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Re: Planar 19'' model #PE1901BK---REMOVE THE BACK PANEL.
Check to see if the various connectors are mounted on a separate subpanel that is independent of the back cover or if you must perhaps remove some of the protruding connector hardware.
The 'F' connectors (the threaded coaxial type for cable or antenna input) for example, may have a fairly large diameter (but thin) nut securing them.
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Remove all screws, then take a credit card(will be destroyed) and push it in the rim at the middle of an long egde of the sreen toward the front. shift it bback and forth then go to the small side and do the same. When you use a screw driver or knife it will look ugly afterwards or you break a hinge.
1) Pull the stand out of the bottom of the monitor (it isn't held in with any screws). 2) Remove the two screws now revealed by the removal of the stand. These are the only two screws holding the rear panel on. 3) Slide a couple of old credit cards into the gap between the front and back panels starting from where the base inserts. As you lever the two panels apart, slide the credit cards along the gap to stop them from clipping back together. 4) Insert a flat-head screwdriver into each of the little slots at the bottom of the monitor and start to lever the back panel away from the front bezel. 5) Carefully use the screwdriver to prise the back panel away from the monitor, starting from the gap you created using the first two slots and working your way gradually around the frame. There are tiny clips every three inches or so all the way around. Each one will release with a fairly loud 'pop', but don't be too concerned - if you're careful, you won't do any damage (use just enough force to get it to release, without using so much you smash anything).
The plastic IS fairly soft, so do your best not to damage it - using credit cards between the screwdriver and monitor will help to protect it; but then if you're doing this, I doubt your monitor is under warranty (and you won't see the small scratches and indentations you make anyway, as they're on the back of the monitor).
Taking monitors apart can be a pain and tough.
I do quite a few and some are really rough to unsnap !!
Remove the stand and cords.
Remove all rear screws.
Then the hard part is unsnapping the trim from the case without using a crow bar or breaking it.
Start at the bottom first that way if you leave a couple marks they are
not so visible. You'll need something thin with a beveled edge to slip
between the two plastic parts to release the catches as you rock the
trim back and forth from the screen.
(the edge of a pocket knife works- a credit card can have an edge sharpened with a file- sometimes real good fingernails work)
If the screen is all white light then you can have a number of problems.
One could be a bad video board, the next could be a simple loose wire
from the video board to the back of the lcd screen OR a simple blown
fuse on the back of the actual lcd screen can cause the same thing.
Snaps are all sround these things and can be really stubborn at times.
Best to start the bottom first then work up each side to the top.
Something flat, thin and with a decent sharp edge on it will help. A
pocket knife held parallel to the joint between the front and rear
plastic works, you can also sharpen the edge of an old credit card with
a file (nail file works) This isn't as strong as a blade , but safer if
you slip !!
To remove the front cover you need to start by putting the monitor down flat on its face on something that wont scratch the screen. Next, remove the screws holding the base to the back of the monitor. (You might need to remove a plastic cover to get to the screws). Once you have done this check for a screw under where the base was screwed on. Remove this screw. Now check the back of the monitor for one screw in each corner. Not all models have these 4 screws,if they are there, remove them. Now the front and back of the monitor are held together with plastic clips. You will need to gently pry the front and back apart. Its easiest starting at the bottom middle and working around. Once you have separated the front and back, the inner circuitry is exposed. The control panel for the unit can be removed by unscrewing 3 screws that hold it in.
I've run into several of these screens with the issue being not turning on. In fact, the power light doesn't even light up. Here's how I make it like new:
1) remove the base via three screws attaching it to the screen.
2) using a flat head screw driver (-) and applying enough pressure on the opposite side of the screen, gently insert the blade of the driver into the cracks between the front and rear pieces of the monitor (grey in color). Work your way around gently and this will separate the two halves.
3) from here, work your way to the boards. In the revision of this model I am used to working on, there are two boards. The problem is on the power board (beige in color).
4) once separated, locate on the beige power board three capacitors with ratings of 470uF 25V. They should be located in a corner of the board. All the ones I have encountered are oozing from the top of the capacitors. Replace these three (or any other capacitors oozing or raised up on the top) with capacitors of the SAME RATING (VERY IMPORTANT). Once new capacitors are installed, put the monitor back together and voila! Just like new.
you have snap frame around the screen itself use flat screw driver fine edge, theres about four locations that snap into slots work them away and remove frame, then remove screws on back will seperate ,you will have to remove monitor button panel board to, once inside, four screws around screen itself once in side,this will lead you to power connection inside main screen frame, the board and the connections
This is for a Viewsonic VX900. The bottom bezel with the button unclips.Unplug the connector, and put aside. ( Dont pull on the wires) Then there are two screws that are removed, and the grey frame around the monitor comes off next. Then remove the 4 bottom screws, and the two top tiny screws and the LCD comes away from the back. Remove the shielding, and replace your components. Good Luck !!