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Sony Trinitron kv-2966 tv will not start ,no standby light,makes start up noise high pitch.

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Have you checked your curcuit bord??? Usually it means that the tube is blown out unless its a LCD Tv then I don't know that much about , sorry.

Posted on May 03, 2008

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Turn off tv and check all connections and unplug it from power supply. make sure that everything is connected tightly on the back of tv( cables and stuff) turn it back on, if you see a red flashing light or red solid light, chances are there might be a problem on the capacitor or wirings inside it.

Posted on May 03, 2008

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1 Answer

Sony trinitron 32 inch television model no. KV-32FS13 doesnt have any video nor audio and standby light just blinks about 4 times


Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check for any loose sodering points at the vertical output section.

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Why does my sony trinitron makes a high pitch noise when on and/or off ?


It's the flyback transformer. Check for bad connections on the flyback and on horizontal output circuit.

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High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

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1 Answer

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Hi there,

Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

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"High Pitch Squealing" from my tv.


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And yes this is worth fixing , shouldn't be to bad on the cost of the repair

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1 Answer

Sony trinitron KV-27FS100


probably, you have to call for a technician to check for it, the switch of the tv might have some dis alignment of cables

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1 Answer

Sony kv-30xbr910 my tv won't turn on and the standby fashes 7 times


Good day.
Your unit has issues with the high voltage section. Particularly the vertical and horizontal sections. Blinking lights indicates that your flyback is not osscilating to distribute the supply to the sections. Please have it checked by a repaiman.

chris

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1 Answer

High pitch sound for Sony FD Trinitron WEGA KV-27HS420 27" TV


The high pitch squeal you hear is usually caused by a coil vibrating, normally in the horizontal circuit. I've also seen the ferrite bead on the horizontal output transistor do this, but, it is rare. I normally will repair this by finding the coil and "tightening" it. To tighten a coil, technicians use different chemicals, such as, a hot glue gun, rubber silicone or even finger nail polish. I will find the coil that screams by starting with the usual suspects and using a wooden dowel, barely touch the coil and if the pitch of the noise changes, then, thats the coil that needs repaired. If you do not know your way around the inside of a television, I never recommend you do so, since, this procedure must be done with the set turned on and you poke your hands around the inside of the set by the high voltage circuit. Hope this helps your decision.

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