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820-00165-A - Turn on, but no chime

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  • #16
    I don't know anymore, you probably fucked up U1950 then. Or still crap under SMC

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    • #17
      Ok, i will replace...

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      • #18
        dukefawks I just replaced U1950 and still the same.

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        • #19
          No idea what you screwed up then. Maybe corrosion under SMC, could be anything.

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          • #20
            larossmann Any hint, master?

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            • #21
              dukefawks Can u give another hint?

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              • #22
                Crap under SMC?

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                • menatwork
                  menatwork commented
                  Editing a comment
                  U5000 looks clean!

              • #23

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                • #24
                  Yes a low resolution picture of U1950.

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                  • menatwork
                    menatwork commented
                    Editing a comment
                    Just for you check: No corrosion
                    That part u ask me before to check and i replaced that.

                • #25
                  dukefawks I can measure another component if you want.
                  Just guide me, please.

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                  • #26
                    I really have no more ideas. No mouse light now and Vcore present?

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                    • #27
                      Yes, i get light on the mouse
                      C1037 - PPVCC_SO_CPU - 1.5v

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                      • #28
                        Come on man, this machine is alive then. Do a PRAM reset and it must chime again.

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                        • #29
                          dukefawks I tried before!
                          I will keeping working on it.

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                          • #30
                            I just order a new U1950. Today i just put back and the CPU get really hot and then Shut down.
                            I get chime and everything, but back that point to shutdown.

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