Having problems with your Samsung SyncMaster 940MW 19" LCD Monitor ?

Intermittent Power Supply

\015 Have recently purchased and have only used as tv. Sometimes even though plugged into an active outlet, can not get any green power light at the screen. A day or two later it will work ok. Sometimes after minimal use it will shut down or it will go to a mode where none of the remote will work. Unit worked good for the first couple of weeks without any of these problems. Have not used it with a pc yet and have not configured it with any supplied software as yet.\015

Answers :

As with most Korean & Chinese manufactured products, the quality of construction in the factory can be less than desirable. We often find problems of this nature to be due to poor connections:sometimes it's as simple as the various cabling & harnesses between individual circuit boards & modules (those going to the light engine in Samsung DLP & LCD sets are notorious), but more commonly it's about the lead-free solder that the E.P.A. has mandated must be used in new electronics products for the U.S. market---lead-free solder requires higher temperatures to flow than older lead-based alloys, while the wave-soldering robotics used by these manufacturers is apparently still capable only of what they were designed to do, i.e., working with lead-based solder. Perhaps 25-30% of the problems we repair are of this nature...
I have same problem too. My monitor shut itself every 20 to 30 minutes.Only way i bring'em back on is unplug the monitor.But this is not the solution.
Repair Help & Product Troubleshooting for Samsung SyncMaster 940MW 19" LCD Monitor

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

HP Pavilion dv 9205 us tries to start up, screen stays black


THIS IS A LONG REPLY POST BE WARNED : HOWEVER IS LIKELY HELPFUL TO OTHERS WITH INTERMITTENT LCD / PORT ISSUES. MY STORY,... Hi all. Ok, i'm gonna chime in here on this. I have the HP DV9205us and i've returned my unit a total of three times. Ultimate ... HP Pavilion dv9205us Notebook

Thanks for reply, addl questions..


Hi again Tgeek,Appreciate the postback.In reply to your first query, yes especially those with 3-wire connection since they are variable RPM (depending on a heat sensor that dictates to what RPM the fan motor should rotate). ... PC Desktops

Intermittent power loss to Dell Inspiron 6000


You need to replace the mother voard along with the power supply.. sorry:( ~~hardware issue~~ ... Dell Inspiron 6000 Notebook

Asus notebook my asus notebook power supply is not working properly.


Redy, With the model number of your Notebook, you'll be able to find a replacement for your power supply at various auction sites, after market parts supply shops, and even the OEM power supply from the manufacturer. You can check for proper ou ... PC Desktops

Emachine W2047 No BIOS Start Screen


You can test the power button. Remove the wires from the power on pins on the motherboard. Momentarily jump the two pins with a small screwdriver. If the computer starts the power button is bad. If it still doesn't start then something else is wrong. ... E-Machines eMachines Desktop PC

Vx 2245wm "almost" Black screen


Craigcorbin, Could be "switch-mode-power-supply"/CCFL "INVERTER" supply that is flakey or better still has a "thermal" problem. Thermal problems arise from temperature cycling of the parts on the circuit board that heat-up due to their need to dissap ... ViewSonic Computer Monitors

Intermittently After Startup the PC Reboots Automatically


Either that (overheating), or best to check your power supply. A faulty power supply unit can cause severe damage to the motherboard and other sensitive electronic parts. If you do find it to be the power supply (test with another unit as as a contr ... Acer Aspire T310 PC Desktop

I Have a Toshiba satelite laptop. It has a week battery. It can't be swithed on when the battery has been removed so that it should be using AC power. But when I put in the battery and plug the pc to the AC power, it switches on but only for few minutes then I get the messege that the the battery is running out of power. How can I solve that problem?


You have a bad plug on the end of the power supply a loose jack on the computer or a bad power supply you need to test the power supply with a volt meter to see if it is putting out any power if it is you have a bad connector on the pc or an intermit ... Battery Technology PC Laptops

Blank screen for 15-20 minutes at startup


I have a Xerox XA7-19i. It has the same problem as described by many\015\012others - intermittent fault with the display that manifests as a white\015\012screen when the monitor is first switched on. After a few trys of\015\012switching on and off, t ... Xerox XG-91D 19" LCD Monitor

Optiplex 560 Power Intermittent


Try updating the BIOS. Seems there were some advanced power management improvements. ... Dell OptiPlex GX260 PC Desktop

Fan Races Computer Won't Start


The fan is drawing too much current from the motherboard causing the power supply to go into protection mode. Try replacing the fan with a new one and see this this does not fix the start up problem. You should check out your power supply and see if ... Dell (Fan Only) M/N AFC0912DE, DC12V, 2.50A, D/N P2780 P2780

You Tried Helping Me Wiht The Toshiba Laptop.


