Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: tv still dim after adjusting
sounds like you may have gotten a pwer surge and blew out the regulator in the set. If you know how to trouble shoot regulator curcuitds then it could be as simple as the str type regulator. If you dont then open the set and see what module the set has it would start with a 9-something as it should be inside the back cover and then contact http://www.tristatemodule.com and see what they charge to repair the entire pcb or the exchange of the module. As Zenith sets are made to be repaired in house by quilifyed repair stations IN hOUSE. Good luck to ya.
Posted on Apr 27, 2006
SOURCE: Sony LCD TV has Dark Picture
the problem is not the lamp.
This model has a set of two backlight lamps, and it is practically impossible that both lamps go faulty at the same time.
When the backlight lap in an LCD TV goes off in this way, the faulty part is always the backlight inverter, that is the high voltage board powering the lamp.
In your case you have to get the TV inverter booard replaced.
Posted on May 30, 2009
You could have a faulty inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
for parts, repair service and DIY info.
Posted on Jun 25, 2009
Hi,It sounds like a light engine problem Sony is having.Basically the light of the lamp goes through tunnels that have mirrors that direct the lamp to 3 main LCD chips,These 3 LCD chips are blue,green, and red they blend to create the image and colors.When they start to fail you'll get color discoloration like what you are getting.You will need to replace the optical block because unfortunately they don't sell the LCD chips by themselves.GOD BLESS YOU!
Posted on Oct 06, 2009
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