I have Sony KLV- 37S400A the screen is so bright and the picture looks faded

SOURCE: Bravia KLV-S40A10 HDMI input

I agree with your solution and you are correct in that you lose very little quality by using component instead of HDMI. there are A/V receivers that transcode HDMI inputs to component; as far as I know that's the only other option

SOURCE: Sony KLV-S32A10

the part number for the B board is A1148426A, there is a newer version A1148426E, I checked the internet and I found one here:
http://www.shopjimmy.com/showparts.cfm?item=378903&ps=3789&pn=3
This part is a "pull", meaning it was used at some time and removed from a unit that was likely damaged and not worth repairing. At around $70, it's a bargain; the going rate is around $170-180. If you are handy with tools and take your time you should be able to replace it yourself. Good luck and be sure to rate this oslution.
Thanks!

SOURCE: sony pfm 42b1 negative picture

Hi,

I have a Sony PFM-42v1 and it does the same thing, look in your tv menu for picture inversion, usually under screen saver. What it actually does is reduce the chance of screen burnin. By reversing the image it sort of resets the hot areas, brightest colours and the cooler areas being dark colours, switches them around ( negative ). This cools the hot spots and heats up the cold spots.

There should be a option to turn it off, mine and I guess yours as a default is ON, mine has the ON, timer and OFF options.

Hope this helps, please let me know if you need more info.

russell

SOURCE: smudge looking marks onscreen

If you suddenly noticed it, this is most likely caused by a large piece of dust on the lens. It is hard to clean, you would need to take the whole TV apart in order to get to the lens (mounted on the optical block).

It could also be caused by a failure of the optical block, which had inherent issues. There is a pending class action law suit against Sony for problems with optical block that include smudges, hazes, and tints that appear after a certain number of hours.

Other causes could be a dirty portion of the mirror or a smudge on the inside part of the screen but these are rare because dust and contaminants do not usually accumulate on these parts of the TV.

SOURCE: SONY KLV-40U100M LCD TV will not power up. looking

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