Harman kardon hd 300 service manual

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The Harman Kardon
Model HD3OO
COMPACT DISC PLAYER

Manual 109A

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CLASS 1 LASER PRODUCT '

Product complies with DHHS rules CFR subchapter J part
1040: 10 at date of manufacture.

DANGER -invisible laser radiation when open and interlock
failed or defeated. Avond direct exposure to the beam.

CAUTION fuse of all controls, adiustments or performance
of procedures other than those specified herein may result in
hazardous radiation exposure.

Be Careful of the Laser Pickup

Although you cannot see it from the outstcle, a laser pickup is
located under the disc tray and a precision lens l5 built in It.
Since the laser pickup, including the lens element, is
especially sensitive to dust, keep the dlSc tray closed when
not in use. Also do not put your hand inside the unit

CLASS 1

LASER PRODUCT

harman/kardon

240 Crosswavs Park West,Woodbury,N.Y 11787
l1l273152109A3 90886101500 Printed In Japan

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TABLE OF CONTENTS

SPECIFICATIONS ........................................................................

SAFETY PRECAUTIONS
CONTROLS AND FUNCTIONS
REMOTE CONTROL
DISASSEMBLY PROCEDURES

DISASSEMBLING THE CD PLAYER MECHANICAL ASSEMBLY

POWER CORD REPLACEMENT
BLOCK DIAGRAM
ADJUSTMENT PROCEDURE
INSTALLATION OF DISC DRAWER AND CLAMPER .
TROUBLE SHOOTING
lC BLOCK DIAGRAM
GENERAL UNIT EXPLODED VIEW
CD PLAYER MECHANISM EXPLODED VIEW
GENERAL UNIT PARTS LIST ......................
CD PLAYER MECHANISM PARTS LIST
ELECTRICAL PARTS LIST ........
PACKAGE ......
P. C. BOARDS

WIRING DIAGRAM .....
SCHEMATIC DIAGRAM

SPECIFICATIONS

System

Signal Detection

Error Correction

Sampling Frequency (Disc)
D/A Conversion Frequency
Quantization

Channels

Frequency Response

Total Harmonic Distortion
Dynamic Range
Signal-to-Noise Ratio
Channel Separation

Wow 8 Flutter

Line Output Level/

: Compact Disc Digital Audio
: SeBeam Semiconductor Laser

: CIRC System Canada model

: 44.1kHz

: 88.2kHz Dimensions (W x H x D)
: 16 Bit Linear

: 2 Channel Stereo
:4H272OkHz 1-0.5dB
: 0.01% (1kHz)

: 100dB

: 98dB

: 80dB lIkHzI

: Immeasurable

: 2.0V/10k Ohms

Load Impedance

Adjustment of this unit requires following measuring
instruments and jigs.

0 Oscilloscope (3 or more modes, 100MHz, X-Y input

possible) 1740A

Dual Channel Voltmeter (ACVM) MN44SB

Distortion Meter 339A

Frequency Counter FT-2752

Optical Power Meter LPMBOOO

Jitter Meter MJM-634

Low Frequency Oscillator (A. F. OSCi 3312A

Turntable Base Space Jig SJ-3OO

Diffraction Grating Screwdriver SD»300

Test Discs:
Philips Test Sample 5 814 125-21Non-Scratched)
Philips Test Sample 6A 814 126-2 iScratchedi
Sony Type III

Power Supply
General model

: AC 220/240V, 50/60Hz
: AC 120V, 60Hz
Power Consumption : 18 Watts

(443 x 103 x 285 mm)
Weight : 10.2lbs. (4,6kgl
Accessories : Stereo Connecting Cords,

Remote Control,

AA Battery (x 2)

Speciiications and components subject to change Without notice. Overall
performance Will be maintained or Improved

IMPORTANT

Before plugging the unit in, be sure to remove the transpor-
tation screws on the bottom of the unit.

1. Place a cloth under the unit in order to prevent it from
being scratched.

2 Turn the unit upside down,

3. Remove the three transportation screws with a screw
driver, as shown in the illustration below.

NOTE: Be sure to tighten screws by the reverse procedure
before transporting the unit.

,1 1771/2" x471/16" x l 171/2"