Question about Samsung SyncMaster 753S 17" CRT Monitor

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Dim display in samsung monitor - Samsung SyncMaster 753S 17" CRT Monitor

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When the LCD monitor display is dim or flickers and or has a black screen then the fault is usually a faulty inverter or the CCFL lamp. When you look at the screen at a sharp angle and you see a dim image then it is a backlight problem and it is caused by a faulty inverter or a CCFL lamp.
Check out LCD Parts for parts, service, and DIY info. Use this link to their WEB site :-

Posted on Sep 06, 2009


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I cracked my screen a while back and started using a monitor for my screen, which i had no problems with what so ever. I bought a monitor off someone, as they were seeing which monitor was best they were...

I'd check the ext. monitor port for bent pins, or possibly even a broken pin - if it's bent you can probably straighten it out (very carefully using tweezers),; if it's broken then it's toast - that's pobably why you ain't getting a signal on the external.

The 2nd hand screen is either no good or improperly installed or it might not be compatible (I've seen incompatible screens where the brightness control adjustments are just ... reversed - i.e. dim means brighter, and brighter means dimmer). eBay is a pretty good source for these things (used, original stuff) so I'd check there if I still have access to the original screen (the cracked one). Check under Samsung N130 and you should see plenty of screens that are being parted out...

Sep 05, 2011 | Computers & Internet

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Display dim

Open the menu and change the brightness/contrast settings. If there is no change or if the picture seems dim, then it is a possible fault in the power section within the monitor or a fault in the display driver/convertor section.

Jan 07, 2011 | HP 1502 LCD Monitor

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Dim display problem

Hi there,

Have you tried adjusting the LCD's bright and contrast using the buttons on the monitor. Instructions can be found on page 12 of this manual:

If the lcd monitor is dim even upon booting up, then the backlights of the lcd itself is starting to fail and it needs to be replaced.

Please let me know if you need further assistance. Thank you for using FixYa. Merry Christmas!

Dec 25, 2010 | Samsung SyncMaster 540N 15" LCD Monitor

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Display light is dim

Hello, If you display light is dim, could be 2 reasons. 1. the Lamp(s) on the display or the Inverter (the unde supplying power to the monitor). It´s hard to determine from here without physical inspection. What you can do (because you have to either replace the whole screen or these components- not an easy task for the regular user) is connect an external monitor and press FN + F4 (twice) while you get a replacement.
If you really want to replace it yourself, just go to Ebay to get the parts and youtube on How to´s, but again I do not recommend this. This has to be performed by a professional.
I hope this helps.

May 08, 2010 | Samsung R610-64G Laptop

1 Answer

Monitor comes on dimly then goes off

The most common cause of dim displays on this unit is a failure in the back light power supply. This problem can be fixed if you can do a little soldering. Here is a link to a repair guide that will show you how to dis-assemble and repair the power supply board.

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


Nov 17, 2009 | Samsung 225BW Monitor

1 Answer

Dim lcd screen samsung 732n

sorry its a defective unit

Oct 20, 2009 | Samsung 732N 17" Monitor

2 Answers

I have a Dell laptop D505. The laptop powers up but the screen display is very dim. I can't see the image on the monitor. I've tried to manually increase the color/brightness button and nothing changes. ...

Sounds like your inverter or your backlight is failing. The inverter is an easy repair, the backlight can be replaced but it involves taking the LCD panel apart, The backlight comes installed on new screens. I can include a service manual below and possibly a generic guide to backlight replacement....

Sep 23, 2009 | Dell Latitude D505 Notebook

1 Answer

Samsung SyncMaster 213T - DIM DISPLAY

I would follow the self-test below. If you see the same issue in the test screen then your monitor has lost it's sync and would need a board replaced.

If it dosn't appear during the test, then you might want to test it on another PC.

Self-Test Feature Check
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.

Jul 22, 2009 | Samsung SyncMaster 712N 17" Flat Panel LCD...

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My samsung NW920 turns off after 1 min

If the blue LED ist blinking the monitor does not receive a video/sync signal. If the blue LED is on continuously and the display comes on for a few seconds and then goes dark or dim the backlight inverter may well be defective. The CCFL of the backlight needs several hundred volts to function.

Jan 11, 2009 | Samsung SyncMaster 920NW Monitor

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Very Dim display

If you have tried all the usual adjustments (brightness etc), then the inverter board or the backlight itself is bad.

It's pretty hard to tell which one it could be, given as they are both related (the inverter board powers the backlight)

I had that happen to a few 192N's, and it was a bad inverter board in both cases.

Feb 08, 2008 | Samsung SyncMaster 172N 17" LCD Monitor

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