Seemingly dead CF-54 MK2 - any ideas?

Discussion in 'Panasonic' started by dan_189, Jul 20, 2021.

  1. dan_189

    dan_189 Notebook Enthusiast

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    Hi all,

    Recently bought another CF-54 (love the Toughbooks!) and with it came with another one for parts both are MK2.

    I'm trying to get the parts one running but not having much luck. When I press the power button, the "on" light and the "wifi" light turn on but that's it. No screen etc. can't get to BIOS.

    So far have tried turning off concealed mode, tried turning it on with a battery only then with a genuine charger, with and without RAM installed. Have tried pulling the battery & charger out and holding the power button down for one min, still nothing.

    Any ideas before I send it off to see if it can be repaired? Maybe CMOS battery?

    Thanks!
     
  2. steve.steve

    steve.steve Company Representative

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    Swap memory. If doesn't fix.
    Bad processor or cmos
     
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  3. dan_189

    dan_189 Notebook Enthusiast

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    Thanks, memory being the ram?

    Might try and change the cmos battery before I send it off to be repaired
     
  4. steve.steve

    steve.steve Company Representative

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    Yes ram.
    Computers will run without a cmos battery
     
  5. dan_189

    dan_189 Notebook Enthusiast

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    Thanks Steve, tried without the ram unfortunately same result.

    A more sinister problem perhaps?
     
  6. steve.steve

    steve.steve Company Representative

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    You have to have a least 1 memory stick (ram) for the machine to run.
    You do not need a cmos battery when testing.
     
  7. dan_189

    dan_189 Notebook Enthusiast

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    Got it thanks, might swap around some ram modules and see what happens. Should I see at least the Panasonic logo on startup? As I'm not even getting that?
     
  8. steve.steve

    steve.steve Company Representative

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    Yes you will see the logo if the laptop works.
     
  9. dan_189

    dan_189 Notebook Enthusiast

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    Thanks, sorry I should have clarified without any ram installed or even incorrect speed of should I still see the Panasonic logo on startup?

    The ram I installed was from a MK1 unit. Haven't tried ram from the other MK2.
     
  10. dan_189

    dan_189 Notebook Enthusiast

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    Okay so some progress, installed a different ram module and got it to display the Panasonic logo and got into the bios... However the screen is really dark, too dark to see anything so I think I need to replace it.

    Any ideas on how I can tell if I need the 1920 x 1080 or 1366 x 768 version?

    Guess I could stick a hard drive in it and put it in my dock to see.
     
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