Question about Sony KDF-E55A20 55 in. LCD Television

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55" TV keeps shutting off automatically

My 55" Sony Wega TV, KDF-E55A20, keeps shutting itself off and turning back on automatically. The green power light stays lit the entire time, and never flashes. No red flashes either. When we're watching TV, it will suddenly shut off, has no pictures for 20-25 seconds (green power light stays lit the entire time, no flashing), then comes back on automatically, followed by audio a couple seconds later. This happens sometimes every 5 minutes, other times, I can go days without it happening. We've cleaned it thoroughly, taken the back off, cleaned it again, tightened everything...Please help...any suggestions?

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Green light flashes 5 and then red light flashes 6

Posted on Sep 28, 2009

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Posted on Jan 02, 2017

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Picture and sound goes in and out


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.

Apr 10, 2017 | Sony KDF-E55A20 55 in. LCD Television

1 Answer

My sony grand wega kdf e55a20 power light keeps blinking red. what can the problem be?


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3 Answers

Sony wega 55 inch tv turns on fine but after one minute tv shuts itself off and comes back on 40 seconds later by itself and this cycle continues - none of the error code lights blink


This kind of problem occurs when lamp becomes weak that means near to end of working life hours but still not dead nor broken.
Replacement of lamp in tv will solve your problem, lamp replacement procedure is easy and would be written in user manual.
Thanks.

Oct 30, 2010 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

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Hi,
Symptom shows Lamp is not working and either lamp or its drive board is bad that will be replaced.
Did you replaced lamp in tv recently?
If not, replace it. Lamp replacement procedure would be written in user manual.
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1 Answer

I have a sony Vega 55" kdf-e55a20, It is 3 years old, and now the picture and sound fade away for 10-15 sec every hour or so and comes back! Anyone knows what the problem is?


Hi,
Lamp is getting weak and TV shuts off and turns on itself because of weak lamp in TV that you see picture and sound fades away for some time until TV reboots.
Replace lamp in TV to solve this issue. Lamp replacement procedure is written in user manual and its an easy work.
Please buy Sony original lamp for your Tv safety.
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I have a Sony Model # KDF-E55A20 HD Television. I


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1 Answer

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Probably lamp. usually powersupply will give the first click but not the second to power up the lamp. there is no horizontal fix for that type of tv

Jun 02, 2009 | Sony KDF-E55A20 55 in. LCD Television

1 Answer

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Thats great that TV is working fine. How about rating solution as 4 blue diamonds?
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2 Answers

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Lamp is weak and TV needs new lamp.
Please buy original Sony Lamp for better performance of TV.

Jan 19, 2009 | Sony KDF-E55A20 55 in. LCD Television

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