Sony KF50XBR800



I am presently repairing the above Sony projection TV. Whenit is turned
on it will come on perfectly but after about two to three min. it will
cut off the stand bye light blinks the same as when the set is first
turned on,not in any paticular sequence and then the set turns back on.
This will continue untill the set is turned off.The fault finding menue
does not show any type of fault.

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