Question about Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

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My TV turns it self off after a few hour s of viewing

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  • Sony Master
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Hi.

The most common problem that causes shut down after few hours is overheating. Overheating however does not necessarily occurr because a faun is broken or because a thermistor is defective. A devective IC may fail and overheat on its own. The fault won't be even called overheating in some case.

The TV must be taken apart and tested by a technician.

Common faults to be tested are:

Fans and tehrmistors.
Convergence ICs.
Ballast.
PSU.
There are also a couple of test point on main controller board to be tested.

Regards.

Ginko.

Posted on Nov 09, 2010

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Turn off after a few hours


If the TV turn itself off then perform the following steps:

(i) Check if the Sleep timer is activated.

(ii) Check if the Parental Guide prohibits viewing during that time and/or limits amount of viewing time per day.

(iii) Check the batteries on your remote, low battery power may cause random signals from the remote.

(iv) Disconnect all the cables from the TV then reconnect them after a few hours.

(v) Ensure the power cord from the TV is directly connected to a functional wall outlet.

(vi) You may also try resetting the TV to the original factory settings by pressing the Reset button on the remote control supplied with the TV when in Menu.

The following is the information indicated by the blinking patter of the standby/timer lamp on the TV:

2 times : Power does not come on.
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3 times : The TV has entered standby mode.

4 times : Has entered standby state after
horizontal raster.
Vertical deflection pulse is
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5 times: No raster is generated.
CRT Cathode current detection
reference pulse output is small.

6 times: No picture

9 times : No sound

Furthermore, the TV is equipped with a self-diagnosis function that you can use to determine whether the issue is related to any hardware malfunctioning. Perform the step given below to run self diagnosis:

Quickly press the remote command button in the following order from the standby state.

Display -------> Channel 5 ---------> Volume -(minus) --------> Power ON.

If the Self Diagnosis display numeral "1" for any parameters then a fault has been detected and service will be required.



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