MP 2852 and SC-144

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  • Toner Man
    Technician

    50+ Posts
    • Mar 2011
    • 56
    #1

    [Electrical] MP 2852 and SC-144

    Parts replaced:
    1. IPU
    2. SIO
    3. Controller
    4. CCD w/SBU
    5. Harness from SBU to SIO
    6. Harness from SBU to IPU
    7. Power Supply
    8. Scanning lamp and harness
    9. Front and side door switches
    10. BCU


    There is a small board that sits in front of the power supply called a SBD board that has connectors going to the pwr supply, toggle switch, IPU and BCU that I have not replaced and not really sure what other purposes it serves outside of turning power on and off.

    Any ideas anyone?
    Tags: None
    • slimslob
      Retired

      Site Contributor
      25,000+ Posts
      • May 2013
      • 36240
      #2
      Re: MP 2852 and SC-144

      SDB = Shut Down Board. Not sure of the exact function as they no longer have the detailed descriptions. It appears to have 2 small relays on it. I haven't worked on a xx52 recently so can't remember if they have the delayed shutdown or if that was introduced with the xx53. If it has delayed shutdown, then that is what the board is for. Otherwise I would say that it is some type of safety board that will shut the machine down under certain danger conditions.

        Comment

        • kannuki2
          Trusted Tech
          250+ Posts
          • Feb 2012
          • 398
          #3
          Re: MP 2852 and SC-144

          Toner man, are you able to output the scanner motor? does the LED light come on?

            Comment

            • ruben
              The New Guy

              1,000+ Posts
              • Oct 2012
              • 1204
              #4
              Re: MP 2852 and SC-144

              Originally posted by slimslob
              SDB = Shut Down Board. Not sure of the exact function as they no longer have the detailed descriptions. It appears to have 2 small relays on it. I haven't worked on a xx52 recently so can't remember if they have the delayed shutdown or if that was introduced with the xx53. If it has delayed shutdown, then that is what the board is for. Otherwise I would say that it is some type of safety board that will shut the machine down under certain danger conditions.
              Delayed shutdown was introduced on the 01 range, I believe.

                Comment

                • Toner Man
                  Technician

                  50+ Posts
                  • Mar 2011
                  • 56
                  #5
                  Re: MP 2852 and SC-144

                  The lamp lights up, but I could not find an output check for the scanner motor.

                    Comment

                    • 1stcavvet
                      Trusted Tech

                      100+ Posts
                      • Apr 2015
                      • 231
                      #6
                      Re: MP 2852 and SC-144

                      I have a mp 2800 that will throw a SC 144 right in the middle of a copy job --- the whole machine will shut down and reboot ---never was able to find a cause.

                        Comment

                        • kannuki2
                          Trusted Tech
                          250+ Posts
                          • Feb 2012
                          • 398
                          #7
                          Re: MP 2852 and SC-144

                          Originally posted by Toner Man
                          The lamp lights up, but I could not find an output check for the scanner motor.
                          SP4013 - 2 with lamp on ...

                            Comment

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