Question about Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

740N blank screen

740N buzz on startup, buzz fades, normal operation. Then blank screen, plower led on. No ''check signal'' message, VGA / no VGA Need to ID capacitors in backlight power system.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,361 Answers

I would inspect all the caps, if you find even one bulging top/leak you should replace them as a set.
See failed SAMSUNG here, use good caps, such as PANASONIC FM or FC series from DIGIKEY.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Service manuals:
http://elektrotanya.com/?q=showresult&megnev=SAMSUNG megnev2 =% 20 & 740N = & Category = & kat2 schematics

Posted on May 03, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Wont startup, on screen says "no signal", both


on screen says "no signal", both green & red diode light are up :

plug vga cable tightly else check with new vga card

Feb 12, 2011 | AcerPower F1 PC Desktop

3 Answers

I have the VE278Q which is connected by display port, every time i turn off my computer and then turn it back on the monitor can't be found, I have to unplug the display port cable, unplug the monitor,...


when you say monitor can't be found did you mean the monitor has no reactions when you turn on your pc?

here are some test you may need to do to know which part is faulty
1. Turn on your computer, did it display the monitor's logo on screen? When it does monitor is good, when only blank screen it could be the vga cable or the video card.
2. See if the led indication lit. When it lit to steady green, it's good signal is coming in from the video card. It should be followed by screen display. If no display it could be the backlight inverter lamp busted or faulty inverter board. When lit green then turns red, no signal coming from the video card. Check vga cable if fix properly to both monitor and video card. Or may need to reseat properly connection of video card from the motherboard. If no led indication lamp, then monitor is dead. Check ac power cord for continuity using multitester. Check power supply section in the monitor, replaced bulged or blown capacitor with exact value, this components were the first to get affected when lcd monitor failed o turn on.
3. When computer was turned on got display and then monitor turns black, go check the vga cable, Fix the connection properly or may need to replace it with new one.
4. When no signal appears or display blank screen after logo, then check video card. First remedy is to disconnect it the reseat properly to the motherboard. If this have no effect change your video card.

go follow these steps and let me know which is closely to your problem so I can give you a good advise.

Jan 30, 2011 | ASUS LCD Monitor

1 Answer

My samsung 940N acts like a florescent tube, tries to start and doesn't


Use the self test feature.. follow the steps..

1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer.
3. Turn on the monitor.
If the monitor is functioning properly, you will see a box in the illustration below.
This box appears during normal operation if the video cable becomes disconnected or
damaged.
4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the
monitor.
If your monitor screen remains blank after using the previous procedure, check your video
controller and computer system; your monitor is functioning properly.

Warning

The Power supply inside the monitor can be hazardous and donot open the monitor while power on.

Donot work with the monitor when it is open and the power supply is on.

If there is something wrong with the input signal, a message appears on the screen or the
screen goes blank although the power indicator LED is still on. The message may indicate
that the monitor is out of scan range or that you need to check the signal cable.

Feb 13, 2010 | Samsung SyncMaster 940N 19 inch LCD...

1 Answer

I have a Toshiba Equium L40-156 laptop.When switching on a message appears saying windows is loading files,the screen then goes blank.


on startup press f8 a screen with a black background and white writing will display select enable vga mode. after windows loads reset display settings

Jan 22, 2010 | Computers & Internet

1 Answer

Pavillion dv2025nr Blank Screen, but all LEDs on.


VGA card problem..that's what tech told me & changed it 3 times...but still laptop goes off.(exactly like u described)...they finally said need new motherboard??? so VGA will not do this again!!!! I don't know, If I change motherboard...will this happen again...is it worth it??? My pavillion dv 2000 is only 1.5 years old..was expensive??/

Oct 01, 2009 | HP Pavilion dv2000t 14.1" Notebook Laptop...

1 Answer

Trying to locate a service/user manual for the motherboard


Remove the onboard battery out for about 30 minutes, this will cause the bios to go back to the default settings!
Or look on the board for CMOS RAM clear.
Pins 1 & 2 are normal mode and pins 2 & 3 will Clear the BIOS.
Here is some info from Compaq.

Mar 15, 2009 | Compaq Presario S4000NX (DF213AR) PC...

1 Answer

No input signal


Check connections, Hertz rate, and settings (if you can read them). Otherwise, it may be time to whip out the cash and get a new monitor and/or computer.

Aug 17, 2008 | Computers & Internet

Not finding what you are looking for?
Samsung SyncMaster 740N 17" LCD Monitor Logo

498 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Computers & Internet Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

kakima

Level 3 Expert

102366 Answers

phoenix chi
phoenix chi

Level 2 Expert

389 Answers

Are you a Samsung Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...