASSEMBLY INSTRUCTIONS "11
PICKUP REPLACEMENT.
------
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CIRCUIT DESCRIPTION «+++ ++-+ oe 15
ALIGNMENT AND ADJUSTMENT -++eeseseeeere eee 21
TROUBLESHOOTING -+-+--+-seseseseeesseeesesteeeeesees 25
PRINTED CIRCUIT BOARDS «++ssssceescsrcesereeeeees 34
GENERAL UNIT EXPLODED VIEW -
GENERAL UNIT PARTS LIST
ELECTRICAL PARTS LIST -+-++--++++0+5++ --46
IC FUNCTIONAL BLOCK DIAGRAM +50
PACKAGE seveivcossscssscaecsesesvcstecandeoes "56
WIRING DIAGRAM --:- 57
SCHEMATIC DIAGRAM «sseccesecetereeesessneanersrees 58
TRANSISTOR AND DIODE LEAD
IDENTIFICATION ssssscceseseseseseenseenseevereeesossnenae 59
DANGER: Invisible laser radiation when open and interlock failed or defeated.
AVOID DIRECT EXPOSURE TO BEAM.
harman/kardon
Parts and Service Office
80 Crossways Park West, Woodbury, N.Y. 11797
1112-FL8450A P9502 1500 Printed in Korea