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harman kardon

  1. X

    Harman HK3500 audio cutting out

    I recently picked up a Harman Kardon HK3500 on CL listed as non-working. I was told it was playing music fine, then shut off with a little bit of smoke. I opened it up and found a blown fuse, a shorted output transistor and a resistor burned beyond recognition. Here's what I've done so far...
    • xslntx
    • Thread
    • harman harman kardon hk3500 kardon
    • Replies: 0
    • Forum: DIY
  2. rickl

    Citation 22 output transistors needed

    I'm trying to bring back a dead 22. I've narrowed down the problem to the outputs and drivers. I need: Q439 2SC3298A, NPN Q437 2SA1306A, PNP Q441,Q443 2sc3907, NPN Q449,Q451 2SA1516, PNP a search suggested 2SA1516 / 2SC3907 can be replaced with 2SA1962 / 2SC5242 for a big yamaha. Is this...
    • rickl
    • Thread
    • blown output transistors citation 22 harman kardon power amp
    • Replies: 5
    • Forum: Solid State
  3. J

    harman kardon 630 FM faint sound

    HI I've got a fully working HK630 aside from the fact that FM and FM stereo are so faint it can only be heard with volume 3/4 up. it picks up all the FM stations fine, fm stereo locks in andAM is working fine too. so far, the info i got from AK threads : the FM multiplex chip could have gone...
    • Jpkwd
    • Thread
    • harman kardon hk 630 fm
    • Replies: 58
    • Forum: Solid State
  4. toroechado

    Will my amps drive the legendary Kappa 9's?

    Hi! I have the opportunity to buy locally a pair of Kappa 9's in apparently good shape, but will my pair of Harman Kardon HK775 monoblocks drive them? The original owner uses a Mcintosh MC2002 with good results. For those who don't know these amps, are rated at 130 W into 8 ohms and 260 into 4...
    • toroechado
    • Thread
    • drive speakers harman kardon high current hk 775 kappa 9 power needed
    • Replies: 6
    • Forum: Speakers
  5. Johnny_Law

    Harman Kardon 230A FM Board Curiosities

    So I decided to save this 230A. It got a complete re-cap (pending a larger main power supply cap, ordered the wrong size) and new bulbs and a bath. It sounds (mostly) fantastic. I'll post some pictures of the rebuild below. However, this wouldn't be as much fun without some mystery...
    • Johnny_Law
    • Thread
    • 230a board circuit fm meter harman kardon
    • Replies: 26
    • Forum: Solid State
  6. H e n r i

    a cheap receiver for my first setup

    Hi guys, music enthusiast & new here I'm looking for a first, nice sounding, low buck setup for my apartment. I think bookshelves speakers will be enough for the space. BEFORE EVERYTHING I know that it will not be a perfect setup, but I ain't got much cash and not everything is available nearby...
    • H e n r i
    • Thread
    • advice advice needed bookshelf speakers cheap cheap amplifier cheap speaker system denon harman kardon receiver receiver advice
    • Replies: 51
    • Forum: Solid State
  7. TheWolf82

    Help!!! Want to hook up Harman Kardon 330B to Sherwood Newcastle via pre out

    I really need help with this. Very newbie question but here it goes. I have a Harman Kardon 330B. I’d like to use it in conjunction with my Sherwood Newcastle R-771 by hooking them up via pre out ports. Can I do this? One may why ask why I want to do this. Good question since I don’t entirely...
  8. I

    harman kardon 330b switch question

    Hi guys sorry for noob question. Any idea what this switch for?
    • Insomia
    • Thread
    • 330b harman kardon harman kardon 330b
    • Replies: 3
    • Forum: Solid State
  9. Stink Bear

    HK tuner fm signal breaks

    I'm working on a Harman Kardon TU615 tuner.It started out as a power problem - no dial lights. I got that fixed but now when playing it breaks the fm signal very briefly, sometimes often, sometimes just once in a while. It seems to do it more when I first turn it on, and it seems to be worse on...
  10. kmp14

    I love my Harman Kardon Rabco ST-8, But....

    I really like the HK Rabcos. I think they are a really clever mechnical design. I like how the travel of the tonearm carriage is directly linked to the rotation of the platter, so they are alway in sync. Really smart. Here comes the but....After years of using my ST-8 on my secondary system...
    • kmp14
    • Thread
    • harman kardon rabco st-7 st-8
    • Replies: 32
    • Forum: Turntables
  11. lechlech

    HK A50K recap.

    Hello there folks I recently bought a Harman Kardon A50K and I would love to do a recap my self. I not rich and to send it to a profesional electric is gona cost a ton of money. Can somebody please help me? I need a list of caps to buy and some advice with which caps to replace. Perhaps some...
    • lechlech
    • Thread
    • harman kardon harman kardon a50k
    • Replies: 14
    • Forum: Tube Audio
  12. thr33p4c

    Harman Kardon Citation I - To Mod or Not To Mod?

    Fate has blessed me with two Harmon Kardon Citation I tube preamps. One was beautifully built but also "well loved." The other was drastically modified over the years and is missing a lot of original parts. The "well loved" unit had a pretty messed up face plate, broken balance pot...
    • thr33p4c
    • Thread
    • citation citation i harman kardon led modification mods tube tube preamp
    • Replies: 21
    • Forum: Tube Audio
  13. davstev

    Harman Kardon 930: Distortion

    Hi All, I am presently tinkering with a H/K 930 that has been awaiting attention, and it's sounding...not great. Deoxit has been thoroughly done, it's definitely not that. When I run a CD player into the AUX 1 or 2, I get major distortion, equal in both channels. Same in Radio mode. This is...
    • davstev
    • Thread
    • 930 distortion h/k harman kardon
    • Replies: 5
    • Forum: Solid State
  14. @udi0$lave

    Looking for parts - HK630

    I'm looking for a power button and the large tuner pulley for an HK630. Not much showing up online. Any recommendations?
  15. JPJ

    harman kardon 730 restoration specialist?

    does anyone know if there is a place/person that specializes in restoring these? i have one that works but could use some love. would love to get it to as close to mint as possible, or would trade it out for something that has been restored. saw one recently on bartertown with an updated...
    • JPJ
    • Thread
    • harman kardon hk 730 receiver restoration
    • Replies: 13
    • Forum: Solid State
  16. Johnny_Law

    Odd Problem H/K 330B: Left Channel VERY Weak SOLVED

    Eventual solution: Bad solder job on one replacement transistor! Problem: Weak (barely audible) left channel. Constant regardless of input source Also weak channel through headphones Work already completed: Rebuild of Control Amp and Main Amp circuit boards De-oxit of all pots and switches...
    • Johnny_Law
    • Thread
    • 330b channel diagnose harman kardon rebuild
    • Replies: 40
    • Forum: Solid State
  17. SuperjazzyJa

    Question and Answer Chaining

    Here's an idea. A poster asks a question. The next poster answers the question and then asks a related question and the next poster answers that question and asks another related question. Example: Poster A: Are you wearing holey socks? Poster B: No (or "yes" as the case may be) Would you...
    • SuperjazzyJa
    • Thread
    • bobsvinyl christian_b harman kardon likevinyl noogies shominy
    • Replies: 71
    • Forum: Gaming
  18. Wesley14

    Sacrifice quality for vintage aesthetic?

    I have a Harman Kardon HK385i and it has pretty good specs from what I can tell, total harmonic distortion %.09 and SNR 80dB. I love the way it sounds, but I have always wanted a receiver that looks like the vintage type (vu meters, silver face, switches, wood grain, etc). Would I have to...
    • Wesley14
    • Thread
    • harman kardon hi fi receiver silver face vintage
    • Replies: 2
    • Forum: Solid State
  19. D

    SX-780 back from the dead!

    In high school I bought a new at the time Pioneer SX-780 receiver with turntable, speakers and cassette tape deck. Halfway through college the receiver began to act up, worked intermittently for a couple years, then quit altogether. After college I bought a Harman Kardon 495i (I'd wanted an...
  20. U

    Harman Kardon 930 Short out - need help!

    Just got a HK930 that has a short circuit problem somewhere. The main power fuse keeps blown out. I tested it with a light bulb current limiter and confirmed that. Can someone help where should I start to diagnose the problem?
  21. Spinifex

    Harman Kardon PM650 Broken/Dodgy Balance Control

    The Balance on my Harman Kardon PM650 doesn't work. Mono works through both speakers. Stereo only works through Left channel. Reverse setting on the dial works but swaps it to the Right Channel, with Left (which should be swapped to Right, still not working. No sound.) Stereo doesn't...
    • Spinifex
    • Thread
    • balance control harman kardon mono pm650
    • Replies: 2
    • Forum: Solid State
  22. Reaper2122

    How much did I overpay?

    Recently bought a Harman Kardon ST-8 on eBay for 595$. Description explains it was recently serviced and "dialed in". Original feet replaced with Sorbathane feet. Comes with 3 cartridges Grado GF3, Grado ZF3, Signet Audio Technica 1EA. Also no cartridge alignment tool or carriage cover. From...
  23. JPJ

    fell into a crazy tube system but can't keep everything, looking for advice on best way to upgrade

    Kind of a long story and wasn't sure where to post. I'm new to posting on the forum (have used it as a resource plenty) and have always used a low budget setup at home. I've had and really enjoyed an HK 730 paired with kef Carlton iii's. Audio is either coming from my technics 1200 mkII or...
    • JPJ
    • Thread
    • harman kardon hk730 kef mcintosh technics 1200 tubes upgrade
    • Replies: 7
    • Forum: Members' Systems
  24. kapohoguy

    Harman Kardon ST-8 Value?

    I just restored this Harman Kardon ST-8 linear track turntable for a friend. I'd never seen one before but got it going with help form threads found here and service manual from Vinyl Engine. Once it was all set up and running I was impressed. The quality reminded me of the first time I had an...
  25. M

    Tuner on Harman Kardon HK430 silent

    Hello, I am looking for some technical help from a good soul. I posted this thread a few months ago but no visitor seemed to have enough knowledge of tuner electronics; therefore this new attempt. FM reception on my HK 430 receiver stopped working after a couple months of perfectly fine...
    • mqtthiqs
    • Thread
    • harman harman kardon harman kardon 430 hk hk 430 troubleshoot troubleshooting tuner
    • Replies: 10
    • Forum: Tuners
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