Question about Dell 1704FPVt 17" TFT LCD Flat Panel Monitor

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Broken power button board (under bezel) need a replacement board/cable

Need part. Dell does not stock it.

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Posted on Aug 04, 2008

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My Dell falt panel monitor with model 1901FP displays for a second and switches back to no signal. What should i do?

1. remove plinth from monitor by pressing the button on the back of the screen
2. Remove four black screws that attach back bezel to inside of monitor
3. Flip the monitor over so the screen is facing you and start prying up the front bezel moving the flat bladed screwdriver along as you pop open the top bezel.
4 once the bezel is loose you can leave the front bezel in place and remove the back cover leaving the front bezel in situ.
5. You will see two shiny shields fixed with two screws, remove the screws and you can pop/slide the shields off.
6. Once they are removed, you will see one connecting to the screen which has two levers either side, press those in and wiggle the ribbon cable out.
7. on the other side you'll see a smaller ribbon cable which simply pulls out. You'll also see the high tension plugs which were under one of the RF shields they are usually pink and blue, make a note of which goes into where and unplug
8. You're now ready to remove the screws around the edge of the LCD screen and it should come off as one unit.
9. You'll see two boards with one of them which has a black non shorting cover held on by one screw, remove the cover, then proceed to remove the other three screws.
10. Locate where the power is usually plugged in and you'll see two screws either side of the power socket remove those.
11. You should see that the power supply board is now loose and can be wiggled free making sure you don't damage the berg strip connector which attaches it to the other board. it usually comes out at a slight angle quite easily.
12. Once out flip it over and examine the tops of the brown capacitors you'll see that two have vented, and gone pyramid shaped, they've blown.... In my experience and I've repaired hundreds of these monitors it is only ever these two that have gone, but if you find others that have vented replace those as well, making sure you observe polarity correctly with the replacement capacitors

Sep 28, 2016 | Dell Computers & Internet

1 Answer

ON/OFF Button is stuck ... in the "on" position,

You will have to open it up and get to the front bezel where the switch PCB assembly is screw down to the front bezel with VERY FRAGILE ribbon cable.
It may have broken plastic actuator on the button that makes contact with the TACTILE switch, the plastic assembly is not available as far as I know.
You may also want to inspect the caps.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.

Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Replacement board:

Dec 29, 2010 | Dell E177FP LCD Monitor

4 Answers

Dell Flat Screen off/on switch broken

Mohons, Get with the the program, will ya!! A video clip is worth a thousand words!! Try a search at YOUTUBE for the longer 6 to 10 minute video clips of "LCD monitor disassembly" and "LCD monitor repair". Here is a clue. "Parting the rear cover from the front plastic bezel is the hardest part." Go watch some video. You will be glad you did. And while your inside the monitor, why don't you check the "switch-mode-power-supply board for any swollen and/or leaky electrolytic filter capacitors! Do you have an OHM-Meter or DVM to check the switch? Bye for now. 12fixlouie
ps. could be SMPS is not "listening" to a GOOD switch!

Dec 01, 2009 | Dell E153FP 15" LCD Monitor

2 Answers

How do you open the case of a E153FPc Dell monitor? I need to get at the electronics to try to fix a ''screen going blank after a few seconds'' problem.


Under the the pedestal mount there are four screws. Once you've removed all the screws and the attached devices and cable (most importantly the power cable must be removed). Now you'll need a couple of flat diddle sticks (Radio Shack). Use these under the front bezel in between the the plastic front bezel and the metal rim of the internal screen. You'll actually be prying these two apart until the front plastic bezel snaps away from the rear plastic container. This won't happen if there are any screws left in it. Once you have all the plastic off, it's time to put on your anti static wrist strap and open up the metal containers.

Jul 29, 2009 | Dell Computers & Internet

2 Answers

How to disassemble monitor Dell 1800fp ?

Remove the base by the button release or 4 screws on the back. On the bottom of the monitor near the corners you will find two thin slots where you can insert a thin wide blade screwdriver or pry tool. Very gently pry the back from the bezel toward the center from both of these slots until the bottom is seperated, then contilue from the slots around the corners and up the sides until you have seperated the entire back from the bezel. Lay the monitor on the bezel and remove the back ( do not try to remove the bezel, at least not yet). Lift the tape that secures the ribbon cable from the bezel buttons to the logic board. Unplug the ribbon cable from the logic board by pulling on the connector (not the cable). Remove the cable covers from the back of the case (one has a screw, the other has a lift tab) and disconnect the lamp connectors and ribbon cable connectors (do not pull on the wires). remove four screws and lift the metal back from the screen.

May 15, 2009 | Dell UltraSharp 2001FP 20.1" LCD Monitor

2 Answers

How can i open the 2405

I opened up an LCD by removing any screws you see on the backside and any that may be hiding under rubber buttons or stickers. Gently pry apart the frame from one side, center. Youll find out that the frame is clipped onto the rear part by integrated clips and youll ba able to see if you need inward pressure on the frame or base to unclip the frame portion. It is a "nervous time" procedure but the plastic is pretty tough and its not doing you any good as it sits, right? The power supply had one fuse and had the inverter intregrated into it. Mine was fine, but an SMT MOSFET component on the driver board was completely blown apart from voltage spike. Salvaged LCD and tossed.

Jan 08, 2009 | Dell UltraSharp 2405FPW 24" Flat Panel LCD...

15 Answers

Power button stuck on Dell 1907FP

Hey People! You Dont Need To Do Any Of This! Just Take Off The Power Button " Via A Small Screw You Insert In The Side Of The Power Button, then You Lift It Up And Take Off The Power Button" Then You Just Take The Edge Of A Tack Or Very Small Obect, insert it in the side, push down and it works! on and off like normal, and nothing complicated!

May 30, 2008 | Dell UltraSharp 1907FP 19" LCD Monitor

5 Answers


connection could be loose ,loose pin on pinout plug, dirty connection,broken wire in cord,make sure connection is tight,bad ground in plug or wire

Sep 06, 2007 | Dell E152FP 15" Flat Panel LCD Monitor

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