Harman kardon hk 990 vxi service manual

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The Harman Kardon
Model hk990in

HIGH VOLTAGE/ HIGH CURRENT
STEREO RECEIVER

Teemiceal Manual

Manual 135A

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

: North America area model

: North America area model Black version
: General model

: General model Black version

: Australia model Black version

@Qfiéé

harman/kardon

240 Crossways Park West, Woodhury, N.Y. 11797
1112-3152135A9 P-078803 1500 Printed in Japan

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SPECIFICATIONS

OFM SECTION
Tuning Range

SOdB Quieting Sensitivity

Mono

Stereo
Usable Sensitivity
Image Ratio
IF Rejection

Spurious Response Rejection

Capture Ratio

Alternate Channel Selectivity

AM Rejection

Signal to Noise Ratio
Mono
Stereo

Total Harmonic Distortion

(65dE'i 1kHz Input)
Mono
Stereo

Stereo Separation at 1kHz

0AM SECTION
Tuning Range

North America area model
General and Australia models

Usable Sensitivity
Selectivity
Signal to Noise Ratio
Image Rejection
IF Rejection
IAUDIO SECTION
Usable Sensitivity
Video/CD
Phono (MM)
Phono (MC)
Signal to Noise Ratio
Video/CD
Phono (MM)
Phono (MC)

chassis and other metal parts in the

unit.

Nominal Limit

87.5 N 108.0MH2

15.2dBf é 19dBf
37dBf é 41dBf

11.2dBf é 15dBf
75dE g 60dB
IOOdB 3 85dB
95dB
1.5dB é 2dB
SOdB g 65dB
GOdB ; 45dB

80dB g 74dB
73.5dB g 70dB

0.08% g 0.3%
0.08% § 0.3%
53dB g 45:13

520 1,620kHz

531 1,602kHz

16 y Vm 40 me
32dfl _ 25dB
Kids a 48dB
40dB a 32dB
62dB Z SOdB

NIIAI I

135mV i 25mV
2.2mV i 0.2mV
2.2mV 1' 0.2mV

77.5dB 2 74dB
76:18 2 73dB
76:13 2 72dB

2. Replace all protective devices such
as nonmetallic control knobs, in-
sulating fishpapers, cabinet backs,
adjustment and compartment covers

or shields,

isolation

resistor-

capacitor networks, mechanical in-

sulators, etc.

3. Be sure that no shock hazard exists; check for leakage current
using Simpson Model 229 Leakage Tester, standard equipment
item No. 21641, RCA Model WT540A or use alternate method as

follows:

Plug the AC line 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;:F
capacitor, in series with all exposed metal cabinet parts and a
known earth ground, such as a water pipe or conduit. Use a VTVM
or VOM with 1000 ohms per volt, or higher sensitivity to measure

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

Channel Separation at 10kHz
Video/CD
Phono (MM)
Phono (MC)
IM Distortion Ratio
RMS Output Power
80, 1kHz, THD 0.08%
Damping Factor at 1kHz
Tone Control Characteristics
Bass at 50H:
Boost
Cut
Treble at 10kHz
Boost
Cut
Loudness Control
at 10kHz
at 50Hz
Subsonic Control
at 15H:
DC Output Voltage
L channel
R channel

Nominal Limit

49dB ; 40dB
49.2dB Z 40dB
49.2dB E 40dB
0.015% § 0.2%

1 04W
57

90W

;
250

10dB i ZdB
-10dB i ZdB

10dB i 2dB
--1DdB i 2dB

3dB i 1dB
10dB i ZdB

-3.5dB i 1.5dB

OmV i GOmV
OmV i GOmV

RIAA Equalization at Tape Out (20Hz/20kHz)
0.013dBi0.5dB/0.02dBi0.5dB

ODIMENSIONS (W x H x D)

OWEIGHT

OPOWER SUPPLY
North America area model
General and Australia models

OPOWER CONSUMPTION
North America area model
General and Australia models

17-3/8" x 5-1/4" x 14-1/2"
(443 x 134 x 368 mm)
22 lbs. (10 kg)

AC120V, 60H:
AC220/240V, 50/60Hz

280W (340VA)
250W

These specifications are Service target specs.

Specifications and components subject to change without notice.
Overall performance will be maintalned 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

SIMPSON MODEL 229 ETC, FOR
LEAKAGE TEST

To AC oaounp SUCH
AS WATER on GAS PIPE.
HIGH GROUND BX CABLECDNDUIT. ETC.

VOLTAGE LEAD
OFI +LEAD

9%

VTVM
'0 AC SCALE 0

TEST PROBE

T0 EXPOSE D
METAL PA FITS

1.5KOHM
IOW

CONNECT TO KNOWN
EARTH GROUND

the AC voltage drop across the resistor. (See Diagram.) Move the resistor 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.)
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.