Harman Kardon PM625 issues like crackling noise without touching it and 1 ch. cutting out

Comments · 33

• TE

  @terrym1065 · 9 months ago

  Nicely done Joe, another fix.  Figured on the caps🤨 and dirty switches are a given.  Great tutorial on the bias and the video was easy to follow.  Thanks for the video, happy holidays.

  1

• AU

  @AudiophileStooge · 9 months ago

  I really enjoy your tech videos.  They are informative and entertaining. I really appreciate your efforts!

• AR

  @arturopaladinesjimenez1198 · 5 months ago

  Very good Joe

• LZ

  @LZDEN · 9 months ago

  good work as always Joe, always good to view you at work my friend.

• DA

  @davidbailey6350 · 9 months ago

  Joe, good video. And happy holidays.

• WV

  @wv1vsu · 9 months ago

  ❤👍

• AS

  @AshtonChikotosa · 9 months ago

  Teacher thanks

• MI

  @mikecampbell5856 · 9 months ago (edited)

  Great work as usual Joe! I have a Harman Kardon PM 650 from 1983 with a similar form factor to yours and I have had to clean switches and pots a few times. Last year the left volume was really low. I tried Deoxit and it didn't work. I put it away and took the amp out a little while ago, a year later, and it works great. Time delay Deoxit F5? lol BTW Harman Kardons are very under rated. They have high current and ultra wide bandwidth design.

  2

• MD

  @mdzacharias · 9 months ago

  I like those Fluke grabbers! Bet they weren't cheap.

• FR

  @fredcailloux2526 · 9 months ago

  Thank you! This video gives me a few tips before I get out of &quot;Hibernation&quot; a HK PM635+TU911Tuner. They&apos;re pretty easy to work on but they sound a bit soft compared to 70&apos;s vintage! After 37 years a &quot;Recap&quot; is not a bad idea as long as you could find good substitutes and beef up a bit the two &quot;Big&quot; supply cap could be a game changer who knows! You still enjoy this Joe&apos;s, don&apos;t you? I guess like me you sure do. I subscribe and wish you plenty of fun. <br> Regards Gilles

• TH

  @tharkthax3960 · 9 months ago (edited)

  Great job! Really like the way you make your videos, very natural and easy to follow! I have a NAD C352 amp that I recapped and it was working beautifully. Until I decided to check idle current. Test pin is right next to speaker output and I shorted it to it. A blue spark now amp stays in protection mode. Getting rail voltages from power board so not sure if I blew a transistor.

• JO

  @joel1323-w3f · 9 months ago (edited)

  la musique est trop forte m Blanchard ! Bonjour de France !