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1、 harman/kardon Service Bulletin Service bulletin # 9706 November 1997 Warranty labor rate: MINOR repair To: All harman/kardon Service Centers Models: AVR 10/20/25/3250; AVI 100/150/200 Subject: Remote Control has stopped working In the event you receive a complaint about a remote control that has st
2、opped working, perform the following tests: 1) Remove the batteries and confirm they are not weak or defective (battery voltage should be 1.4 volts or more). Replace batteries if necessary; both batteries in remote control should be replaced. 2) Point the remote towards the corresponding receiver/am
3、plifier and confirm the remote control functions operate as intended. 3) If Remote Control still doesnt work: Remove batteries, and with an alligator clip lead or other jumper wire, short the positive and negative tabs inside the control together. (See drawing) This short will drain any remaining ch
4、arge from the capacitors in the remote control and re-set the microprocessor. 4) Re-insert batteries and test the functions as per item (2) above. NOTE: This procedure may also work for other h/k model remote controls not listed above. harman/kardon Incorporated 250 Crossways Park Drive, Woodbury Ne
5、w York 11797 (516) 496-3400 RadioFans.CN harman/kardon Service Bulletin Service bulletin # 9502 - February 1995Warranty labor rate: MAJOR repair To: All harman/kardon Service Centers Models:AVR-20/AVI-150 Surround receiver/amplifier Subject: Low impedance protect circuit, intermittend shut down. The
6、 power rating for the AVR-20 and AVI-150 is 60 Watts into 8 Ohms. The AVR-20 and AVI-150 protection circuits will not activate until the loudspeaker impedance drops below 4 Ohms. During transients in certain CD program material, the instantaneous impedance of some loudspeakers with impedance ratings
7、 of “8 Ohms” can drop well below 4 Ohms. As result, the low impedance protection circuit will be activated. In the event you receive from a consumer one of these products with the complaint “unit shuts down intermittendly” change the components indicated in the table below. After the change, confirm
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