LCD Diaplay temperature issue?

Jun 13, 2007 5 Replies

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,


DaveC me@bogusdomain.net This is an invalid return address Please reply in the news group

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

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,

DaveC me@bogusdomain.net This is an invalid return address Please reply in the news group

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.

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.

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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get

unit.

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