You may need to go into the controll panal and look at the power supply. and change the setting. Toshiba web site has lots of help with Toshiba problems ... Toshiba Satellite 1415-S173 Notebook

Power-on LED AL1916 acer LCD screen doesn't work, no display


Hi - I've just fixed ny AL1921 which would be similar to yours internally. There are a couple of issues which are common:Bad soldering around some of the copper coils (insulation may not have been properly stripped and leads to intermitte ... Acer AL1713 17" LCD Monitor

I bought my Philips Flat Screen TV Model No: 23PF9945/12 about 6 years ago. For the past 2-3 years, it's been switching itself off intermittently - sometimes 3-4 times a night! It's been in and out of the retailer from which I bought it several times, with no solution. I've just been putting up with it! Each time it happens, the screen goes black and there are no LED lights on - I have to switch it off at the wall plug, then on again - usually, it stays on for a couple of minutes and then goes o


Suziglantz, A good TECHNICIAN should be able to pinpoint where the problem is. I suspect that as long as the unit has perfect pic and sound when it IS ON, there should be no problem for a tech to find a thermally intermittant solder joint inside the ... Philips 23PF9945-37 23" Flat Panel LCD Monitor

Power light going to blinking amber


Sounds like a problem in the monitor's power supply.\015\012\015\012This will need component-level troubleshooting. ... Videoseven R17PS 17" LCD Monitor

Planar 2010M auto adjust


This may be related to a power supply problem that these monitor have.\015\012 \015\012I think you need to fix the power supply board inside the display itself. It's giving the logic board and backlights fluctuating power and they have w ... Planar PL2010M 20" Flat Panel LCD Monitor

Monitor started getting distorted, now laptop will not power on at all


Kudos to PC Pro Techie: what was true then (2009) is still true.I would like to add 5 quick steps, no tools required, no degree needed, to try first, prior to the owner risking the loss of a few of those 52 tiny, mostly different, screws which, ... Gateway PC Laptops

My Acer Aspire 5610z laptop picture is breaking up + going blank


Replace the screen, you can download the pixel tester softwar to figure out if the screen is going bad. I'm pretty sure it is.\015\012\015\012If you change the inverter its either the onboard video card on your laptop (usually not replace ... Acer PC Laptops

Desktop E Machine will not power on.


It is very common that the power supplies in those fail, which is most likly your problem. However, you can do a few things first to test other things. And don't worry, your pictures are most likely still safe on your hard drive, i would not link the ... HP Pavilion a420n PC Desktop

Dell inspiron 5150 do not come on when the power button pressed


If you remove the battery and disconnect power cord, then hold power button for 20 seconds, then reconnect power cord but do not re-insert battery, and the unit powers on okay, the problem may be your battery. If there is still an intermittent probl ... Dell Inspiron 5150 Notebook

What voltage is the dc adapter?


You will need at least a 4 amp rated regulated 12 Volt power supply.These are commercialy available from most electronics parts suppliers.They come on a circuit board. You can mount it in your own case anduse the original Viewsonic ... ViewSonic VA520 15" Flat Panel LCD Monitor

Packard Bell Easynote L4 Intermittent Power Problem


The cmoss battery on the L4 is underneath the board you have to stripit down to get to it ... Packard Bell Easy One Silver 2101 Notebook

Curly one Power switch plays up The motherboard is a new one and inspects fine. Also replaced control panel (power switch ) and power supply. It starts after multiple presses of the switch sometimes up to thirty presses. I observe the power supply and processor cooling fan when trying to switch ON and they just spin for a second or 2 then stops, motherboard may be intermittently grounding to the case.How do i remedy this? Thanks in advance. power to the board but will not switch on


Hi \015\012 there is way to find out \015\012First ,disconnect all power cable and data cable from hdd,fdd,and remove all pci devices.\015\012 Now you have to check your pc mother board not ... Dell OptiPlex GX520 PC Desktop

Laptop intermittently works with battery


The adapter does not have a switch. When you plug in the adapter into the laptop a LED lights up to indicate that it is connected to the mains supply and is charging.\015\012When you boot up the laptop with the adapter connected and check the p ... HP Pavilion zt1145 PC Notebook

How can I verify my suspicions my power supply on my sony vaio PCV-W510G is causing me intermittent issues. In the past I've gotten BSOD's with various and sometimes no error codes, and this week, the computer just shuts off.


If you have a multi-meter you can test the leads for +- 5% steady voltage at 12v and 5v. Google the ATX power supply standard for the list of what each wire does. Also there is some software that you might be able to run if your machine is still oper ... Sony VAIO PCV-W510G PC Desktop
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.3694 seconds