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LCD Diaplay temperature issue?

Discussion in 'Electronic Repair' started by DaveC, Jun 13, 2007.

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  1. DaveC

    DaveC Guest

    A Gateway 26" LCD monitor/TV is getting warm. I measure 115oF (45oC) with a
    contact-type thermocouple sensor attached to a DMM.

    I'v been considering adding a couple of small 12v box-type vent fans to get
    rid of some of the heat from the active components in the back of the unit.

    Should I be concerned? What temp is safe for such a display?

    Thanks,
     
  2. Meat Plow

    Meat Plow Guest


    Fans would be ok if they don't create EMI.
     
  3. Charles

    Charles Guest

    Probably not. Do you smell anything funky ... like burning insulation?
     
  4. DaveC

    DaveC Guest

    Probably not. Do you smell anything funky ... like burning insulation?

    No.

    It's not insulation toasting that I'm concerned about, but toasting those
    things I can't smell (LED junctions, transistor junctions, etc.).

    Do these displays have a range of safe operating temps, in general?

    Thanks,
     
  5. Charles

    Charles Guest

    Yes, but I do not know what they are. If the temperature is unusual, based
    on past experience, then there could be a problem.

    If this is new equipment or a new environment, then you might be misled.
     
  6. Meat Plow

    Meat Plow Guest

    Usually there is a sticker, tag, something on the unit or box that give an
    operating range. I've seen it many times on other devices.
     
  7. If you use a fan that is quiet enough to not disturb you but strong
    enough to remove some of that heat it could make the TV last a lot
    longer. Your best bet is to have the fan near a top vent drawing the
    heat out.
    Cooler air should be drawn in through lower vents.
    Dust will also be drawn in and dst can trap heat - so it's a good idea
    to use some compressed air to clean it out every few weeks.
     
  8. HapticZ

    HapticZ Guest

    mine runs abt 95 deg f

    try running it at a slower refresh rate, say 60hz and see if a difference

    most just use enough holes in the case to dissipate heat, check for dust
    buildup or make more holes

    is power source burning up? check the input power and see if it is within
    the expected power consumption limits

    room temperature will affect heat disssipation also,

    even a moderate amount of air movement will make a difference around the
    case, as the case is often a sink for internal heat/thermal paths
     
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