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John, Engineer and electronic enthusiast for more than 12 years.
Category: Consumer Electronics
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I've had my Harman/Kardon 3390 receiver. Just now, the sound

Customer Question

I've had my Harman/Kardon 3390 receiver for years. Just now, the sound isn't be raised above 10 db. I tried everything and Im stumped.
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Louie replied 1 year ago.

Hi and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, how many speakers are connected please? And have you re-checked the speaker wiring?

Customer: replied 1 year ago.
of course.
Customer: replied 1 year ago.
I doubt that you can help. I checked the connections, settings, etc. The receiver works but the volume won't go past 10 db. Strangely, the volume will go down and up - but not past 10 db. I doubt you can come up with anything to earn your 18 bucks.
Expert:  Louie replied 1 year ago.

Going through the basics, have you considered/tried a RESET?
This is very critical - a reset however would not be corrective of an internal hardware concern; but it would be confirmed. In some instances, it may even expose other issues.

If so, are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?

Expert:  Louie replied 1 year ago.

Additionally, would you be able to make use of the schematic diagrams?