Cw40t8gw red backlight all the time - Westinghouse Televison & Video

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Channel access is only via cable, satellite or streaming. Channels don't come from the television.

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HI Ray....unhook the plug going from the power to main board and see if you get backlights when you plug the set in, if you do chances are you have a bad replacement main

Model cw40t8gw need 5 digits access code

According to the service manual page 6. four flashes is "Backlight Trouble" so if its the light it self or Backlight Inverter Board i cannot tell you.

Service manual can be downloadet here.
http://elektrotanya.com/sony_klv-26s200a_klv-32s200a_klv-40s200a_klv-46s200a_chassis_wax2.pdf/download.html

Need code :VR-4090
6530173500349
Exploraci?n de canales ATSC

There is one CCFL lamp on the bottom edge of the LCD screen.
You may have a faulty inverter or loose power inverter connection. OR
You may have a 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.
Check out
www.lcdparts.net

I would suspect one or more of the miniature flourescent backlight lamps. One way to confirm this would be to power up the set with a grayscale image at 40 to 60 IRE. If one or more lamps is failing to light, a slightly darker horizontal area in the grayscale will give it away. Unfortunately, Sony will not supply any of the backlight components apart from a new LCD panel. Sorry.

You could have a faulty inverter or a CCFL lamp, 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.
Check out
www.lcdparts.net
for parts, repair service and DIY info.

Pp. 16-17 of your user's manual:
http://www.rcapearl.com/pdf/TH11xx_IB.pdf

Settings
Press forward to enter the Settings menu and then
press plus or minus or to highlight an item. Press play
repeatedly to change settings.
Backlight:
• to adjust the time before the display light
turns off (On/10s/20s/30s).
• to adjust the color of the display light
(Red/Blue/Green/Yellow/Cyan/Purple/White).

-Tha Mp3 Doctor

A 4 flash indicates you have a backlight problem. Either the backlight inverter boards have failed or you have a backlight that has failed in the LCD panel. You will need a technician to check the set to determine which is the problem.