Question about Sony KF-50XBR800

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Tv won't turn on.

Standby light stays on, but it doesn't turn on.

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  • Sony Master
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It sounds that the main board if faulty. If you wish to get more details, check this site. Pull up older posts there. Check the site with patience, as it has over 2350 posts now. All are related to electronic equipment repair help. Search the site by 'Timeslide' option. It will make search easy.

Posted on Apr 22, 2013


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Posted on Jan 02, 2017

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SOURCE: Last week I had a

Hi,This is what I know.
Continuous Blinking: Not getting reply from IC301 Jungle IC, Bad "IK" video path, possible short to ground

One Blink: Not used

Two Blinks: B+ over current protect, short in power supply or HV circuit

Three Blinks: B+ over voltage protect: power supply short, check transistors, resistors etc.

Four Blinks: No Vertical Deflection, Check IC1509, Q1505

Five Blinks: AKB Circuit, Check Q705,Q732,Q761, on C board, also check Q218,Q219, Q220 on A board, IK circuit can also cause this try turning screen control up a little

Six Blinks:No Horizontal, No Raster, checkC515 C516, & Jungle IC,IC206

Seven Blinks: High Voltage Shutdown, Flyback, shutdown circuits/components

Eight Blinks: Audio Circuit, IC406, PS401, PS402

These Blink Codes are stored in the set and can be looked up to see what error codes have been stored, To pull up Diagnostic Screen push; Display, Channel, 5, Vol MINUS, then power, a screen should appear with the codes and number of times they have occured. Once the set has been repaired the ERROR CODES have to be removed by the tech, clearing is done by going into the service mode; display,channel,5,volume PLUS, power. Press 8 then Enter everything returns to the factory preset condition.

Posted on May 26, 2011

  • 8617 Answers

SOURCE: tv is on 'stand by'

I will need the model number of the set and also need to know if the led blinks. If so how many blinks does it blink?

Posted on May 29, 2011

  • 74383 Answers

SOURCE: 51 Sony wega won't turn on standby light just

Blinking of standby light are fault indications. To get more details about this fault, vist this site. Type in the site name, either to Google or Yahoo search box and click search. The site is powered by Google. site name is "Electro-help"
Click open the same named site with a hyphen in between words. It is an electronic repair help site.

Posted on May 12, 2012

SD Tech
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SOURCE: my Sony wega tv won't turn on goes into standby red light blinks 10 times then shuts off?

Look at the owner manual as the 10 blinks is a error code or Google the model number to locate that information--Sony error codes are general and often misleading.

I would if looking at the set inspect the lamp first.

Posted on Aug 29, 2012

SD Tech
  • 14553 Answers

SOURCE: Toshiba TV won't turn on

Toshiba? Suspect that if it uses a Lamp for brightness (a model number would help) it may have failed----customer replaceable and if remove look to see it is not shattered inside--2 year, 2000 hour life is normal.

Posted on Oct 30, 2012

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