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

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Sony KV-34HS420 Random Shut downs

Why does my TV randomly turn off? When it does, the LED (standby) blinks 7 times. Anything that can be done???? RED LIGHT/STAND BY BLINKING COMES ON THEN SHUTS OFF

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I would say this is a internal problem how long have you had it?

Posted on May 28, 2009

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Our tv turns off as soon as we turn it on. the red light blinks 7 times


Seven blinks = High voltage shutdown (overcurrent protection). The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits, otherwise send the TV to a workshop for a quote on likely parts and labour costs, then make a decision afterwards about whether it is economical to repair or not.

Usually it is either the flyback transformer, the tuning capacitors in the collector circuit of the horizontal output transistor(s) as well as the transistor(s) which could be faulty. These parts should be replaced at the same time.

Short-circuit horizontal output stage - hence the 7 blinks error code from the standby LED.

Mar 19, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

KV-36XBR400 won't turn on, "standby/stero" light


You are correct. You are right about the power supply and replacing with led hdtv. You will be happy with a Samsung led. Time to upgrade.

Mar 04, 2011 | Sony KV-36XBR400 36" TV

1 Answer

Red LED light blinks 7 times when the set is turned on; no pictur


if you have the circuit diagram of your tv,check the horizontal polarisation IC closer to the line transformer and replace it.If it doesn't work,send the question again.

Sep 22, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Sony mod# KV-34HS420 - won't come on - red led blinks 7 times...


how many times does the light blink it is very important you mention it so that i can be able to help you.if it is blinking continously then that means your jungle ic301 the ik video path is defected have a tech look on your set for repairs,good luck

Jul 12, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

TV won't turn on, standby LED starts blinking


HI, this is the result of an unstable power sector in this unit. the fly back is malfunctioning and, you will need to replace it asap. i will list the part number below and a link to a site as well. you can purchase this part on-line if you wish.

FBT ASSY NX-4521//X4
Sony Part Number: 1-453-310-11

CLICK HERE TO ORDER

Jun 21, 2009 | Sony FD Trinitron WEGA KV-27FS120 27" TV

2 Answers

Sony KV-34HS420 Random Shut downs


normally this is because of a failed capacitor or two that is located on the power supply board. replacing the power board in this unit will fix this issue.

Mar 16, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Standby LED blinking 6 or 7 times and TV won't turn on


That is an error code that tells the tech where the problem lies. It is probably somewhere in the power supply stage. Your best bet is to take it to a TV repair shoppe and let them deal with it. They have all the documentation in order to repair the unit, and they can tell you what the problem is before they work on it.

Cheers

Jan 02, 2009 | Sony FD Trinitron WEGA KV-34HS420 34" TV

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Sony FD Trinitron WEGA Standby Light Blinks, TV Does Not Turn On


Sony FD Trinition Wega KV-32HS510 Try to turn tv on -it starts then shuts off -stand by lights keeps flashing. Memory stick light flashes then goes off.

Nov 29, 2008 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Random Turn-Off on KV-34HS420


Hello there,
7 times blinks shows that Horizontal Deflection Circuit doesn't work properly.
I think, its not big fault and can be resolve in low cost at nearest Sony repair shop.

Feb 18, 2008 | Sony FD Trinitron WEGA KV-34HS420 34" TV

3 Answers

Blinking Standby Light


KV32hs500 tv won't turn on. Standby light blinks 7 times, stops and then 7 more times, etc.. The tv will usually come on after about 2 hours or so of being off. Plays fine when on but once it gets turned off the problem happens again. Any suggestions? T.V. is 5 years old.
I have a similar problem . mine blinks 6 times or 7 sometimes also,and comes on with sound ,no picture for about 2 seconds then shuts off. Anything?

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