Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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Sony TV turns itself off

On the front of my Song Wega is a small red light that reads "Stand By/ Tuner".  It began to flash repeatedly.  Now when I turn my TV on, I hear the volume and the picture is about to appear then it turns itself off after a few seconds.  I am connected to a Direct TV line with an older tuner but I have had no problems prior to this one.

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Hi and welcome to FixYa,

Initially, the flashing indicates that the Sony KV-34HS420 has kicked in into protective mode. this is because the built-in diagnostics has sensed that a fault exists and turned the unit OFF to prevent further damaged. Normally, the flashing would be of a certain number/sequence. This number of blinks corresponds to an error code that would point to the general area of fault. Pls determine the number of flash/blinks or the sequence and post back.

This page may give you an idea on some of Sony's blink codes.

Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 22, 2008

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Unplug all the connections from the back of the tv for some time and also dosconnect the tv power wire from the mains for some time and reconnect it.and check out.if still the problem.then it could be the problem of main board in that any of the component getting over heated and the unit gets shutoff.that component has to be checked on the main board with a meter and replaced to make it proper.

Posted on Dec 21, 2008

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TV WONT COME ON AND THE LIGHT KEEPS FLASHIN RED AN GREEN ON THE STANDBY BUTTON


  1. If your Sony Wega will not turn on, the front green light blinks, you hear a faint whirring sound and the green light turns red and flashes, it probably means the lamp inside the set is no longer working. If you noticed the screen beginning to dim in the preceding days or weeks, this most likely is the cause.

  2. If the green light flashes and the picture comes on momentarily but then goes off, and the green button flashes until the set restarts, then the seal around the lamp mount is loose and needs to be refitted.

  3. If the picture on your Grand Wega cuts in and out and the green standby light flashes, both of the set's STKs need to be replaced. STKs are small chips on your television's circuit boards and are identifiable by their labels. The specific STKs used in your Grand Wega TV will be identifiable by the numbered labels on top of the STKs.

  4. When you plug in your Sony Wega and hear a loud popping sound, it's probably caused by a defect in the high-voltage circuit. Let the professionals take care of this one.

  5. If, after turning on your Sony Wega, you can hear your set but the screen is black, you most likely need to replace your projection lamp.



Read more: How to Troubleshoot a Sony Grand Wega ' eHow.com http://www.ehow.com/how_5243554_troubleshoot-sony-grand-wega.html#ixzz1EoY37gpC

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