Question about Harman Kardon AVR 240 Receiver

6 Answers

Won't turn on

My HK AVR 240 went through a period of time where it would just shut down while it was in full power mode. It did not go into standby mode and it did not shut off completely, nor did it go into protection mode. Now it will not power on at all. The light around the power switch is amber/green, but the reciever will not go into full power and I am not able to perform a reset.

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  • jupperman Dec 27, 2008

    The solution from "classyexpert" is interesting, but the provided link only shows brochures and owner's manuals.

    Can someone advise me on how to replace the fuse for this unit?

  • jupperman Dec 27, 2008

    PuerkoNess - thanks for the tip, but as I stated in my original post I am not able to do a reset. If I [ress and hold the power button...nothing happens and tha green/amber light stays on.

  • jupperman Dec 28, 2008

    I tried pressing the power button for a full two minutes and nothing happened.

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Hi and welcome to FixYa,

Initially, I doubt if the problem is a blown fuse. If it were so, the unit will not even have the "light around the power switch is amber/green". This then would indicate that power is coming into the HK unit, reaching until the power supply section and is processed/converted to at least provide the necessary voltage to illuminate the "amber/green light". What may be interesting to find out is if the power supply is fully switching on to supply the needed voltage of the other circuitry such as the logic controller, the sound processing, the pre-amp and the amp. What leads me to suspect that even the main logic circuitry is not functional is that you have indicated that "nor did it go into protection mode".

Be what ever case it may be, cold solder or faulty power supply, this of course would require opening the unit, perform voltage measurements, determine faulty component and subsequent part(s) replacement. Further, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron would be required. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings.Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional. If the cost of repairs and downtime would be factored in, then you may have to re-evaluate your options.

Good luck and Thank you for using FixYa. Happy New Year.

Posted on Jan 01, 2009

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I am not sure where you would find the fuse in your model but I have found a picture of what it should look like for you.

http://www.vfmaudio.com.au/images/200ampfuseholderhd.jpg

Posted on Jan 01, 2009

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Check speaker wire connections for shorts at receiver and speaker end

Posted on Jan 01, 2009

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Press power button for 10 seconds.
then remove battery from it.clean its both side.
alos remove dust from sots.then try with other battry or refix that battrty.

Posted on Jan 01, 2009

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You need to press and hold power button until the amber green light goes off and system is completely off, then press and hold power button for about 10 secs. untill system comes back on

Posted on Dec 23, 2008

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The fuse in the receiver would have blown off so this is happening as u shutoff it directly.just needs fuse replacement. and for further help just check out the manuals http://www.retrevo.com/support/Harman-Kardon-AVR-240-Receivers-manual/id/386bh035/t/2/
thanks.

Posted on Dec 23, 2008

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