Author Topic: Harman Kardon AVR 235 receiver repair  (Read 804 times)

0 Members and 1 Guest are viewing this topic.

Offline feedback.loop

  • Regular Contributor
  • *
  • Posts: 130
  • Country: us
Harman Kardon AVR 235 receiver repair
« on: December 24, 2017, 12:20:18 am »
This Harman Kardon AVR 235 receiver had no output. The problem was traced to a shorted ceramic capacitor in the power supply, which resulted in two blown fusible resistors. The process of investigation might be of interest to you.

https://youtu.be/JS9_3qPIn6Y

Service manual: http://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Harman-Kardon-AVR-235-Service-Manual.pdf
 
The following users thanked this post: 1design, karyuudo

Offline karyuudo

  • Newbie
  • Posts: 1
  • Country: ca
Re: Harman Kardon AVR 235 receiver repair
« Reply #1 on: March 09, 2019, 11:57:09 pm »
Appreciate the video.  This helped me repair my AVR 354 today.  I believe these units all have the same faulty issue.  In my case, replacing the 2 fuses F110, F111 (2.5A/250V) with 3.15A/250V fixed the issue - even though visibly there appeared nothing wrong with them. 
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf