The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

  • Twitter Updates

  • My Flickr Stream

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,768 other followers

Basically, all Harman Kardon amplifiers (including subwoofers) show power supply issues after a few years

Posted by jpluimers on 2019/07/26

Experienced first hand myself, all my Harman Kardon amplifier equipment (including subwoofer) have shown power supply issues after about 2 years of use.

Signs are devices not powering up any more, giving only a limited amount of power (for instance a subwoofer only blinking the power led), or intermittent shutdown failure (more often when it is warmer than 22 degrees Celsius).

There are companies making a living of just these power repairs (for instance Audiocare.nl who git all my defective equipment to work again for about EUR 100 per device: [WayBack] Harman Kardon – AudioCare.nl).

This is how you remove the power supplies:

The biggest issues are failing capacitors, and glue becoming conductive.

Related blog posts:

Some videos below the fold.

–jeroen

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

 
%d bloggers like this: