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330b

  1. puma1824

    Harman Kardon 330B (B-2) Restoration Thread - Information & Questions

    I'm in the process of recapping my 330B (B-2) and found that the schematic is wrong for some of the transistors. As a result I'm trying to determine what I can replace the transistor that has the labeling C1384 R 4B on it. I had planned on replacing the 2SC538A (C1509 R 3H) with a recommended...
    • puma1824
    • Thread
    • 330a 330b 330b b2 harman kardon 330a harman kardon 330b
    • Replies: 22
    • Forum: Solid State
  2. djfake

    Harman Kardon 330B - in the shop

    Hi - I'm having a reputable dealer take a look at my Harmon Kardon 330B (Serial #52251A). After spending the past decade or so not being used, I plan on using it in our living room, with a pair of EPI 100s that I recently restored. I'm having the shop check it out, clean dirty pots, check dc...
  3. JB8

    HARMAN KARDON 330B - Roached Resistors, No Output!

    Here's what I know: Unit powers up, no sound, no output at all across all functions, no voltage at speaker terminals Inserted outside source into main amp in's, no sound Pulled the bottom cover to check some voltages, was getting roughly 54V DC at the test lug (B5) at what I'm assuming is tied...
    • JB8
    • Thread
    • 330b harman kardon harman kardon 330b resistor values resistor wattage
    • Replies: 5
    • Forum: Solid State
  4. OskarBas1

    Need help with Harman/kardon 330B recap/rebuild

    Ok so I'm going to do a recap/rebuild of my Harman Kardon 330B. I'm not that familiar with doing things like this so I'll need som help. I'm think I'm gonna order the full parts list that dlucy provided in the thread linked below...
    • OskarBas1
    • Thread
    • 330b harman kardon 330b noob first system noob in need of help recap and restoration
    • Replies: 19
    • Forum: Solid State
  5. dlucy

    dlucy's guide to Harman Kardon minimalist series 230A, 330, 330A, 330B B-1, 330B B-2, and 330C

    The third era of solid state stereo receivers from Harman Kardon centered around the 330A and 330B and the clones made by Roland and Soundcraftman: This thread is a guide to those models, their specs, and pointers to schematics and restoration threads for each. If you have additional...
    • dlucy
    • Thread
    • 330a 330b 330c harman kardon harman kardon 330a harman kardon 330b harman kardon 330c hk
    • Replies: 50
    • Forum: Solid State
  6. 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
  7. 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
  8. redpackman

    Harman Kardon 330b - Left channel is there but much weaker than right

    OK. I'm working on a nice HK 330b. The left channel is very weak. The only way I can get the channels to "balance" is to turn the right channel down about 85% with the balance knob. The sound is not distorted, just very, very weak. That's not good. Here's what I've done so far: cleaned all...
    • redpackman
    • Thread
    • 330b harman kardon weak channel
    • Replies: 18
    • Forum: DIY
  9. dlucy

    Recap and restore Harman Kardon HK 330B (recap BOM under development)

    Note: don't use the below recap list yet as it is under development, not finalized. I have two HK 330B stereo receivers, the "Roland" model, that I'm planning to recap and restore. Here are the components I'm planning to replace along with the parts from Mouser. Your comments and corrections...
    • dlucy
    • Thread
    • 330b harman kardon harman kardon 330b hk recap
    • Replies: 41
    • Forum: Solid State
  10. J

    Harman Kardon 330B speaker output issues

    Hello Everyone, tons of good info on this forum so I figured one of you audio wizards could help me out. I am having an issue with my HK 330B and love the sound so I want to resuscitate it if at all possible. Recently the left channel speaker became very scratchy and popping. This can be...
  11. S

    Help required Haman Kardon 330b AMP/Receiver

    Hello, can anyone point me in the right direction? Im having a problem with the right channel on my HK330B amp. It was intermittent problem (no output via the RH Speaker) but now i am not getting any output at all from the Amp for the right speaker as the right speaker fuse has blown. At one...
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