HarmanKardon-Signature2_0-avr-sb3电路图 维修手册.pdf

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1、harman/kardon Service Bulletin Service bulletin # H/K9709 Dec. 1997 To:All harman/kardon Service Centers Models: Signature 2.0 Processor/Tuner Subject: Turn on/ turn off “ thump” In the event you receive a Signature 2.0 that is being used with a power amplifier other than the Signature 2.1 which exh

2、ibits a “thump” when the unit is turned ON or OFF: When a power amplifier other than the Signature Series 2.1 is used with the Signature Series 2.0 Processor/Tuner, you may experience a mild turn-on or turn-off “ thump” . The Signature 2.1 power amplifier has a delay circuit that prevents this from

3、happening. There was a running change made by the factory that will prevent this symptom using any power amplifier. The change was made starting with the serial numbers listed below: ModelSerial number 120V Serial number 230V StatusAction Signature 2.0GT0003-01001 to GT0003-02162 GT0006-01001 to GT0

4、006-01157 Mild turn-on or turn-off “ thump” when not using 2.1 Call for factory replacement of unit under warranty Signature 2.0GT0003-02163 and above GT0006-01158 and above Factory Installed Modification NONE REQUIRED To replace a unit under these conditions, please contact harman/kardon to obtain a unit for exchange in the latest serial number range listed above. harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400 RadioFans.CN 收音机爱 好者资料库