If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
SOURCE: Sony Bravia TV automtaically goes on standby.
Probably the main board. This has a 1 year mfc parts and lobor warr. I would contact Sony for the nearest auth servicer. If you open it you will void the warranty.
SOURCE: i have a sony bravia model # kdl-40s4100 40 in
If you have the led light on, then you need to replace the mainboard.
If no led light then replace the powerboard.
SOURCE: SONY BRAVIA KDL-40s4100 is not working right
Please check whether the connections are secured between the TV and the connected devices.
If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
Try connecting the TV to a different wall outlet and check if that helps.
Please connect a different device to the TV and check whether the issue persists.
If the issue still persists service of the TV is determined.
SOURCE: My Bravia KDL-40S4100 lost all 3 of it's HDMI
There is a problem with the processor. The only way to resolve this issue is to replace the main board. It is called the A board in your TV.
There are two for this model and the correct one will depend on what your serial number is.
Part numbers are as follows:
part # 185709211 for Serial #
1,000,001 - 1,350,000
1,700,001 - 1,750,000
1,800,001 - 1,804,270
1,804,271 - 1,818,372
1,818,373 - 1,830,000
list price: $504.87 core charge: $680.00
part # 185709231 for all other serial numbers
list price: $505.87 core charge: $600.00
Testimonial: "Thanks, Now I wonder who all shares the same problem and if Sony is willing to do something about their defective products..."
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