Harman kardon citation 24 service manual

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The Harman Kardon
Model Citation24
STEREO POWER AMPLIFIER

Manual 118A

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

1» : North America area model
0 : Geneial model
0 : Japan model

harman/kardon

240 Crossways Park Wes&.Woodbury,N.Y,1l'/97
l I I2 Slam 8A7 P1088709 1500 P'milzd m Japan

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SPECIFICATIONS
Nominal Limit Nominal Limit
Input Sensitivity 1.0V:O.15V Power Bandwidth 1OHz~100kHz
Input Impedance at 1kHz 22kg: 2km /2 rated power)
Frequency Response 0.07HZ~490KHZ IM Distortion Ratio at 1W 0.032%S0.0B
Signal to Noise Ratio 101.4d8295dB Damping Factor at (HZ 90365
Channel Separation at 10kHz 90.8de75dB DC Ba'ance OmViBOmV
Total Harmonic Distortion Idling Current 32mVi 3mV
20Hz 0.012%50080/0 Dimensions (WxHxDi l7-3/8x6-1/8"x15-11/16"
1kHz 0.009%50.08% (443X155X398mml
ZOkHz 0.014%so.089% Weight 33 )5 (15kg)
RMS Output Power Power SUW'V
89, (sz THD 0.08%lch, 111W2100W North America area model AC 120V, GOHZ
49' 1kHZ, THD 0.08%(Ch 114W2100W General model AC 220V/240V, 50/60HZ
Japan model AC 100V, 50/60Hz
Power Consumption 610W

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.

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

' SIMPSON MODEL 229 ETC. FOR
that leads are not pinched or that LEAKAGE TEST

hardware is not lodged between

the chassis and other metal parts

in the unit. TO EACH EXPOSED

. . METAL SURFACE OF

2. Be sure that any protective devices UNIT uNDER TEST HIGH

such as nonmetallic control knobs, VOLTAGE

insulating fishpapers, cabinet backs, OH + LEAD

adjustment and compartment covers

or shields, isolation resistorrcapacity 6

networks, mechanical insulators,

etc. which were removed for servic-

. . VTVM

ing are properly reinstalled. AC SCALEO_
3. Be sure that no shock hazard exists; check for leakage

current using Simpson Model 229 Leakage Tester, 1 5km

standard equipment item No. 21641, RCA Model tow

WT54OA or use alternate method as follows: MAI

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 piF capacitor, -l '-

in series with all exposed metal cabinet parts and 0.15

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 TEST PROBE

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 AC GROUND SUCH
AS WATER PIPEBX CABLE
CONDUlT, ETC.

GROUND
LEAD

T0 EXPOSED CONNECT TO KNOWN
METAL PARTS EARTH GROUND