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I switched on button of my Sony tv a bang noise came out from the tv. Standby light starts continue flashing what's the problem

Bad capacitor on board look for black or puffed out top

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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nfandres

Noel Andres

  • 168 Answers

SOURCE: Sony Vega Digital TV model KD-28DX50 U

the symptom is usually caused by a breakdown in the power supply circuit. in most modern receivers (transistorized and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (hor. oscillator, pre-drive, or drive circuits). supply voltages for the tuner, vif,sif, and vertical output are usually supplied by the horizontal output circuit. but if you doesnt know anything about these stuffs, better bring it to a qualified service technician

Posted on Jan 16, 2007

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welcomejee

Shahid Electronics

  • 10594 Answers

SOURCE: Pop sound, flashing standby light, blank screen

How many times this light flases in TV?

Posted on Aug 01, 2008

AMJAD HUSSAIN

  • 586 Answers

SOURCE: Standby indicator light on TV flashes - Sony TV

Hi,
    Please check fisrst that indicator liight (LED) blinks how many times.it could be from 1 to 8 times and the interval would be of three seconds.So, count the led flashes how many times and then tell me i will try my best to find and fix the solution.

Thanks 

Posted on Nov 19, 2008

Anonymous

  • 1 Answer

SOURCE: Sony Bravia LCD TV stand by red light flashes 13times

Really? Nobody has a better solution? I have the same problem and the tv's about a year old. That's it!
Crazy!

Posted on Jun 24, 2009

SD Tech

SD Tech

  • 14553 Answers

SOURCE: Standby light continuously flashes with no picture or sound

count the number of blinks; you may have to unplug the set and try to turn on again--if it does not blink in a sequence(3 blinks, a pause etc) the set is in shutdown and many things can cause this.

Posted on Aug 07, 2009

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When I press button to turn on my Sony 32 Sony Triniton TV, I hear clicking noise as if TV trying to come on, but it does not come on. The red light for Standby keeps flashing, but, TV does not come


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
If blinks continue without any pause, the main board is faulty.
Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any.


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There are particular blinks meaning on sony TV. I can give you the problem from your sony tv if you specify or count how times the LED flashed.

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Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
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count the number of blinks; you may have to unplug the set and try to turn on again--if it does not blink in a sequence(3 blinks, a pause etc) the set is in shutdown and many things can cause this.

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Are any of the buttons not making a click feel when you press them like maybe one is stuck?? You didnt say if the same thing happen with the radio as did with the cd. If it is then a switch is stuck or bad or a problem with the switch matrix for the Microprocesor . Only way to trouble shoot this is I would use a scope and check all of the matrix {ie scann lines as well as input lines for distortion or noise and make sure when the buttons are pussed that they change and switch accordinly. If they dont then the processors bad. Good luck

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