Question about Sony KP-46WT520 46" Rear Projection HDTV-Ready Television

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Standby light flashes ten times,when you try to power on the unit you get sound but no picture for about fifteen seconds then it powers off

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Your Television needs repair, 10 times blinks is a failure on high voltage section. If you have basic knowledge in electronics you can fix it, just simply replace the PWM generator IC MCZ3001d (near fly-back transformer.) or look for a electronics technician to fix it.

Posted on Nov 15, 2010

  • Josias Aleixo
    Josias Aleixo Apr 12, 2011

    Hi my name is Aleixo, I have on my bench one Sony rear projection Tv model: KP-46WT520. I'm sorry my English, try if you understend my explanation. Thank you
    I plugegd the Tv in outlat nothin happend, then I pushed the power botton, the relay click to turn the Tv on and estart those frist slow 10 blink, in 4 blinks start the sound but no high voltage, the Tv still working sound with no picture until finish those frist slow 10 blink. then those frist 10 slow blinks stop for 5seconds then the relay click again shuting down Tv, and start the error code witgh 10 fast blinks with pause contynuosly.This mean the horizontal shorted, but eventhin ok because sadenly the Tv working fine. Now, if I pushed the power botton again with Tv blinking 10 with pause and 10 blincks, it repit all again, click relay folowing 10 slow blinks, in 4 blinks sound no picture, when finish those 10 slow blink, pause 5 secounds and start the error code with those fast 5 blinks pause 5 blinks continuosly. Those 5 blinks mean CRT board problem, but sadenly it wor fine with no problem. I did check and no found the problem. I need help

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Unplugged the unit the power outlet for about 60 sec.Then power it on again. If you have surge strip along the line. You should directly switch in on power outlet only. If this doesn't help.

As the relay is working you have power in standby mode. Check its supply voltages if its ok. Secondly you can check the the B+ supply it is in DC, If this is a crt type tv, check its horizontal output transistor, Check its flyback for short circuit. Capacitor near to it rated almost 800V, and deflection coil.

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