Harman Kardon HK690 - Specifications

SPECIFICATIONS
@ FM SECTION Nominal Limit
Tuning Range 87.5 ~ 108.0MHz
50dB Quieting Sensitivity
Mono 16.6dBf < 18dBF
Stereo 38.5dBf S 40dBF
Usable Sensitivity 11.5dBf < 14.5dBF
Image Ratio 774B = 70dB
IF Rejection 95dB 2 85dB
Spurious Response Rejection 114dB = 95dB
Capture Ratio 1.0dB < 2.0dB
Alternate Channel Selectivity 63dB 2 50dB
AM Rejection 56dB = 45dB
Signal to Noise Ratio
Mono 82dB 2 78dB
Stereo 73dB 2 70dB
Total Harmonic Distortion (65dBf 1kHz Input)
Mono 0.06% $ 0.15
Stereo 0.08% < 0.3%
Stereo Separation at 1kHz 58dB > 45dB
© AM SECTION
Tuning Range 520 ~ 1,710kHz
Usable Sensitivity 14yV < 20uV
Selectivity 53dB > 35dB
Signal to Noise Ratio 55dB > 50dB
Image Rejection 44dB > 38dB
IF Rejection 60dB = 50dB
AUDIO SECTION
Usable Sensitivity
AUX/DAD 135mV + 25mV
Phono MM 2.2mV + 0.2mV
Mc 120nV + 15uV
Signal to Noise Ratio
AUX/DAD 79.5dB 2 78dB
Phono MM 79dB 2 77dB
MC 774B 2 74dB
LEAKAGE TEST
Nominal — Limit
Channel Separation at 10kHz
AUX/DAD 54dB > 45dB
Phono MM 54dB > 4548
Mc 58dB > 450B
IM Distortion Ratio 0.05% S 0.1%
RMS Output Power
8Q, 1kHz, THD 0.08% 6aw > Gow
49, 1kHz, THD 0.08% 102w > 90w
Damping Factor at 1kHz 67250
Tone Control Characteristics
Bass Turnover Frequency 400Hz/200Hz
Treble Turnover Frequency 2kHz/6kHz
Bass at 50Hz
Boost 10dB + 2dB
Cut —10dB + 2B
Treble at 10kHz
Boost 10dB + 2dB
Cut —10dB + 2B
Loudness Control
at 10kHz 3dB + 1dB
at 50Hz 10dB + 2dB
Subsonic Control
at 15Hz 3dB + 1dB
DC Output Voltage
L channel OmV + 60mV
R channel Omv + 60mV
RIAA Equalization at Tape Out (20H2/20kHz)
0.2dB + 0.5dB/0.1dB + 0.5dB
@ DIMENTIONS (W x H x D) 17-7/16” x 5-1/4” x 14-3/8"
(443 x 135 x 365 mm)
24 Ibs. 4 oz. (11 kg)
@ POWER SUPPLY AC120V, 60Hz
@ POWER CONSUMPTION 400W (440VA)
This specification is the target of servicing. But, there is a case
that the specification is not applicable to the measurement
condition and instrument.
Specifications and components subject to change without notice.
Overall performance will be maintained or improved.
@ WEIGHT
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 hard-
ware is not lodged between the chassis
and other metal parts in the unit.
2. Be sure that any protective devices such
as nonmetallic contro! knobs, insulating
fishpapers, cabinet backs, adjustment
and compartment covers or shields,
isolation resistor-capacity networks, me-
chanical insulators, etc. which were
removed for servicing 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 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 0.15mf 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
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,
TO EACH EXPOSED
TO AC GROUND SUCH
METAL SURFACE OF AS WATER OR BX CABLE
HIGH GROUND conouir, ETc.
VOLTAGE LEAD
UNIT UNDER TEST
SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST
OR +LEAD
OAC SCALEO
15K OHM
10W
|
0.15 MF
TEST PROBE
TO EXPOSED
METAL PARTS
CONNECT TO KNOWN
EARTH GROUND
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