Harman kardon hk 440 vxi service manual

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The Harman Kardon _
Model hk440 in MN. m (
HIGH VOLTAGE/ HIGH CURRENT STEREO RECEIVER

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

up: North America area model
G3: General model

harman/kardon

240 Crussways Park Wesl,Woodbury,N.Y.11797 _
1'1273152122A6 P7038801 1500 Primed in Japan

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SPECIFICATIONS

Nominal Limit

Nominal Limit

0 FM SECTION Channel Separation at 10kHz
Tuning Range 87.5~108.0 MHz Video/CD 59ng45dB
50dB Quieting Sensitivity Phono 57ng45dB
Mono 15.7dBfg19dBf IM Distortion Ratio 0.05% §O.1%
Stereo 38dBfé4IdBf RMS Output Power 34W;30W
Usable Sensitivity 1 I.7dBf§15dBf 89, 1kHz, THD 0.1%
Image Ratio 45ng40dB Damping Factor at 1kHz 63g 50
IF Rejection 105dB ; 75dB Tone Control Characteristics
Spurious Response Rejection 96dB ; 60dB Bass at 50Hz
Capture Ratio 1.5dB§2dB Boost 10dB¢2dB
Alternate Channel Selectivity 75dB ; GOdB Cut - 10dB i 2dB
AM Rejection BOdB g45dB Treble at 10kHz
Signal to Noise Ratio Boost 10dB 1 2dB
Mono 78ng73dB Cut -10dB:2dB
Stereo 72dB ; 67dB Loudness Control
Total Harmonic Distortion at 10kHz adBt1dB
Mono 0.09%§0.3% at 50Hz 10dB: 2dB
Stereo 0.07%§0.4% DC Output Voltage
Stereo Separation at 1kHz 55dB g45dB L channel OmV i 60mV
0AM SECTION R channel . OmVi60mV
Tuning Range 520~1,710kHz R'fijpgqgjgzamn 3
Usable Sensitivity
External Antenna ZOuV g 40uV (20H2/20kH2) : 1dB
Loop Antenna 400uV/m O DIMENSIONS 17-3/8 x 4 x14-1/2"
Selectivity 26dB g20dB (W X H x D) (443 x 103 x 368 mm)
Signal to Noise Ratio 52ng47dB
Image Rejection 40ng30dB .WEIGHT 13'9 lbs. (6'3 kg)
IF Rejection 66dB ; 50dB :10in SUFPLY d I AC120V 60H
ort merrca area mo e , 2
'AUD'0 SECTION General model AC220/240V, 50/60Hz
Usable SenSItIVIty
Video/CD 135mV i 25mV ' POWER CONSUMPTION
Phono 2.2mV:O.2mV North America area model 180W
Signal to Noise Ratio General model 140W
mtg/CD 3:133 : gggg These specifications are service target specs.

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

LEAKAGE TEST (FOR SERVICE ENGINEERS IN THE USA.)

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 devices
such as nonmetallic control knobs, LEAD
insulating fishpapers, cabinet backs,
adjustment and compartment covers
or shields, isolation resistor-capacity
networks, mechanical insulators, fa
etc. which were removed for servic-
ing are properly reinstalled. VTVM

3. Be sure that no shock hazard exists; check for leakage .0 Ac SCALEo.
current using Simpson Model 229 Leakage Tester,

SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST

T0 AC GROUND SUCH
AS WATER PIPEEX CABLE,
CONDUIT, ETC.

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

HIGH
VOLTAGE
OR + LEAD

GROUND

standard equipment item No. 21641, RCA Model 15m
WT540A or use alternate method as follows: 10W
Plug the power cord directly into a 120-volt AC JVVt,

receptacle (do not use an Isolation Transformer for
this test). Using two clip leads, connect a 1500
Ohm, Io-watt resistor paralleled by a 0.15 [if capacitor, I I
in series with all exposed metal cabinet parts and

a known earth ground, such as a water pipe or conduit. 0.15MF
Use a VTVM or VOM with 1000 Ohms per volt, or
higher sensitivity to measure the AC voltage drop

. . TEST PROBE

across the resrstor. (See Diagram.) Move the resrstor

connection to each exposed metal part having a

return path to the chassis (antenna, metal, cabinet, To EXPOSED CONNECT To KNOWN

screw heads, knobs and control shafts, escutcheon, METAL PARTS EARTH GROUND
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.)

A reading of 035 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected

before returning the unit to the owner.