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    CF-27 backlight flickering

    Discussion in 'Panasonic' started by lxsys, Aug 29, 2010.

  1. lxsys

    lxsys Notebook Consultant

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    My CF-27's recently developed a flickery backlight when it switches on, is this normal?
    It's also a bit dim, I have to use it at full brightness.
     
    lxsys, Aug 29, 2010
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  2. onirakkiss

    onirakkiss Notebook Deity

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    3 reasons:
    - to less highvoltage (the transformator in the inverter is broken)
    - to less environment-temperature (less than 5 degree celcius)
    - the fluorescent-lamp is old and will die soon....

    I would exchange the lamp or better, if u want to use ur cf-27 for the nxt years too, why not build in an LED-backlight, like I have done? ;)
     
    onirakkiss, Aug 29, 2010
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  3. lxsys

    lxsys Notebook Consultant

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    The LED backlight sounds tempting, but I'm rather lazy. I'm going to wait until the lamp doesn't work at all before I replace it, but I'll bear LEDs in mind.
    Are they quite bright/bright enough to be seen in the sun?
     
    lxsys, Aug 29, 2010
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  4. onirakkiss

    onirakkiss Notebook Deity

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    onirakkiss, Aug 31, 2010
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  5. lxsys

    lxsys Notebook Consultant

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    From what I understand, I would need to use a logic inverter, otherwise I would high brightness at low and low brightness at high. Am I correct?
     
    lxsys, Aug 31, 2010
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  6. onirakkiss

    onirakkiss Notebook Deity

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    Yep, if u will use the same PWM-controlled BUCK like I use.
     
    onirakkiss, Aug 31, 2010
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