• 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

quadrial

  1. jFF_Bulbo

    Marantz 4430 FM..... help!

    Hello AK'ers I keep working on 4430, once it was repaired, i have no sound on FM right speakers..... I've tested and checked all the wires on input selector, pin by pin on each wafer it was bad worked previously, soldering wires on wrong pins..... What i´ve done: I conect a wire from J313 TO...
    • jFF_Bulbo
    • Thread
    • 4430 fm help marnatz quadrial radio repair repar restoration
    • Replies: 14
    • Forum: Marantz Audio
  2. jFF_Bulbo

    Marantz 4430 help.

    Hello AK'ers. I'm working on a beautiful 4430 unit. Promblems: When playing in MONO, left and right speakers sound (and sound amazing IMO) BUT when playing STEREO no sound... Well a Lot of noise and a very very low music volumen. I think someone tried to repair it before, but left a mess with...
  3. jFF_Bulbo

    Marantz 2440 help!

    Hello! I recently got a 2440 unit, nice shape, horrible sound!!, it has a pair of 2CS1445 transistors on output stage and a pair of NTE175 in the same stage, so, i think it has been repaired/modified befor. The thing really worries me is the unit doesn´t have the "dimension" potentiometer. I...
    • jFF_Bulbo
    • Thread
    • 2sc1445 marantz nte175 potentiometer quadrial repair stereo vintage
    • Replies: 14
    • Forum: Marantz Audio
Back
Top Bottom