Harman kardon hk 3350 service manual

Page 2

HK3350

SPECIFICATIONS
Nominal Limit
.FM SECTION
Tuning Range 87.5MH2 - 108.0MHZ
50dB Ouieting Sensitivity
Mono 14,2dBf s 19.0dBf GD
24.5dBf g 27.0dBf
Stereo 37.2dBf s 41.0dBf
47.0dBf s 50.0dBf
Usable Sensitivity 12.0dBf é 15.0dBf
14.0dBf s 17.0dBf 13
Image Ratio 85.0dB g 40tOdB
IF Rejection 105.0dB 2 80.0dB
Spurious Response Rejection 110.0dEl
Capture Ratio (at 45dBf) 1.5dB S 2.0dB
Alternate Channel Selectivity 77.0dB 2 60.0dB
l+400kHz.400kHz 45dBf input)
AM Rejection (at 45 dB?) 60.0113 g 45.0dB
Signal to Noise Ratio (at 65dBf)
Mono 80.0dB e 76.0dB
73.5dB g 70,0dB
Stereo 70.5dB g 63.0dEl
64.5dB ; 62.0df3®
Total Harmonic Distortion
(65dBf 1kHz input)
Mono 0.05% s 0.3%
Stereo 01% s 0.4%
Stereo Separation (at 1kHz) 48.5dB g 42.0dB GD
47.0dB ; 35.0d813
0AM SEOT ION
Tuning Range 530kHz - 171%sz
531kHz - 1602kHz®
Usable Sensitivity «300me S 70!)me
Selectivity (+10kH2, -10kHz) 35.0dB 2 25.0dB
Signal to Noise Ratio 52.0dB ; 47.0dB
Image Rejection 39,0dB ; 30.0dB
IF Rejection 63.0dB g 50.0dB

Nominal Limit
OAUDIO SECTION
Usable Sensitivity
Video/CD (at 30W output)
Signal to Noise Ratio

135.0mV :t 25mV/26kohm

Video/CD 84tOdB g 75t0dB
Frequency Response
(at -3dB down) 04H2-175kHz < 1Hz-2150kHz
Channel Separation (at 10kHzl
Video/CD 73.0dB : 45.0dB
IM Distortion Ratio (at 15W) 0.047% s 01%
RMS Output Power
89, 1kHz, THD 01% 33.0w ; 30W
49, 1kHz, THD (13% 55.0w ; 35W
High-instantaneous Current Capability
(HCC) 30.0A 3 20.0A
Damping Factor (at 1kHzl 44.0 g 30.0
Tone Control Characteristics
Bass at 50Hz
Boost 10dB 2: ZdB
Cut MB 1 ZdB
Treble (at tokHz)
Boost 10dB :i: ZdB
Cut 10:18 i ZdB
Loudness Control (at 50Hz) 10dB i ZdB
DC Output Voltage
L channel 34mV i GOmV
R channel 24mV i GOmV
Idling Current
L channel 32t4mV 32.4mVi5mV
R channel 32t4rnV 32.4mVi5mV
ODIMENSIONS 1743/8' x 4-1/8' x 138/4'
(WxHxD) (443x105x349mm)
OWEIGHT 15.8lbs./l7.2kgl

oPowen SUPPLY AC120V, 60Hz GD
Ac230V/24ov, 50/60Hz 9

225w (260VAI 3
new 13
These specifications are service target specs

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

.POWER CONSUMPTION

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 cer-
tain that leads are not pinched or
that hardware is not lodged be-
tween 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:
Plug the power 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 uF capacitor, in
series with all exposed metal cabinet pans 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-
tor 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.)

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST

TO AC GHOUND SUCH
AS WATER PIPEBX CABLE.
CONDUIT, ETC.

HIGH
VOLTAGE
OR +LEAO

GROUND
LEAD

é

VTVM
0 AC SCALEG

1.5km
low

M

0.15uF

TEST PROBE

CONNECT TO KNOWN
EARTH GROUND

TO EXPOSED
METAL PARTS

A reading of 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected

2 before returning the unit to the owner.