Hey,, TV's pictures do have a "shelf life"... he said usually around 150,000 hours..I did not know this until the "guy" at best buy let me in on the secret...now, i always turn the TV off no matter when or how long I am going to be gone..
SOURCE: KDF-60XS955 Replaced Lamp. Slight discolor
Dont know if this is the same problem your having or not.
2003-2004 Model Year Grand WEGA Televisions:
Models:
KF-42WE610, KF-50WE610, KF-60WE610, KDF-70XBR950, KDF-60XBR950,
KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955,
KDF-60XS955, KF-42WE620, and KF-50WE620.
As technology
evolves, Sony continually looks to stand behind the reliability of its
televisions. It has come to our attention that a very limited number of
televisions manufactured between 2003-2005, after a period of time
exhibit a stationary scribble / random line pattern on the screen.
Click here to see photos of this symptom.
As
part of our commitment to quality, Sony is announcing that for any
owner of this model television who paid out-of pocket expenses on or
before May 26, 2006 for an estimate or repair service to replace the
optical block for this specific issue, Sony will reimburse the customer
by mail for his/her parts and labor expenses. To receive reimbursement,
please follow completely the directions and terms on the claim form for reimbursement; all claims must be postmarked by May 31, 2007.
In
addition, for any customer who later experiences this issue on one of
the affected models, Sony will cover the cost of the optical block
repair at no charge through September 30, 2007. All other terms of the
Sony limited warranty continue to apply.
SOURCE: power supply block/lamp issues
Try cleaning the air filter I have seen the same symptons as your describing, and cleaning the air filter corrected the problem.
SOURCE: Sony KDF-46E2000 - Screen Goes Blank
You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance:
1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours
2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris.
3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle
Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!
SOURCE: screen fades occasionally. Perfetc and them fades
Make sure that in the settings that your TV isn't setup to auto dim. I remember I had a similar problem. I think when ever a light would turn on or someone would walk near the TV it would get dim. It was really annoying. Check your settings. Good luck
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