Harman kardon hk 6650 r service manual

Page 1

The Harman Kardon

Model HK6650R

INTEGRATED AMPLIFIER

Manual 186A

Tecohmfial Mammal

harman/kardon HKfiESIW

@@@@%

The following marks found in the parts list of this manual
identify the models as follows.
: North America area model Black version
: German model

: German model Black version

: International model Black version
:AsialOceania model Black version

SPECIFICATIONS
LEAKAGE TEST .....
DISASSEMBLY PROCEDURES ..
POWER CORD REPLACEMENT
CONTROLS AND FUNCTIONS .....
GENERAL UNIT PARTS LIST .
GENERAL UNIT ..........................

CONTENTS

Limlpioioiu'm

ALIGNMENT PROCEDURES ..
BLOCK DIAGRAM .....
P. C. BOARDS ...........
ELECTRICAL PARTS LIST
SCHEMATIC DIAGRAMS
WIRING DIAGRAM ..............

harman/kardon

Pans and Service Office
240 Crossways Park West,Woodbury,N.Y. 11797
1112-0240A152 P4 29203 1500 Primed in Japan

80999)IH

Page 2

HK6650R

SPECIFICATIONS
Nominal Limit Nominal Limit
RMS Output Power Tone Control Characteristics
so, 1 kHz THD 0.08% 105 wyoow ®9®® Bass (at 50 Hz)
77.5w;7ow {B Boost 1011312113
4Q,1kHzTHDO.1% 116Wg100W Cut 10dBiZdB
High-instantaneous Current Treble (at 10 kHz) A
Capability (HCC) 80 Ag70A ®®®® Boost 10dB;l:2 dB
72Ag65A .13 Cut 10dB:l:2dB
Half Power Bandwidth <10 Hz~100 kHz <10 Hz~70 kHz Phase Correct Loudness
Frequency Response (at 50 Hz) 6 dBiS dB
(at - 3 dB down) 0.25 Hz~280 kHz <1 Hz~g250 kHz Filters
EM? Subsonic15 Hz -3 dBiz1dB ®®®
0,25 Hz~240 kHz <1 Hz~g200 kHz 063 -6 (181:1 dB 0G3.
Input Sensitivity DC Output Voltage
CD 135 mViZS mV L channel 0 mViGD mV
Phono (MM) 2.2 mVi0.3 mV @Ew R channel 0 mV:l:60 mV
2.3 mVi0.3 mV °® RIAA Equalization at Tape Out
Phono (MC) 130 pViZO uV GD®® (20 Hz/20 kHz) (No load) +0.2 11310.5 dB/O «1510.5 dB

Signal to Noise Ratio
CD

Phono (MM)

Phono (MC)

140 1.1V:l:20].lV (9GB

76 de7O dB -��39®®
79 d3375 dB ([3

75 dages dB macaw
73 ng73 dB 1):)

73 dBees dB ®G®®

Phono Over load (No load)
Phono (MM)
Phono (MC)
Dimensions (W x H x D)

Weight
Power Supplies

200 ng160 mV
11 ng8 mV
17-1/2" x 5-1/4" x15»11/16"
(443 x134 x 398 mm)
24.7 lbs (11.2 kg)

76 dB £72 dB 113
Channel Separation (at 10 kHz)

CD 52 ng43 dB
Phono (MM) 54 ng43 dB
Phono (MC) 47 ng43 dB .390qu

50ng43 dB (3
0.027 %§o.1%
75g65 ®0®®
84g65 .3

IM Distortion Ratio
Damping Factor (at 1 kHz)

LEAKAGE TEST (FOR SERVICE ENGINEERS IN THE U.S.A)

North America area model
International model

Power Consumption
North America area model
International model

AC 120, 60 HZ
AC 230/240 V. 50/60 Hz

220 W (ZSOVA)
250 W

These specifications are service target specs.

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

Before returning the unit to the user, perform the following safety checks:

1. Inspect all lead dress to make
certain that leads are not pinched
or that hardware is not lodged
between the chassis and other
metal parts in the unit.

2. Be sure that any protective de-
vices such as nonmetallic control
knobs, insulating fishpapers,
cabinet backs, adjustment and
compartment covers or shields,
isolation resistor-capacity net-
works, mechanical insulators, etc.
which were removed for servicing
are properly reinstalled.

3. Be sure that no shock hazard exists; check for leak~
age current using Simpson Model 229 Leakage
Tester, standard equipment item No. 21641, RCA
Model WT540A or use alternate method as follows:
Plug the power cord directly into a 120-volt AC
receptacle (do not use an Isolation Transformer for
this test). Using two clip leads, connect a 1500 Ohm,
10-watt resistor paralleled by a 0.15 pF capacitor, in
series with all exposed metal cabinet parts and a
known earth ground, such as a water pipe or con-
duit. Use a VTVM or VOM with 1000 Ohms per volt,
or higher sensitivity to measure the AC voltage drop
across the resistor. (See Diagram.) Move the resis-
tor connection to each exposed metal part having a
return path to the chassis (antenna, metal, cabinet,
screw heads, knobs and control shafts, escutcheon,
etc.) and measure the AC voltage drop across the
resistor. (This test should be performed with the
power switch in both the On and Off positions.)

TO EACH EXPOSED
METAL SURFACE OF
UNlT UNDER TEST

SIMPSON MODEL 229 ETC FOR
LEAKAGE TEST

T0 AC GROUND SUCH
AS WATER PIPEBX CABLE

HIGH GROUND CONDUIT, ETC.
VOLTAGE LEAD A
OH + LEAD
VTVM
-0 AC SCALEO_

1.5km
lDW

VVV

_|l___.

0.15MF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO KNOWN
EARTH GROUND

A reading of 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected

before returning the unit to the owner.