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  1. roughshawd

    Harmon/Kardon AVR20II. No output

    On the test, with only the center channel speaker connected. I got test sound from both the center and the right tests.... All other channel tests were quiet. The test is automatic and cycles through the channels...testing each one.
  2. roughshawd

    Harmon/Kardon AVR20II. No output

    There was only 1 channel that were working. The center one.
  3. roughshawd

    Harmon/Kardon AVR20II. No output

    Does the left cap look a bit swollen?
  4. roughshawd

    Harmon/Kardon AVR20II. No output

    Was very quiet... Not good at all‍️
  5. roughshawd

    Harmon/Kardon AVR20II. No output

    I took it apart to reset the connectors, just in case it was a bad connection. Now I have no output anywhere!! So the VCR monitors (there are 2) inputs have continuity(200 ohms at 88.1 and ,88.2 respectively )between the pin and shield. And speaker output 2 (there are 2 stereo, 4 total, two...
  6. roughshawd

    Harmon/Kardon AVR20II. No output

    Nope.
  7. roughshawd

    Harmon/Kardon AVR20II. No output

    Cooked dikso... Swapping new cap... Let you know.... Wash me butt...
  8. roughshawd

    Harmon/Kardon AVR20II. No output

  9. roughshawd

    Harmon/Kardon AVR20II. No output

    That number, is in the manual...the number on the board is different... #4001002410D
  10. roughshawd

    Harmon/Kardon AVR20II. No output

    Jumper in... Also with jumper removed
  11. roughshawd

    Harmon/Kardon AVR20II. No output

    There is also no continuity to chassis ground, on the main input jacks which are user jumped to the pre out for the front channel. For when you are using amped speakers for that channel.
  12. roughshawd

    Harmon/Kardon AVR20II. No output

    Here's the meter. Here's the board.
  13. roughshawd

    Harmon/Kardon AVR20II. No output

    This morning, I was resistance testing the jacks, and found both video inputs, labeled VCR 1 and VCR 2 jacks have continuity to the chassis on their lead jack pinout. That lead me to a chip on the board assy #4001002700B. Thought I might swap the board if I can find one. It's got two(2)...
  14. roughshawd

    Harmon/Kardon AVR20II. No output

    Found this fragment laying on the output section of the mother board. It was laying right here... (screwdriver pointer)
  15. roughshawd

    Harmon/Kardon AVR20II. No output

    Downloaded service manual for this device from https://elektrotanya.com/harman_kardon_avr20ii_sm.pdf/download.html#google_vignette. looks good.
  16. roughshawd

    Harmon/Kardon AVR20II. No output

    Image of jacks...speaker outputs and Dolby set. Licensed in Canada. Video pass through for two(2) monitors. And remote in and out. Two(2) switched, and one un-switched 100w 1a,max power source AC plugins. Good to cool the immense heatsink, and startup accessories, like a preamp...
  17. roughshawd

    Harmon/Kardon AVR20II. No output

    Using the test button I get only C and R. So I can say it's not the power plant... Look at the size of the diodes!!! Typical seventies bridge! The transformer is a fine example of that era also... I don't think the heatsink is bad... unless there is a ghost in there.... Get out of there you...
  18. roughshawd

    Schematic question ...

    These are the diodes I am using. https://www.alldatasheet.com/html-pdf/61332/FUJI/D83-004/81/1/D83-004.html
  19. roughshawd

    Schematic question ...

    just for signature sake.... if you forget the + and - in any electronic device, you can immediately be tagged with the word... 'hacker' forthwith part of a group of idiots who often shock themselves albiet with even their intellect! So it's a good idea to remember, that when a signal crosses a...
  20. roughshawd

    Schematic question ...

    The web addr is https://www.geeksforgeeks.org/bridge-rectifier/
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