Harman/Kardon HD755 free download

File name HarmanKardon-HD755 cd.pdf

The Harman Kardon www.vintage-audio-laser.com Model HD755 silver COMPACT DISC PLAYER Technical Manual HD755 Standby CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. LASER BEAM SAFETY PRECAUTIONS ... 2 CONTROL AND FUNCTIONS ... 4 SPECIFICATIONS AND FEATURES ... 7 AUDIO CHARACTERISTICS TEST PROCEDURE ... 9 CIRCUIT DESCRIPTION ...11 CRITICAL I.C. SPECIFICATION ... 15 PART LIST ... 41 TROUBLE SHOOTING GUIDE ... 48 9. 10. 11. 12. 13. BLOCK DIAGRAM ... 54 SCHEMATIC DIAGRAMS ... 55 PCB LAYOUT ... 59 EXPLODED VIEW ... 62 PACKING DRAWING ... 63 * Harman/ kardon continually strives to improve its products. The HD750 Compact Disc Player design and specifications are subject to change and may differ from the published specifications and descriptions, but will always equal or exceed the original specifications unless otherwise stated. DANGER: Invisible laser radiation when open and interlock failed or defeated. AVOID DIRECT EXPOSURE TO BEAM. Parts and Service Office 250 Crossways Park Dr., Woodbury, N.Y. 11797 1112-FL8350 P9603 1200 Printed in Hong Kong www.vintage-audio-laser.com HD755 LASER BEAM SAFETY PRECAUTIONS www.vintage-audio-laser.com CLASS 1 LASER PRODUCT CAUTION Invisible laser radiation when the unit is open. Do not stare into beam. CAUTION: USE OF ANY CONTROLS, ADJUSTMENT, OR PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. This compact disc player uses a pickup that emits a laser beam. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 1 foot away from the pickup lens when the diode is turned on. Do not look directly at the laser beam. CAUTION: Using controls and adjustment, or doing procedures other than those specified herein, may result in hazardous radiation exposure. 2 SAFETY PRECAUTIONS HD755 www.vintage-audio-laser.com This symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Caution: To prevent electric shock do not use this (polarized) plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent bla