Harman kardon hk 6350 r service manual

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The Harman Kardon ,
Model HK6350R mum
INTEGRATED AMPLIFIER

Teemfieefl MGRUGH

harmanr kardon H

The following marks found in the parts list of this manual
identify the models as follows.

Eb :North America area model Black version

9 : German model

® :German model Black version

fl : International model Black version

w :AsialOceania model Black version

HOSSQMH

CONTENTS
SPECIFICATIONS 2 ALIGNMENT PROCEDURES ..
LEAKAGE TEST ..... 2 BLOCK DIAGRAM
CONTROL AND FUNCTIONS.. ...3 P. C. BOARDS
DISASSEMBLY PROCEDURES ...5 ELECTRICAL PAR ..
POWER CORD REPLACEMENT .. 5 SCHEMATIC DIAGRAMS
GENERAL UNIT PARTS LIST .. 6 WIRING DIAGRAM ............. 5
GENERAL UNIT ....................... 7

harman/kardon

Parts and Service Office
240 Crossways Park WesI,Woodbury,N.Y. 11797
1112-0200A152 P429201 1500 Primed in Japan

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SPECIFICATIONS
Nominal Limit Nominal Limit
RMS Output Power Treble Turnover Frequency
3 o, 20 Hz~20 kHz THD 0.1 % 7o waeo w 63MB (2 kHz/6 kHz)
47 w; 40 w G®® Treble at 10 kHz
4 S), 1 kHz THD 0.3 % 68 Wg60 W Boost 10 dBiZ dB
High instantaneous Current Cut 10 dszz dB
Capability (HCC) 40 A335 A GDME) Filters
33 A330 A @6313) Subsonic 15 Hz, -3 r1321 dB
Half Power Bandwidth <10 Hz~100 kHz<10 kHz~60 kHz DC Output Voltage
Frequency Responce L channel 3 mV:60 mV
(at - 3 dB down) 0.65 Hz~180 kHz<1 Hz~g150 kHz* R channel 4 mViGO mV

Input Sensitivity RIAA Equalization at Tape Out
Tuner 135 mVi25 mV (20 HZ/20 kHz) 0.07 (1310.5 dB [-0.12 dBi0.5 dB
Phono (MM) 2.2mV :3; mV Phono Overload (No load)

Fhono (MC) 120 pvfig pV Phono(MM) 115 ng110 mV

Signal to Noise Ratio Phono (MC) 6.1 rnV35 mV
Tuner 82 ng75 dB Dimensions (Wx H x D) 174/ x 4" x 14-1/ "
Phono (MM) 79 ng73 dB (443 x 103 x361 mm)

, Phono (MC) 75.5 ng70 dB Weight 17 lbs. 10 oz.(8 kg)
{ Channel Separation at 10 kHz Power Supplies

Tuner 55 ng45 dB North America area model AC 120, 60 Hz
Phono (MM) 61 ng45 dB International model AC 230/24OV, 50/60 Hz
Phono (MC) 54.5 ng43 dB Power Consumption

IM Distortion Ratio 0.031 %§0.1 % North America area model

Damping Factor at 1kHz 61350 International model

. Tone Control Characteristics
Bass Turnover Frequency * 0.65 Hz~135 kHz <1 Hz~g100 kHz
(200 Hz/400 Hz) International model 9 @
Bess at 50 Hz
3003 $10 dBiZ dB These specifications are service target specs.
Cut :10 dBiZ dB

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

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

H KREOR

TO EACH EXEOSE
METAL SURFACE

UNlT UNDER TEST

SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST

0
OF
HlGH
VOLTAGE
OH + LEAD

GROUND
LEAD

CONDUIT, ETC.

é

VTVM

,0 AC sumo.

Plug the power cord directly into a 120-volt AC 1135,
receptacle (do not use an Isolation Transformer for VW

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-

0.15uF

I'-

. TEST PROBE

tor connection to each exposed metal part havmg a

return path to the chassis (antenna, metal, cabinet,

screw heads, knobs and control shafts, escutcheon, To EXPOSED CONNECT TO Known

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.)

METAL PARTS

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.

TO AC GROUND SUCH
AS WATER PIPEBX CABLE.