Harmon Kardon 330B repair - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 20th December 2006, 01:28 PM   #1
diyAudio Member
 
Join Date: Dec 2006
Default Harmon Kardon 330B repair

Hi, I just joined this forum because it seems nice and a bunch of people seem to know a bit about my receiver. Anyways it's a Harmon Kardon 330B (mom got it as a graduation present from college), which is now my receiver for my bedroom stereo. It's replacing my Akai receiver from the mid 80s (left channel died on it), but it itself is not completely perfect.

First of all, the receiver makes some loud popping noises when I flip between monitor and source if it has just been turned on. Just wondering if this is normal for this kind of amp.

Secondly, which is purely cosmetic, the lamps behind the indicators for what source you have selected appear to have burned out, because only the AM lamp turns on when I'm selecting a source.


But yeah, I've decided to use this receiver for a long time, as I can't really afford a nice 2-channel receiver, and this receiver is plenty loud. I'm good at soldering, so if people tell me what to do, I can probably do it. I already saw the thread that contained the service manual, so I already downloaded that. Other than those issues, the receiver is perfect. The glass hasn't scratched on the front, and all the inputs work. FM and AM reception is good enough that I might not need to install my dipole unless I wanna pick up stuff in Boston.
  Reply With Quote
Old 20th December 2006, 08:05 PM   #2
diyAudio Member
 
Join Date: Dec 2006
Never mind. I popped the cover, and the indicators are soldered onto a board that's bolted to the front... So I guess I'm stuck with only the AM indicator and a couple of lights that flicker behind my frequency indicator.
  Reply With Quote
Old 21st December 2006, 02:37 AM   #3
diyAudio Member
 
XEAGLEKEEPER's Avatar
 
Join Date: Jan 2006
Location: central Iowa
Quote:
the receiver makes some loud popping noises when I flip between monitor and source if it has just been turned on.
Sounds like some dirty selector switches.Deox-it.
Dave
__________________
Ret. USAF... AKA- Avionic *** Solder slinger for hire...***
  Reply With Quote
Old 1st April 2007, 09:44 AM   #4
diyAudio Member
 
Join Date: Jan 2007
Send a message via AIM to JasonLee Send a message via MSN to JasonLee Send a message via Yahoo to JasonLee
Those bulb behind the dial scale are know as fuse bulb. It looks like a 3/4" fuse. Not sure if it is available nowadays.
As for the poping sound, the most simplest way is open up the top cover. Locate the switch and spray with contact cleaner. But, by doing this you may temporary fix the prolems. Please check for leaking coupling capacitor. Usauly electrolitic cap 1uf 50v. Replace with the same value but try to get something like 63v or 100v.
  Reply With Quote
Old 1st April 2007, 09:58 AM   #5
diyAudio Member
 
east electronics's Avatar
 
Join Date: Jan 2006
Location: Athens GREECE
Default simular

i just did a jvc ...vintage as you call them .....what i did was just simply replaced all of the lamps ( normally suplied with about 6-12 volts ac ) with nice trendy blue leds ....


its a simple mod only thing you need is a diode a resistor and a cap to rectifie the ac and some skill to point the led where you really want to

as about the rest you say simply you need one apply of philips contact sprey to all potensiometers and ainside of all switches but dont forget that after the spray (doesnt requier a lot ) you have to rewash with degreaser spray to remove all the diesel oil included in the contact spray and can destroy the plastics of your pots and switches ....

have fun
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
humming Harman Kardon 330B wkjagt Solid State 20 19th March 2012 07:13 PM
Harmon Kardon argonrepublic Solid State 2 23rd June 2009 08:30 AM
harmon kardon T-40 jaudio Analogue Source 0 24th October 2007 12:37 PM
Harmon Kardon T40 jaudio Analogue Source 0 7th May 2005 01:04 PM
Harman-Kardon 330B schematic needed Algar_emi Solid State 15 12th March 2005 02:06 AM


New To Site? Need Help?

All times are GMT. The time now is 01:06 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2