KM With great products come great headaches!!!

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  • emujo
    Field Supervisor

    2,500+ Posts
    • Jun 2009
    • 3009
    #1

    [Misc] KM With great products come great headaches!!!

    On at least 3 of the KM 650 series, we have gone out to do a simple IU, or Fuser replacement and blown the MFP boards. Syptoms are Control Panel hangs at start up or will indicate "ready to copy" but start button never turns blue..And these are machines that were working just fine prior to the change, just CQ issues. No rhyme or reason for this..just posting to see if other techs have seen this issue on these or later products. Emujo

    Merry Christmas or whatever you choose to (or not) celebrate. Thanks to those who have helped me out over the last year and apologies to anyone I annoyed. Looking forward to the tech support and great laughs all of you have contributed to this site. Emujo
    If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.
    Tags: None
    • kingarthur
      Service Manager

      1,000+ Posts
      • Feb 2008
      • 1301
      #2
      Re: KM With great products come great headaches!!!

      I had something similar on a C451, replaced 3 colour IUs & said ready to copy, but just hung there, but it was the RAM i had to replace....got no idea why....
      Tip for the day; Treat every problem as your dog would.....If you cant eat it or f*ck it....then p*ss on it & walk away...

        Comment

        • JR2ALTA
          Service Manager

          Site Contributor
          1,000+ Posts
          • Feb 2010
          • 2028
          #3
          Re: KM With great products come great headaches!!!

          great products don't blow boards. anyone investigating if KM is using child labor on these parts? retarded children.

            Comment

            • manoreth
              #4
              Re: KM With great products come great headaches!!!

              Have you tried replacing the firmware ?

                Comment

                • EarthKmTech
                  Step aside, noob

                  1,000+ Posts
                  • May 2009
                  • 2139
                  #5
                  Re: KM With great products come great headaches!!!

                  I've blown ram changing a fusing unit before, go figure.

                  I guess the moral of the story is, you should be wearing an earth strap at any time you go inside these machines no matter what your doing.

                  I blame my incredibly povo shoes, but hey im a copier tech, i cant afford Versace, vicious cycle.

                    Comment

                    • tmathiou
                      Technician
                      • Aug 2011
                      • 18
                      #6
                      Re: KM With great products come great headaches!!!

                      [ID No.] TAUS0702587EN02
                      Publisher
                      [Company] BUS
                      [Group] BUS_Service_Production
                      Contents
                      [Original Doc. No.] TAUS0702587EN01
                      [Open Date] 24.08.2009
                      [Doc. Language] English
                      [Doc. Priority]
                      [Product Name] bizhub C250
                      bizhub C252
                      bizhub C351
                      bizhub C450
                      ineo+ 250
                      ineo+ 251
                      ineo+ 350
                      ineo+ 450
                      [Option]
                      [Subject] Start button is flashing amber.
                      [Description]
                      [Solution]
                      CAUSE: PWB-SIF has failed.
                      Note: The Main motor may have been replaced earlier due to a C-5102 error.

                      SOLUTION: Replace PWB-SIF (p/n 4038 0123 03 for bizhub C250/C252 and p/n 4037 0130 06 for bizhub C351/C450).
                      [Attached Files]
                      [Rev. Memo] Add models and info - CBC
                      [Problem code1] Main body control failure
                      [Problem code2] R99:Other control failure (main body)
                      [Info. Type1] Other
                      [Info. Type2]
                      [Info. Type3]
                      [Info. Type4]
                      [OS]
                      [Emulation]
                      [Application]
                      [Network]
                      [Feature]
                      [Location]
                      [Others]
                      [Related Info.]
                      [Rating Score] 11
                      [Quality Score] 11

                        Comment

                        • emujo
                          Field Supervisor

                          2,500+ Posts
                          • Jun 2009
                          • 3009
                          #7
                          Re: KM With great products come great headaches!!!

                          Perhaps I wasn't clear enough...the problem is solved, just looking for feed back from any other techs that may have seen this issue, what you did to resolve is and in your opinion, what is the cause...thanks anyway for the tech bulliten posts though...Emujo
                          If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22927
                              #8
                              Re: KM With great products come great headaches!!!

                              On a C452 I had a failed color drum drive motor take out the PRCB.

                              The interesting part is that there was no voltage to the motor. I tracked it back to the PS. Replacing the PS did not help. Further tracking lead back to the PRCB. And all without a decent circuit diagram. The only useful thing in the manual was the connector pinouts. The rest I did with the circuit boards on a desk, following the traces with a magnifier.

                              What ever happened to the days when you could get a decent circuit diagram? =^..^=
                              If you'd like a serious answer to your request:
                              1) demonstrate that you've read the manual
                              2) demonstrate that you made some attempt to fix it.
                              3) if you're going to ask about jams include the jam code.
                              4) if you're going to ask about an error code include the error code.
                              5) You are the person onsite. Only you can make observations.

                              blackcat: Master Of The Obvious =^..^=

                                Comment

                                • emujo
                                  Field Supervisor

                                  2,500+ Posts
                                  • Jun 2009
                                  • 3009
                                  #9
                                  Re: KM With great products come great headaches!!!

                                  Right around the same time frame that PWBs were made by machines that could attach miniature componants...What use is a circuit diagram if the connections/componants you want to check are not measurable with the clunky testers most of us use from the 90's...Even if you find a blown protection diode, you cant desolder it and replace it...A friggen main board costs 2 grand and most of the time it's thrown away unless your company has some way to repair it (HYTECH)..Emujo
                                  If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.

                                    Comment

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