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Blurred screen on monitor

In my lg500g 15' monitor display was over brighting and letters was blurred. how to adjust focus

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  • Dick
    Dick May 11, 2010

    LCD monitors appear blurry unless they are running at their native resolution. For a 15" monitor that resolution is probably 1024x768. If it still looks blurry there try 800x600.

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Im Roderick librabhoy my yahoo id i think u cant get it adjusting ur setting its very far from the problem.What only need to do is open the casing of ur monitor go on the flyback u can see the botton try to rotate the botton name fucos but u must open ur pc so that u can adjust properly. as well as they screen resulotion.Try it

Posted on Jun 19, 2009

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If that dont work then try to change your other settings on your monitor

Posted on Apr 24, 2009

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My Samsung crt monitor syncmaster 794mg is blurry I use as tv for month and and reconnect with system the monitor became blurry pls help


blurr y means focus out.
Also adjust brightness (reduce and check half an hour if not blur quickly need to adjust focus)

therefore need to getting help by professional technician to adjust the focus preset in the Fly back.

Also need to careful to avoid arc high tension voltage from anode and from fly back.

Also don't turn white balance much . may be monitor display off when power on if turned more. if reduce much monitor will black.

Jan 25, 2016 | Samsung Computers & Internet

1 Answer

Hi I have a Samsung 56V monitor . The letters have been appearing blurred for quite some time .


after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - MONITOR TUBE ) becomes weak - then 1 of the indication is ....picture becomes dull...blurr... (less brightness & less contrast , no clarity ) ........so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching monitor --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as sevice charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact monitor service engineer ------- because they are highly experienced & can fix this component very easily..

May 14, 2011 | SAMTRON 55V 15" CRT Monitor

1 Answer

TEXTS ARE TOO BLURRED AND BRIGHT ,IRRITATING TO THE EYES


after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - MONITOR TUBE ) becomes weak - then 1 of the indication is ....picture becomes dull (less brightness & less contrast , blurness )........so solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( very much compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching monitor --- this adjustment is very important ) ----------iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com) ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as sevice charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact monitor service engineer ------- because they are highly experienced & can fix this component very easily....

Apr 04, 2011 | SAMTRON 55V 15" CRT Monitor

1 Answer

The picture on my monitor is blurred n dull n d brightness cant b adjusted!


Monitor issue is not a Barcode Scanner problem.

Now then...go to your control panel/hardware and sound/display.

There should be options to change brightness and resolution as well.

Blurred issue you might want to make the resolution higher.

Brightness issue, manually change the brightness from your video options where I have stated at the first.

Aug 22, 2010 | Computers & Internet

1 Answer

Viewfinder of Sony DSC-H2 does not work anymore


Viewfinder has focus lever at bottom, please adjust viewfinder internal focus as per your eye sight looking on-screen display. Every thing will be fine after that.

Feb 04, 2009 | Sony Cyber-shot DSC-H2 Digital Camera

1 Answer

Diaplay Letters not cleard


Open your monitor's back cover and on the circuit laid underneath the CRT you will find a big black object. Check it, there will be two knobs having H- focus and V- focus, control them and your CRT will focus correctly. If still problem persists on the CRT there is a white box with three control knobs, adjust them.

Jul 24, 2008 | Samsung SyncMaster 753S 17" CRT Monitor

2 Answers

Tha display screen is dark, shows very faintly.


Can you be more specific ?
The first step is to isolate the system at fault:
1) Monitor hardware ?
Test it on another PC or
Try a different monitor on the same PC
Check monitor adjustments.
Check the video cable, try another one.

2) What kind of a monitor is it?
CRT (like and old TV) or an LCD flat screen

3) Video card problem, possible but not as likely

4) Video driver or operating software settings issue
wrong video mode, video settings the monitor can't handle,
incorrect device driver

lots of possibilities here.
MJS

Apr 18, 2008 | Computers & Internet

1 Answer

Blurred Corners


hi there, its a decousing problem, look for the connection of the decousing which is connected behined the pic tube to the board. check some electronic parts, it may be temperature resistor, termistor, transistors, capacitor, etc.ty

Dec 25, 2007 | LG Studioworks 775N 17" CRT Monitor

2 Answers

Dim compaq s510 crt colored monitor


Hi, If you are comfortable working with tools, down to component level and know how to work around EHV areas, then it is possible to increase the brightness of any monitor including the Compaq S510. Make sure that the unit is unplug, Open the back cover and locate the FBT. You have to run/power on/attach a running PC to the unit with the cover off. Extreme care must be exercised. If you are not sure, you're better off asking a qualified service professional to do the adjustment. There two plastic slotted adjustables, focus & screen. Adjusting the screen changes the screen voltage going to the CRT. This will make the display go very dark or overly too bright. Adjust to your preference (not necessarily technically correct) The focus may also be adjusted this way. You have to run the unit with the back cover open for a couple of minutes to stabilize the voltages and the heater/CRT/ Adjust after a couple of minutes if necessary. In other monitors, there is a trimpot (small variable resistor) the adjusts the sub-bright. Further improvement maybe achieved by adding a 100uF/250V capacitor across the supply of the 70+VDC of the 3 gun transistors. If you are sure how to go about this, it is best to consult or seek the services of a qualified TV technician who can either show where and how or do the job himself. Hope this be of some help to you. Pls post again how things turn up. Good luck and kind regards.

Jul 31, 2007 | Compaq TFT5004 (Black) 15 in. Flat Panel...

1 Answer

My samtron 55 monitor becomes hazy and out of focus


Focus and brightness (sometimes called screen control) are usually adjusted in the flyback transformer. Check for a bad connection where the flyback is soldered to the board. This could also indicate a problem with the CRT.

Sep 06, 2006 | SAMTRON 55V 15" CRT Monitor

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