Question about Sony KP-57WS500 57" Rear Projection Television

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Blue light on black screen

Do we need to replace globe or TV if blue lights are stating to break thruogh in the balck screen

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IT SOUNDS LIKE YOU HAVE A BAD CRT OR DRIVE IC
EST $350.00 -$1300
30 YR SERVICER
APGONZO

Posted on Jan 12, 2009

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Posted on Jan 02, 2017

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Why does it turn from blue to black after 10 sec.?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.

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1 Answer

Blank screen with blue light


Hello
Check the backlight inverter board to your TV. This is a common fault for most of the LCD TVs. If it is faulty, the backlight won't light up, resulting a balck screen with sound.
This is the picture of the backlight inverter board to your TV. OK.12_23_2011_4_29_45_am.jpg

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I instaled a timer Leviton 5-10-15-30 to the bathroom fan. I put everything in the correct place, balck with black, blue with the black that goes to the fan, white with withe and green to the ground. The...


1) To test the timer, put it on another Load, for example a light.

2) Also you can test your wires.
Take wire nut off Black-black connection and test to bare ground >>> tester should light up.
Next take wire nut off Black-blue connection and test to bare ground >>> tester should NOT light up until push button is activated and countdown begins.

3) Another thing to try is reversing the blue and black wire, just to double check your wiring.

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1 Answer

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Under a year old tv?This tv have power supply problems.Call the for warrenty repair.Or tries websites like shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

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first you need to check the easiest thing, the rear light globe. replace the light bulb. if still not working, check fuses,, then you also have a front and rear brake lamp switches. Most likely it's just your rear light globe. easy fix!

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Hi , it seems you are experimenting a light engine problem.Here's how your tv works: http://www.youtube.com/watch?v=ZLLHnQ4y-wo Basically there's 3 LCD chips that create the colors and image by blending together.When these chips start to melt you will get those blue spots, pixilation even vertical lines.You will need to replace the light engine. Have a blessed one!

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2 Answers

Tv screen stays black with the blue light and two red lights blinking


I have the same problem, if anyone has a solution PLEASE mail me at macry2121@aol.com

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