• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

main amp board

  1. J

    CR1020 Main C board TR608 blows after recap

    I am recapping my CR1020 which was working until recently when I lost output on one channel. As well as recapping the main amp R and L boards I confirmed that the fuses were blown on the R board, TR613 and TR614 were shorted. I replaced 13 and 14 with MJ21193G and MJ21194G’s and replaced TR607...
    • jplewicki
    • Thread
    • main amp board tr607 yamaha cr1020
    • Replies: 4
    • Forum: Yamaha
  2. bzenic

    SX-838 No Output From Main Amp, Pre-Out is OK

    Here is my current situation: I don't have any output from main amp. The tuner works fine and there is a good signal from Pre-Out RCA, I've tested that by connecting Pre-Out to another receiver AUX input. There is no any output on Phones jack as well. The voltages on the protection board look...
  3. JB8

    KENWOOD KR-100 Main Amp Mysteries And Legends

    I have a KR-100 with what I'd like to think are some main amp issues, here's some backstory. Unit was filthy upon arrival, cleaned it significantly (pots, switches, general dusting) before checking the main fuse and powering up via DBT (I'm a sucker for this look, purchased untested) Output...
  4. Stereoboy70

    2216 Question. DBT

    Hello All. I have a question regarding the amp board. I recapped and installed new transistors. Right channel was out so I just did the whole thing. Had issues with the right channel after the repair and found a cap backwards but it is resolved. I had it plugged into a DBT and everything...
Back
Top Bottom