LCD monitor disassembly

[Guest klarson8]

I want to remove the frame from my lcd monitor to fit it into my cockpit. Has anyone done this? What can I expect. I know there are some buttons on the bottom that won't have a home, so i'll have to mount them in some manner, but does the monitor need it's frame?

[Guest twabi2]

A monitor in se doesn't need it's frame.The plastic casing is there only for aesthetic purposes. The real frame is underneath that, and is made from metal.Precise instructions for the disassembly of your LCD may be found on Google, but it shouldn't be too hard to remove it yourself.I've already removed the frame of 2 different LCD's (for a repair), and I got it off and back on without any problems.

[npbosch]

I read once about high voltages. The casing could be more than just aesthetic, but also has a safety purpose.Or is the high voltage issue only a problem with crt monitors?regardsNorberthttp://home.wanadoo.nl/norbert.bosch/

[Guest Alkit]

expect there is a small wire (wires indeed) to connect the metal case and the plastic exterior case. Mine (Samsung) is removable. I guess the others as well. Therefore, when you open it up. Please do it very very slowly. Suggest you do this on somewhere with soft surface like sofa seat. This way reduce possible damage to the LCD screen.

[Guest twabi2]

There is indeed high voltage if I'm not mistaken (at least 230V entering), so you always have to be carefull...But normally, the metal case is grounded and should thus be safe to touch.Of course, never work with power plugged in :)

[oal331]

Yes there is haigh voltage.When i open my first PSONE tft monitor for FMC i saw a warning label about high voltage!Take care!!Eddie

[Guest theporcupine]

Hi there,You can see how I did mine in one of the tutorials on my site, www.desktopflying.co.uk . It is not too daunting and do not worry about high voltage. Every LCD/TFT monitor I have ever seen has come with an external power supply that plugs into the monitor. This does the transforming from 110/230 volts down to a stabalised 12v that usually plugs into the monitor via a jack connection. On reaching the internals of the monitor it is then further reduced to 5 volts. Even the oldest LCD/TFT monitors only used 2 or 3 ampere power with newer ones using even less. There is no more power going through the curcuitboards of a LCD/TFT monitor than any other board such as IOCards etc. Using CRT screen without the case is another matter!Hope this helps.The Porcupineaka Simon Webbwww.desktopflying.co.uk(Project suspended due to personal circumstances)

[Guest twabi2]

I'll have to counter that, sorry...The screen I'm currently working on has it's transformer built in (there's just a euro cable going in, nothing more).Also, one of the screens I dissasembled had an internal transformer. These things can be very dangerous when plugged in.But yeah, if you're cautious (like you always should be), not much can happen

[Guest spiliot_]

Each TFT screen has an internal voltage boost circuit for the backlighting lamps. They get the voltage high enough (~750V) to get you killed if not being cautious. Usually high voltage is limited inside a small PCB space, near a boost coil or transformer and get transfered to the back of the screen with white/pink cables (normally) sufficiently insulated.Still I got myself a shock for touching (for a split of a second) the traces near the boost coil. I know, stupid me...