Harman kardon hd 7625 service manual

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The Harman Kardon

Model HD7625 ManualA
COMPACT DISC PLAYER

; Temmceelfl meefl

halmanr kardon HD7635 mm, .l . m :K- m l

no The following marks found in the parts list of this manual
identify the models as follows:
(39 : North America area model Black version
w : International model Black version
9 : General Model
G? : General Model Black version

harman/kardon

240 Crossways Park West, Woodbury, N. Y. 11797
1112-HD7625-A P9307 1200 Printed in USA

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r N
CLASS1 LASER PRODUCT

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

DANGER - invisible laser radiation when open and interlock fated
or defeated. Avoid dired exposure to the beam.

CAU'I10N - use of all controls, adjustments or performance of
procedures other tlan those specified herein may result in
hazardous radiation exposure.

GLASS 1

LASER PRODUCT

Be careful of the Laser Pickup.

Although you cannot see it from the outside, a laser
pickup is located under the disc tray and a precision
lens is built in it.

Since the laser pickup, including the tense element,
is especially sensitive to dust, keep the disc tray
closed when not in use. Also do not put your hand
inside the unit.

ADVARSEL:
Usynlig Iaserstraling ved abning nar sikkerhedsaibrydere er
ude at funktion. Undga udsaettelse for straling.

VAROITUS!
Laite sisaitia'a iaserdiodin, joka Iahettaa nakymatonta silmille

vaaraliista lasersateilyat

O J
CONTENTS
SPECIFICATIONS .............................. t CIRCUIT DESCRIPTION ........................ 19
SAFETY PRECAUTIONS ......................... 2 GENERAL UNIT (EXPLODED VIEW) .............. 23
AC LEAKAGE TEST ............................ 2 CD MECHANISM (EXPLODED VIEW) ............. 25
ELECTROSTATICALLY SENSITIVE DEVICES ....... 3 GENERAL PARTS LIST ......................... 26
CONTROLS AND FUNCTIONS ................... 4 CD MECHANISM PARTS LIST ................... 27
REMOTE CONTROL ............................ 5 ELECTRICAL PARTS LIST ...................... 28
DISASSEMBLY PROCEDURES ................... 6 IC DIAGRAMS ................................. 33
POWER CORD REPLACEMENT .................. 7 P. C. BOARDS ................................ 38
ADJUSTMENT PROCEDURE ..................... 8 WIRING DIAGRAM ............................. 4O
TROUBLESHOOTING .......................... 10 SCHEMATIC DIAGRAM ......................... 41
IC FUNCTIONS ............................... 14
SPECIFICATIONS

Nominal Limit
System : Compact Disc Digital Audio

D/A Convener

: Dual 18 Bit Linear D/A Converters, BFs Digital Filter, RLS

Signal Detection
Error Correction
Low Level Linearity
Frequency Response

(20Hz to 20kHz)
Total Harmonic Distortion (THD)
Dynamic Range
Signal to Noise Ratio
Channel Separation
Line Output Level/Impedance
Digital Output Level/Impedance
Power Supply
Power Consumption
Dimensions

Weight

: S-Bea

(Real-time Linear Smoothing)

m Semiconductor Optical Laser Pickup
CIRC System
+/-O.5dB @-90dB
DdB 0.5dB

1
0.0025% <0.006%
98dB 293dB
iO4dB k100dB
QSdB AQOdB
2.0V 2.0V 0,5V @ 10k
0.5Vp-p o.Sthp 0.1Vp-p @75
A0230/240V, 50/60Hz i Q
22 Watts

173/5" x 4" x 13'
443mm x 103mm x 326mm
12.3ibsl5.6kg

Specifications and components subject to change without notice. Overall performance will be maintained or improved.