Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

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TV turns off after a few moments but come back on again after a few seconds

For several months the TV has been working correctly but occationally it will turn off but then come back on after several seconds.
Now it turns off striaght away but still keeps coming back on and then off again.

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Remove the lamp and check to see if the connections of the lamp and the lamp driver(ballast) are ok or they look bit burned.Also the lamp should always be replaced first especially if is two years old or more.
Check to see how many times the error indicator flashes.If it flashes 5 times then the lamp driver is probably defective.
common problems are lamp and lamp driver(ballast).
let me know if you need more help.
Good luck.

Posted on Sep 22, 2008

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Tv turns on then off after a few seconds. No picture or sound in these few seconds.


Try this and let me know what you find:


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} MOST OF THESE SETS HAVE A SELF DIAGNOSTIC:

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PRESS AND HOLD “device” and “menu” buttons on front of tv for at least 5 seconds and then release both together.


Watch for power light to blink in a sequence:

1 blink-then 2 blinks-------no error

2 blink-then 1 blink-------X-ray protection

2 blink-then 2 blink-------SHORT PROTECTION*******

2 blink-then 3 blink---------deflection circuit problem

2 blink-then 4 blink---------vertical circuit problem


******2, then 2 is most common---usually means one of the fuses that protect the Convergence IC or IC’s is blown---set will detect no voltage to convergence IC and shut down.


SET WILL REPEAT BLINK ERROR CODE UP TO 5 TIMES AND THEN TO GET IT TO REPEAT MORE YOU HAVE TO UNPLUG SET AND TRY TO TURN ON AGAIN.


IF IT IS 2 AND THEN 2---USUALLY
CONVERGENCE CIRCUIT PROBLEM

let me know what you find--hope that you find 2 blinks, a pause and two blinks--this is the most common and easiest to fix.

if this has helped you rate this solution as I do this here for free.

SD TECH

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