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short circuit

  1. James Welsh

    Sony TA-1150 short circuit tracing

    How do I figure out where the short is? I’ve been working on the output board of a SONY TA-1150. I replaced: - all the transistors - capacitors - main filter caps - bias trim pots - Emitter resistors - Bridge rectifier - fuse holders I was trying to set the bias using the Variac I had...
  2. L

    Harman Kardon Citation 22, left-channel main driver board short

    hey all, i’ve got a short in the left channel of my Harman Kardon Citation 22. I’ve already swapped every cap for fresh ones, decoupled all the peripheral boards, and narrowed it down to the left-channel main driver board. i’m reading about 160 kΩ between the + and – leads on the big filter...
    • Londrius
    • Thread
    • harman kardon citation 22 short circuit short issue
    • Replies: 0
    • Forum: Solid State
  3. kasbah512

    2245: -35v DC at output

    So after resolving some other issues, I'm now seeing -35V at J756. Here's the components I've tested so far and they all are functioning correctly: H002, H751, H752, H753, H755, H757, H759, H760, H761, H767 I'm not really sure where else to look, or if i should even bother checking the + side. I...
  4. kidsreturn

    [HELP!] AC Voltage leakage in TEAC A3340 Tape deck

    Hi everyone, hope you are doing well. I have recently bought a TEAC A3340 tape deck (ungrounded), and noticed that when I was connecting the GND electrode at the back of the chassis to earth, I got an instant power outage. When I am probing the chassis with my digital voltmeter while the unit...
  5. hitjazz

    Sabotage of KA-7100?

    With the help of a friend, I am beginning a project to revive my KA-7100 diagnosed with a protection circuit issue. As we move forward, I may look to this forum for advice. However, for now, we are stymied at the outset by what appears to be a short. Background: I checked all 4 fuses before...
  6. G-901

    G-9000 R33 on Driver Board keeps burning up

    Was testing receiver with Dim bulb tester and keep burning up R33 on the F-2806 driver board. Any suggestions. I was going to start by testing TR 9 and TR 7
    • G-901
    • Thread
    • driver board f-2806 g-9000 g-901 resistor short circuit
    • Replies: 1
    • Forum: Exclusively Sansui
  7. davy rocksta

    interesting behavior while repairing and servicing a Kenwood KM-105

    i know, i know is a very simple amplifier that might not worth the time to fix... it's ok i'm learning a lot with this one here is the schematic https://elektrotanya.com/kenwood_km105_schematic.pdf/download.html#dl ok so this unit had the output transistors shorted in just one channel, the...
  8. D

    Troubleshooting Silvertone 1335 / Danelectro Challenger

    So I have this Silvertone 1335 amp that I've been working on, I completely recapped it and changed out most of the resistors as well, removed the death cap and changed to a 3-prong power cord. It had been sitting for years before I got it, so I hadn't even tried turning it on before I did all...
    • dirtgeek
    • Thread
    • danelectro short circuit silvertone 1335 troubleshooting
    • Replies: 6
    • Forum: Tube Audio
  9. ClickyButton

    Cartridge wiring continuity/troubleshooting

    Hello! I'm new to audiokarma, so I apologize if this is in the wrong section. I wasn't sure if I should post it here or on DIY, so I guessed. Admin, please feel free to move it if I messed up. I am restoring a Sony linear tracking turntable I picked up for cheap. The platter and linear tracking...
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