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Loss of brightness and red hue

The tv was working fine but a couple days ago i notice and thing red or reddish is showing up dull and not as vibrent.what could it be? Periodically the red hue is nearly lost..reds become a dingy brownish with only a very minimal amount of red. May be about 40% of the time. Thanks for your assistance

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I would need the model number in order to even begin to suggest a possible cause.

Posted on Jun 26, 2008

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6ya6ya
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Posted on Jan 02, 2017

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Samsung plasma TV model #pn42b400p3dxza problem with no image. The TV has sound but no image. I've tried using other components on the TV like RCA jacks with a separate TV digital tuner. Thank you


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.
Check whether Va & Vs voltage come to the display panel, from the main power supply regulator board. If not, the SMPS board [power supply regulator board] is faulty.

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My Toshiba remote control se-r0077 sometimes works to control the DVD player and other times it doesn't. I've tried new batteries and the problem still persist s


One of the best ways to check if an infra-red remote controller is working properly is to look at it using a camera. (a webcam or phone camera will work) The camera will see the infra red radiation as visible light. If the LED lights up (on camera) consistently when buttons are pressed, then it may not be the remote at fault, but rather the receiver in the DVD player. Most of the time though, it IS the remote control at fault, and these are usually easy to get working again.

Couple of things to check are:

1) the battery terminals...
Batteries can leak and corrode the terminals in the battery compartments. Signs of this include rust, green coloured contacts, or a crystalline deposit. If you see any of this then clean the contacts using metal cleaner or some methylated spirit and cue-tips.

2) Broken wires connecting battery terminals to the circuit board...
The soldering in some remotes can be rather poor, and wires can sometimes come loose, especially if a remote has been dropped or bashed about a bit. Unscrew the remote and check everything is connected properly


3) Dirt under the buttons...
This can prevent a button from making contact with the circuit board properly. Unscrew the controller and separate the rubber button pads from the circuit board check for dirt both underneath the pads AND on the metal contacts on the circuit board. Clean as required with methylated spirit and cue-tips and then reassemble.


Hope that helps!

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1 Answer

The color on my TV is all pink. I have tried a hard reset but it didn't help.


Your TV has lost a GREEN color from a basic color palette (Red-Green-Blue). It is often caused by:
- damaged LCD cable (which connects the display with a signal board inside the TV),
- damaged video signal cable (ex. SCART, HDMI, VGA),
- damaged video processor (on the signal board).
I can't give you a more accurate answer, because I don't know what is your TV mark and model and, in what situations you have the problem.

Jan 19, 2015 | Televison & Video

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I have checked cables and different methods of connecting, but the white and red audio out of my PVR appear to have stopped putting out sound.


Go through the setup of the PVR and check the sound settings. It sounds like it's only producing digital audio, that's why it works with HDMI but you want analog, so set the audio to stereo, or try every setting to see what works!

Jan 19, 2015 | Televison & Video

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Who makes neon tv and where can I buy a remotecontrol


Hi David....from what I can gather Neon is made by Cello
Electronics in the UK. Phone number 0845 519 2367 or
celloelectronics.com. For support from Bright House a zip
code is required and since I have no idea what area you
live in the onus is on you to Google brighthouse.com. Good
luck.

Regards,
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Oct 05, 2014 | Televison & Video

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When CRT JVC TV is first turned on, the image looks shrunken and warped, eventually, the image looks fine. What to fix?


SMPS fault. Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. Do a search by type in the brand name of your device at its search box.
http://electronicshelponline.blogspot.com/
Check all the electrolytic capacitors.

May 26, 2014 | Televison & Video

1 Answer

Devant ER 31951D remote


Check the remote control for its infra-red emission. Check it with fresh batteries. Check by pressing all the buttons on it; and see whether all of it generates infrared signal while pressing. If it is found OK, check and replace the infrared sensor inside the TV. If you wish to get some details; check the site linked here. It has details about how to check a remote control; by one among the post. Pull up older posts. If the remote control is found OK; check and replace the infra-red sensor inside the TV. Contact any service technician.
http://electro-medical.blogspot.com/

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50" LG Plasma Screen TV does not have any sound or activity on the screen.


input correct ? eg:HDMI 1 USE MANUAL TO GET INTO SETUP MODE.go through all settings.check the contrast and brightness buttons n the TV if any on back or top.

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2 Answers

Red exclamation point on verizon set top box


How to reset your Set Top Box to fix common problems FiOS TV Residential...
Resetting your Router and Set-Top Box can resolve a variety of issues such as:
  • Missing Interactive Media Guide (IMG) or On Demand menu
  • Unresponsive Set-Top Box
  • DVR recording problems
If you are having any of these issues, you may need to reset your Router and Set-Top Box. Will resetting my Set-Top Box erase the selections I have programmed into my remote?
No, all settings and selections you've entered such as device codes, favorite channels, and recent On Demand selections are saved and available after resetting your Set-Top Box.

Resetting your Router and Set-Top Box
Always reset your Router first and then check to see if that resolves the issue. Resetting your router may be all that is needed.
Important note about your router To avoid problems with your FiOS TV service, make sure your router is plugged in and turned on at all times. Even if you are not currently using the Internet, your router still needs be turned on so that FiOS TV can function properly.
To manually reset your router:
  1. Unplug the power cord to your Router for 15 seconds and then plug it back into the electrical outlet.
  2. Wait 30 seconds and then check to see if this resolves the trouble. If you still have the problem, follow the steps below to reset your Set-Top Box.
To manually reset your Set-Top Box:
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    Note: Don't confuse the power cord that provides electricity to your Set-Top Box with the coaxial cable that is connected to the back of your Set-Top Box. Unplugging the coaxial cable will not reset your Set-Top Box. Since many issues can occur if your coaxial cable is not securely fastened, now would be a good time to check to ensure all connections are securely connected.
  2. Wait for the time to appear on the front of the Set-Top Box, then power it on.
  3. Wait several minutes while the Interactive Media Guide updates.
  4. Check to see if this resolves the trouble. If you still have the problem, your Set-Top Box may need to be re-initialized. Contact the Fiber Solutions Customer Support for further assistance.
I have to reset my Set-Top Box frequently, is this normal?
No, if you routinely have to reset your Set-Top Box more than three times a week, it is likely there is an issue with your Set-Top Box that needs to be resolved. Contact the Fiber Solutions Customer Support for further assistance.


also you can call for tech support at Dial 1-800-VERIZON (1-800-837-4966)

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My panasonic DMR-EZ45V will not auto -setup restart the dvb freeview channels it goes through the channel numbers but they do not download only the anologue channels download. it is connected to a...


I have one of these with the same problem. I couldn't find any others with answers but there are people giving answers about the DMR-EX75 showing the same problem due to power supply decoupling capacitor failure.
I just ordered a manual for mine from manualzone.com to try to locate the culprits. - Wish me luck!

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