Free Audio Service Manuals - Free download harman kardon hk 385 i service manual

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SPECIFICATIONS

Nominal Limit
C FM SECTION
Tuning Range
50dB Quieting Sensitivity

87.3~108.4 MHz

Mono 15.1dBf519dBf

Stereo 36.5dBf s 40dBf
Usable Sensitivity 10.2dBfS15dBf
Image Ratio 52dB242dB
lF Rejection SOdB 2 75dB
Spurious Response Rejection 87dB260dB
Capture Ratio 1.0dB s 2dB
Alternate Channel Selectivity 67dB2 50dB
AM Rejection 59dB245dB
Signal to Noise Ratio

Mono 82dB 2 75dB

Stereo 75dB2 70dB
Total Harmonic Distortion

Mono 0.08% 30.3%

Stereo 0.08% s 0.4%
Stereo Separation at 1kHz 49dB 2 40dB
0 AM SECTION

Tuning Range
Usable Sensitivity

515~1,680kHz

External Antenna 11W 5 ZOuV

Loop Antenna 240uV/m
Selectivity 41dB 2 35dB
Signal to Noise Ratio 54dB248dB
Image Rejection 41dB235dB
IF Rejection 70dB 2 SOdB
. AUDIO SECTION
Usable Sensitivity

Video/CD 135mV:I:25rnV

Phono 2.2mV $0.3mV

Nominal Limit
Signal to Noise Ratio
Video/CD 84dB 2 78dB
Phono BOdB 2 72dB
Channel Separation at 10kHz
Video/CD SZdB 2 45dB
Phono 57:13 2 45dB
IM Distortion Ratio 0.1% 50.2%
RMS Output Power 35W 2 30W
8&1, 1kHz, THD 0.09%
Damping Factor at 1kHz 70260
Tone Control Characteristics
Bass at 50Hz
Boost 10dB 2 2dB
Cut - 10dB :t: ZdB
Treble at 10kHz
Boost 10dB i 2dB
Cut - 10dB a: 2dB
Loudness Control
at 10kHz 3dBi1dB
at 50Hz 10dB :ZdB
DC Output Voltage
L channel OmV i GOmV
R channel OmViGOmV

RIAA Equalization at Tape Out (20Hz/20kHzl
1.2dB 13% dB/0.3dB : 3 dB

0 DIMENSIONS (W x H x D)

. WEIGHT
0 POWER SUPPLY
0 POWER CONSUMPTION

17-1/2 X 44/16 x 14-1/2"
(443 X 103 x 368 mm)

131bs. 14oz. (6.3kg)
AC120V, SOHZ
165W

This specification is the target of servicing. But, there is a case that tl
specification is not applicable to the measurement condition and instrumen

Specifications and components subject to change without notice. Oven
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 devices
such as nonmetallic control knobs,
insulating fishpapers, cabinet backs.
adjustment and compartment cover
or shields, isolation resistor-capacity
networks, mechanical insulators,
etc. which were removed for servic-
ing are properly reinstalled.

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 power cord directly into a 1207volt AC
receptacle (do not use an Isolation Transformer for
this testl. 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 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

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

SIMPSON MODEL 229 ETC. F
LEAKAGE TEST

HIGH
VOLTAGE

LEAD
OR +LEAD

GROUND

TO AC GROUND SUCH
AS WATER PIPE, BX CABLI
CONDUIT, ETC.

VTVM
-0 Ac SCALE

1.5kn
10W

__l|_

0.15uF

TEST PROBE

T0 EXPOSED

METAL PARTS

CON N ECT TO KNOWN

EARTH GROUND

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 befoi

returning the unit to the owner.

Harman kardon hk 385 i service manual

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