Question about HP L1706 17" LCD Monitor

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How do i open my hpl706 monitor. i need to replace a capacitor

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Reomove the base and all the screws in the back, use thin flat blade screw driver to crack open at the bottom edge of the monitor and then work your way around, you should ahve the monitor face down on a flat soft surface.
See example here:

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

Posted on Sep 02, 2010

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  • Bud Martin
    Bud Martin Sep 06, 2010

    Did you find bad caps inside?





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740N not open

A common problem with monitors is the power supply. The electrolytic capacitors need to be replaced. The power supply is located at the back side of the monitor. The faulty capacitors are easily identified due to their shape (they become deformed after some time of use). It is common practice to replace all the electrolytic capacitors on the power supply (except the one or two big ones - high voltage capacitors). The cost of this repair is very low and it does worth to try (assuming you have soldering/desoldering skills).

Oct 29, 2013 | Samsung SyncMaster 740N 17" LCD Monitor


How To Repair LCD Monitor

The most common problems on Samsung LCD monitor/TV:
  • The power can not turn on, the red light flashing
  • the monitor on for a while and then turn off, then the red light flashing.
This is due to the weakening of the capacitor in the power supply module.
let's go hunting for bad capacitor.

I will explain how to:

  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are
  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.(see picture below)
  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated (see picture below)
  • Replace the damaged capacitor with the same value that you can see on the surface of the capacitor. (In this step you need any soldering tool)
My advice: replace capacitors with higher voltage, like 10V replace with 16V or 25V will be fine.

Have a Nice Repair :)

on Feb 12, 2010 | Computers & Internet

1 Answer

My dell ST2310 monitor is not enough bright even though setting up 100 for brightness level. Except that, it is working well. What is the problem?

That means one of the capacitors in the monitors' board is damaged.
This will be evidenced by a capacitor that is bulged or its leaking on the monitor's motherboard. You need to open up the monitor. If you do not know how to do that, then you must find a technician to do that for you. Then after you open it, check carefully on the power board of the monitor and look for a capacitor or capacitor that has a bulged head or its leaking. Now you have to replace the capacitor. This can be done well by a technician. Make sure that the capacitor being replaced, is of the same number rating as the one being removed, and make sure that it is replaced in the right position

Sep 09, 2013 | Dell ST2310 23 inch Monitor

1 Answer

How disassemble vg700b monitor backlite not working

I suggest you connect the VGA cable from the computer to another monitor or a laptop, just to make sure that your monitor's back light is faulty. If it does show on the other monitor or laptop, then the back light is really faulty. And i suggest that you get a computer technician to open it up for you if you can not do it yourself. Or you can get a sharp-flat object and open the monitor starting from the bottom of the monitor working your way round to the top. You will notice finger-like structures that hold down the monitor covers together. Make sure you do not break any of those. When you open it, check on the circuit board where you connect the power cable. Check for any bulged or leaking capacitors. Capacitors have a job to hold down the power from the source long enough for your display. For faulty capacitors, the monitor will either remain black with the orange light blinking, or it will display for at least between 2 to 8 seconds and then goes black. Buy the same type of capacitors and replace the damaged ones. Please not the polarity as you replace the capacitors.. Good luck

Feb 21, 2012 | Samsung Viewsonic VG700B Monitor

1 Answer

Power light becomes dim

I have discovered that this is a common problem with monitors and it is caused by capacitor failure. The capacitors in your monitor hold power enough for the display on your monitor. Inside your monitor, on the board where the power cable is connected, that is where you will find capacitors. Get any computer technician to open up your monitor and check for any bulged or burst capacitor. A malfunctioning capacitor will be identified with a bulged head or a burst. Remove the failed capacitor(s) and replace with the same type of capacitor(s) with the same voltage and degrees. Make sure that you note the polarity (-) and (+) when you are replacing the capacitors. This would help you out of your problems

Nov 21, 2011 | LG FLATRON M2900SBN 29 inch Monitor

1 Answer

White display on my lg flatron L192ws

Most common problems with LCD monitors arises due to weak or damaged capacitors. Disconnect the power and signal supply from monitor, then open the case gently. Use a flat screwdriver for pry opening the case, after removal of screws. Here you have to look for faulty capacitors on the circuit. On the PCB of the monitor, check each capacitor for deformation/leakage around it. In case of any doubt, it's better to replace the capacitor, as they are inexpensive. The only thing is that you should use the correct rating capacitor for replacement. You will need a soldering iron, and at best a multimeter for carrying out the job. After doing all this, assemble the monitor back, and your monitor will be working fine.
Caution : If you are finding yourself uncomfortable with all the work doing yourself, then ask for help from a qualified technical person.

Nov 01, 2010 | LG Flatron 563LE 15.1" LCD Monitor

1 Answer

On Planar PL1700 monitor, screen stays black after power failure

this is a common problem with the capacitor, try opening your monitor and see if there is a capacitor swalow like gonna blow... the capacitor has a form like a AA battery... if changing the capacitor the problem persist maybe is a problem with the board and you need to search if the board have continous power....

Jul 30, 2010 | Planar PL1700 17" Flat Panel LCD Monitor

2 Answers

Monitor doesnt turn on

From your description, it sounds like the internal 5 Amp cartridge fuse is open. Will need to open the housing and inspect the fuse for failure. If located and failed, replace it and energize the monitor.

If the fuse fails immediately, you have a High Voltage power supply short and the monitor is scrap. It will cost more to replace the power supply/transformer than the monitor is worth.

Hope this provides some useful information.

Oct 17, 2009 | ViewSonic OptiQuest Monitor

2 Answers

Gos black after 2-5 seconds, no picture at all not even with on the monitors own menu.

You may see very faintly that there is an image. The inverter or the filter capacitors are likely culprits. Open up the back of the monitor to get to the circuit board and if the capacitor is bulged out on top or leaking from the bottom, it is bad and needs to be replaced. They can be found all over ebay for under $5 with shipping per 5-10 caps. Hope this helps

Oct 04, 2009 | Gateway FPD2275W LCD Monitor

2 Answers

Monitor seems like its going to come on then goes black.


The problem on your monitor is a bad power supply. Because of heat buildup in LCD monitors2.gif parts called capacitors overheat and blow out. You can go to our web site at: and see what to look for, we have a repair guide for the HU173d model and it should be the same board in yours. If you open your monitor and see blown capacitors that look like the pictures on our site then replace the bad ones and you should be back going. Email me if you have additional questions or if you need to get the capacitors, we carry them in stock.

I hope this helps, if so please rate my solution.

Corporate Computer

Aug 22, 2009 | Microsoft HannsG HU171D 17" LCD Monitor

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