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I have Sony tv kv-bt21m50 when the power is on the led only blink and showed green color on power led

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These blinks are fault indication. Count the number of blinks occur at one time switch ON. Make it confirm, after two or more switch On/Off. From the number of these blinks, you can get an idea about the faulty circuit section inside the TV. These blinks are technically called, blinking codes. If you wish to get more details about these blinking codes, check the site linked here. It has details to blinking codes to many brand TVs including Sony.http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

Posted on Jul 18, 2013

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Posted on Jan 02, 2017

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SOURCE: standart television

How to change TV setting to video mode so I can connect a VCR/DVD combo player.

Posted on Mar 25, 2008

SOURCE: Sony KV-32FS120 blinks 4 times

good day.
Have you tried first resoldering the terminals in the circuitry?
Also, try to check for the ABL supply near the flyback. Watch out for the small voltage zener diodes.


response is highly appreciated.


chris

Posted on Mar 28, 2008

  • 121 Answers

SOURCE: Sony Fd Trinitron KV-32FX68E, stanby led blinks twice

odds are power supply module 150 200 repair

Posted on Dec 01, 2008

daniel719
  • 240 Answers

SOURCE: Sony FD Trinitron WEGA KV-30XBR910 30" TV Led flashing

6 blinks meens no horizontal and no raster check capasitor c515/c516/ jungle IC and IC206.
regards,
daniel.

Posted on Jan 13, 2009

localwonder
  • 6784 Answers

SOURCE: 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

Posted on Jun 21, 2009

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Hi,
4 blink of power led shows problem in vertical deflection section and most probably vertical output IC is defective, replace it to fix the issue.
Regarding .rar file type of service manual files, download winrar software trail version from internet, install it and use it to unzip .rar file to get pdf manual file.
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Sony Wega KV-36FV16 Standby light blinks five times


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.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, [Exclude the model number] in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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Sony TV Model Number: KV-27FS100L No Power 1. Stand By LED Blinking Three Blinks No PowerIntermittent. 2. Stand By LED Blinking Three Blinks No Power Intermittent. 3. Stand By LED Blinking Two Blinks No...


Try using another power outlet, if you are using a power distribution board then try plugging the TV directly into a wall socket. If using an extension cord then try with another cord. It also maybe that the factory lead that came with the TV is faulty, any of these problems may be restricting the correct amount of amperage required by the TV unit to operate.

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