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Anyone able to help with this very old ultrasound machine?

I have an error code 4027 that comes up sometimes and a problem where the machine wont shut donw properly. Something somewhere is failing. Can anyone help. Board schematics or experiencing fixing them would be reallyy helpful. Thank you. Anthony

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Summary (SonoSite Titan Issue):

  • Error 4027 on the SonoSite Titan is most commonly related to power distribution faults, unstable voltage rails, or a board communication failure during shutdown.
  • Machine not shutting down properly strongly points to failing capacitors, DC-DC converter problems, battery sense issues, or loose/oxidized connectors.
  • Full schematics are not publicly available; only service manuals or partial diagrams can usually be found.
  • DIY checks include: testing with/without battery, checking the internal power board for bad capacitors, reseating connectors, and inspecting for cracked solder joints.
  • If no obvious component damage is found, the fix usually requires a donor board or a biomedical repair technician.

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Anthony sarà eternamente grato.
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