No announcement yet.

MP chassi problem


Adsense Classic 1

  • Filter
  • Time
  • Show
Clear All
new posts

  • MP chassi problem

    I've got an MP chassi that I cant get power to the machine. I've got power going to the sweep, table and B/E contractors. All the circuit breakers are good. The sockets are good as well. I'm not getting 120v either of the T2 or T3. I've also gone threw the whole chassi looking for any broke or loose wire connections, and everything looks good.

  • #2
    Masking unit switch circuit perhaps?
    There! Try to NOT work now!


    • #3
      T2 is where the managers control circuit gets it's power so if you don't have power at T2 then nothing will come on. So the first thing to check would be CB2. If resetting the breaker (CB2) doesn't work then measure voltage from ground to each side of the breaker. You should get 120 VAC on both sides of the breaker if it is good.

      If you get power to both sides of the breaker but the machine still doesn't come on then measure the voltage directly at the high side of T2. If you don't get 120 VAC across these terminals then you aren't getting power to the transformer or you lost the neutral. Check both sides of the transformer high side to ground and if you get voltage then you lost the neutral. If you don't get power to ground then you have a bad wire between CB2 and the transformer.

      If you get 120 VAC at the T2 input then test for 24 VAC at the transformers output. If you don't get 24 VAC at T2 output then the transformer is bad.

      If you get 24 VAC at the transformers output then check for 24 VAC at the AMC TBA/B-5 and TBA/B-6. If you don't get 24 VAC here then the problem is on the machine side. If you do get voltage here the jump 5 to 6 and see if the machine comes on. If it does then the problem is in the front end or the wiring to there. If not post back and we can run through the next steps to find the problem on the machine end.

      Good luck.


      Topic Starter RibbonScript


      Adsense Classic 2


      Related Topics



      Super Bowl Funday!

      This is how my day started. The note left by the night mechanic was "The cam needs adjustments. Table keeps going up and down."


      Distributor Clutch Stop Blade Wear

      Replaced this stop blade on an Edge machine at a private installation I service. It looks like this after 20,000 frames. The stop blade on the machine next to it looks new after...

      Qubica BES-X Lane Advertising

      Anyone know if/how to replace the BES-X "station ID" graphic that shows up before and after a video ad runs on the monitors? I'd much rather have it show our logo, especially...

      Preventative Maintenance - Jet Back Booster & A2 Accelerator Control Boxes

      I convert my booster control relays over to Plug-ins as they fail. They are the same as the Motor Start & Recycle relays which makes it very convenient.


      Making TDM's adjustable.

      I have some machines that the time delay cycles like right now when machine is triggered instead of the 3 sec delay. Would like to put in a potentiameter to correct this. Does...

      Solderless relay conversion

      Is anyone running the solderless relays on the accelerators? How do you like them? What brand? How difficult to convert was it? Would love the feed back as I'm about to switch...