Question about Dell UltraSharp 2405FPW 24" Flat Panel LCD Monitor

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Broken plastic function button replacement?

The PIP button on my 2405 has, through constant usage, become defunct as in I can't feel the micro switch behind it anymore when I pres it, actually the button is lopsided so I'm going to guess that the plastic post that normally connects with the micro switch behind is history. What are my options at this point?

If it's simply a plastic post problem then, is this a part that can be ordered up online? I'm not averse to running riot with a screwdriver, though some pointers on how to disassemble the frame to get at it wouldn't go amiss. I'm fairly sure the micro switch is ok and that it's simply the actuall plastic button thats at fault.

BTW for future products, it would have been nice if those buttons were available off an IR remote control 8/

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Looks more like the tact switches inside the unit are history and have to be replaced. The switches are relatively cheap $2-$3 each, but replacing them inside the monitor needs some skills...;)

Posted on Jan 12, 2009

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Neovo f-419 menu keeps scrolling and will not stop


You have dust on the micro switches on the front.You can resolve this by flicking the buttons on the front, or you could take it apart and clean the switches with a spray cleaner like wd40 through them making sure you mop up all the excess.

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Any unit, this monitor, a TV a DVD etc that has front push type buttons can have this issue.

Behind each "button" is a tiny micro switch--the outer button activates it and it is a MOMENTARY switch which means when the outer button is released it should stop functioning.

If you follow this what likely is bad is the micro switch under that specific button.

The switch will feel fine and seem ok but it is activating inside and what ever it controls will act.

Two ways to prove/disprove this.

Gain access to the individual switch (mode in your case) and unsolder it from the board they are usually mounted into--get the unit up and on and see if the problem persists or not.

Second way, with the buttons accessed take a good ohm meter and read across the two typical pins for each switch---there should be not be a bit of a reading unless the switch is manually activated---I have seen ones reading 4000 ohms and even more or less--even with switch out of the circuit.

Even that resistance is enough to activate the switch.

Prove for yourself that I am either right or wrong in your case.

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