HK 3370 (serv.man16) - Harman Kardon Audio User Guide / Operation Manual. Page 15

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15 TROUBLESHOOTING GUIDE
Troubleshooting Guide
This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. So, if you have a problem, first
check this list for a possible solution. If the problem persists, consult your authorized Harman Kardon Service Center.
If the problem is...
Make sure that the...
No lights illuminate when POWER button is pressed
Unit is plugged into a live outlet
Main power switch is pressed in
No sound is heard
Unit has not been muted
Correct input function selector button has been pressed
Volume is turned up
The speakers have been turned on using the Speaker Selectors
No output from one or more channels
Cables are not defective: check/replace speaker cables
Tuner sound has a large amount of interference, or
The antenna is properly connected
The “Stereo” display is not illuminated, or
The antenna is properly located
Tuner sound distorts and/or volume level is too low
The antenna is set in the proper direction
The antenna is adequate to receive the desired station
Tuner is intermittent or continuously buzzing or hissing
The unit is away from fluorescent lights, TVs, motors and 
other electrical appliances
Technical Specifications
Audio Section
Stereo Mode 
Continuous Average Power (FTC)
70 Watts per channel, 20Hz–20kHz
@ < 0.07% THD, both channels driven into 8 ohms
95 Watts per channel, 20Hz–20kHz
@ < 0.2% THD, both channels driven into 4 ohms
Input Sensitivity/Impedance
Linear (High Level)
200mV/47kohms
Signal-to-Noise Ratio (IHF-A)
95dB
Frequency Response 
@ 1W (+0dB, –3dB)
10Hz–110kHz
High Instantaneous 
Current Capability (HCC)
±42 Amps
Transient Intermodulation 
Distortion (TIM)
Unmeasurable
Rise Time
16 µsec
Slew Rate
40V/µsec
FM Tuner Section
Frequency Range
87.5–108MHz
Usable Sensitivity
IHF 1.12 µV/13.5dBf
Signal-to-Noise Ratio
Mono/Stereo 73/72dB
Distortion
Mono/Stereo 0.3/0.4%
Stereo Separation
40dB @ 1kHz
Selectivity
±400kHz, 65dB
Image Rejection
>80dB
IF Rejection
>100dB
Tuner Output Level
1kHz, ±100kHz Dev 500mV
AM Tuner Section
Frequency Range
520–1710kHz
Signal-to-Noise Ratio
>40dB
Usable Sensitivity
Loop 500µV/M
Distortion
1kHz, 50% Mod 0.8%
Selectivity
±10kHz, >25dB
General
Power Requirement
AC 120V/60Hz
Power Consumption
72W idle, 332W maximum 
(both channels driven)
Dimension (Max)
Width
17.4 inches (442mm)
Height
6.1 inches (156mm)
Depth
16.3 inches (415mm)
Weight
24.6 lb (11.2kg)
Depth measurement includes knobs, buttons and terminal connections.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.
Harman Kardon is a registered trademark, and Power for the digital 
revolution is a trademark, of Harman Kardon, Inc.
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