New project Marantz 2250b

Discussion in 'Marantz Audio' started by pjf610, Dec 23, 2017.

  1. pjf610

    pjf610 Member

    Messages:
    67
    Hi all, since i am waiting for a replacement power switch for my 2216b, i am going to start getting into my 2250b So i turned on the 2250b (using a DBT) and it turns on no problem but no sound i did notice that the relay did not switch on, before i start cleaning things up, what are the first steps to see what's going on, I did notice there were no jumpers between the Main and Pre amp so i made up a set yet still no relay turning on. Where do i begin.

    Thanks Pat
     
  2. catrafter

    catrafter Marantz Specialist Subscriber

    Messages:
    5,898
    Location:
    Montana
    My first advice is for you to build a dim bulb tester if you haven't already.

    Tom
     
  3. audiomaniac2

    audiomaniac2 New Member

    Messages:
    28
    Location:
    Modesto Cal.
    Check out H701 which is an 18 volt zener diode.Make sure you have 18 volts dc across it.That's a weak link in this model.Also check out R713 make sure it's not burned out.This is on the p700 power amp board,.
     
  4. pjf610

    pjf610 Member

    Messages:
    67
    I have a DBT and the unit powers on ok the relay does dot click on should i check the relay first
     
  5. pjf610

    pjf610 Member

    Messages:
    67
    Since the relay does not click on and i get 35vcd on that board, doesn't that indicate that there could be something wrong with one of the main amp boards because doesn't the relay protect the main amp??
     

Share This Page