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Samsung model ln40a450c1d Screen turns on and displays but the image is cloudy/grey

Samsung model ln40a450c1dScreen turns on and displays an image, but the image is cloudy/grey and the colour is not sharp. Have already tried a factory reset on the picture. Tried different input devices and ports.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: No picture, sound works. Screen flickering

That problem is caused by the Y Sustainer board.

Posted on Apr 05, 2008

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SOURCE: SHARP aquos 1080p HDTV: VCR image flickers when playback

I have the same model TV and the following worked for me. I am using A/V cables attached to Input1 on back of the TV.

On your Sharp TV remote control:
1. Select the Input (1-5) that is attached to your VCR.
2. Go to the menu and select options.
3. Change your color system to NTSC.

This should stop your picture frome flashing on and off.

You still may have a issue with the screen colors. I don't know of a way to address this, other than to make the picture monochrome.

Hope this helps.

Posted on Jul 09, 2008

mistersony
  • 320 Answers

SOURCE: HDMI Input Stopped Working Sony Bravia KDL-40S2000

Bad input board BU or AU

Posted on Oct 18, 2008

satavlad
  • 405 Answers

SOURCE: sharp model lc19sb25u sound and no picture screen

Part called main unit failed and require replacement. part number duntke352fm02.

Posted on Oct 28, 2009

  • 2 Answers

SOURCE: flat tv, sound but no picture. have tried

I had one that had a black screen and fixed the problem by repairing the inverter. When I opened the unit I looked at the capacitors on the inverter board and found them swollen. I looked at the bottom of the board and found that the fuse had opened up. The caps were a cheap quality low temp variety 150uF at 25V I replaced them with 330uF 25 volt 105C caps. I then replaced the 2.5A surface mount fuse with an axial 2.5A pico fuse and the TV worked beautifully.

Posted on Jan 08, 2010

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Samsung tv's


The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

May 25, 2017 | Samsung Televison & Video

1 Answer

Samsung ln40a450c1d no picture on screen when pressing the channel button it blink only with a low grey look no sound or picture thanks


Good day!!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

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1 Answer

Samsung lcd tv 40" model#ln40a450c1d.


try changing the aspect ratio to 16:9 if not it could be a burnout.

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Sony handy cam Hi 8 ccd trv308


Sony has a recall on some of these ccd imager problems. Contact Sony to see if your model applies, but it sounds like an imager problem on your pal format camcorder. Larry

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Set your setting to "Secondary Screen Only"
As your setting for both screen doesn't seems to be adjusted but you can try turn it off.

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L C D panel is a blurred screen


ur lcd seems to be faulty dear need to check it .... der would be no display and only grey colour is being shown by lcd..
which model r u using i can provide u the lcd

Jul 14, 2009 | Sony Video Cameras

1 Answer

Samsung SyncMaster 710N 17" LCD Monitor - Grey screen


Does this unit have an external power supply (wall wart)? If so, substitute a known good one of similar specs. If the original is 12 Volts/1.2 Amps, find a 12-15 Volt/1.2 or greater Amp. DO NOT go over the voltage more than about 15-20%. DO NOT go under the current rating less than 90% for just long enough to see if it works. Be sure the connector fits PERFECTLY!!! Some will appear to fit but will be loose. Do not under any conditions replace a DC supply with an AC one or vice-versa.

Sep 12, 2007 | Samsung SyncMaster 710N 17" LCD Monitor

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