Name: Harman Kardon AVR 10
Brand: Harman Kardon
Rating: 5 (1 reviews)

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harman/kardon Service Bulletin

Service bulletin # 9601 -January 1996 Warranty labor rate: MINOR repair

To: All harman/kardon Service Centers

Models:AVR-20/AVR-20II Surround receiver/amplifier

AVR-25/AVR-25II

Subject: Poor or intermittent reception of FM

_____________________________________________________________________________________

In the event you receive a unit from a consumer with a complaint “FM cuts out intermittently” use the

procedure listed below in addition to the procedure listed in the service manual for FM alignment.

To supplement the manual, for FM center tuning alignment follow these procedures;

AVR20/AVR20II

Alignment Equipment

settings

Adjust Adjust

For

Quadrature Tune to a known strong FM

station around center of the

band (98.1MHz)

T803 0 VDC across R809, confirm by tuning to

another strong station.

Repeat step 1 in service manual for minimum distortion. Repeat both steps again for optimum sensitivity.

*note: step #4 in AM IF states adjustment point VR802, should be VR801

step #2 in FM IF states adjustment point VR801, should be VR802

AVR25/AVR25II

Alignment Equipment

settings

Adjust Adjust

For

Quadrature Tune to a known strong FM

station around center of the

band (98.1MHz)

T903 0 VDC across R914, confirm by tuning to

another strong station.

Repeat step 1 in service manual for minimum distortion. Repeat both steps again for optimum sensitivity.

harman/kardon Incorporated, 80 Crossways Park West, Woodbury, New York 11797 (516) 496 3400

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Power

continuous average power stereo mode	35 Watts from 20Hz-20kHz @ <0.09% THD, both channels driven into 8 Ohms
continuous average power five channel surround mode front L&R channels	30 Watts from 20Hz-20kHz @ <0.3% THD, both channels driven into 8 Ohms
continuous average power five channel surround mode center channel	30 Watts at 1kHz @ <0.3% THD, driven into 8 Ohms

Amplifier Section