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Sony KV-21APV2 Good day.. I'm servicing this TV model...B+ is normal 115V without Horizontal output transistor,,but when i put this H.out transistor, regulator(str50115) becomes shorted,R2M diode shorted,and the N20 is open.... Whats the original No. of its flyback?is it 1-439-416? please send reply in my email... ihodiputah_510@yahoo.com Thank you.

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5 Suggested Answers

SOURCE: Standby relay clicks on and off

Hi there!
I do not have the specs on your TV but this is standard on all TVs. Only different numbers. The Line or Flyback transistor is located next to the Flyback Transformer, usually mounted on a Big Heatsink. When removed and measured you should read a short between Base and Emitter on the Transistor itself. This is an internal Diode on the Package. Now make sure not to short anything when switching the TV on without the Transistor and then measure your Voltage on the board where the Transistor had been removed( between Base and Collector) 145V. Good Luck,JUS004

Posted on Mar 11, 2008

  • 275 Answers

SOURCE: sony tv H.O.T

Yup. Can be replaced with a simple BU 208D

Posted on Apr 09, 2008

ladywinn
  • 5138 Answers

SOURCE: Replaced Flyback Transformer and Horizontal Output Transistor

I am proud to see you got your set working Good job!

Posted on Aug 26, 2008

romsky79
  • 822 Answers

SOURCE: sony tv KV-27FS120, blinks 6 times, horizontal transistor is good, and driver to, can you help me?

check the memory.

Posted on May 31, 2009

  • 1 Answer

SOURCE: find a horizontal output transistor or flyback

Flyback transformer part number for a tv RCA F32648

Posted on Aug 30, 2010

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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. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences of the author of that site.

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Hello

The horizontal output transistor number for Sony KV-ES34M61

Horizontal output - [Q6807] == 2SC5480-01
Pin output - [Q6808] == 2SC5480-01 Again

Please replace bothe the transistor at the same time. Check horizontal output transformer [LOT of HOT], for any defects.. Ok

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My sony KV32 FX65B trinitron stopped working.. i took it to a technician and he said i needed to replace the FBT (fly back transformer) along with two transistors. I just replaced them and when i start...


When it is shifted to right vice versa, it indicates a distortion on the horizontal output. Try replacing all the capacitors around the horizontal output area with the same original value. Make sure the horizontal output transistors you replace hasn't started going gone bad already if you know how to check them. Them dimness in the picture is caused by the horizontal output not putting enough high voltage to the CRT. Look for leaking capacitors too. Also replace the resistors around the horizontal output, they may have burnt out or changed in value from overloading cause by the malfunction of the flyback, and the transistor.

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Hello,

The 2X blink indicates that either the Horizontal output transistor is shorted, or the RGB amp is shorted (on the CV board).

The Horizontal output is probably the cause, and as a general rule, the flyback should be replaced along with the H-Out transistor. Good news is that Sony is pretty good about having parts in stock. In fact, a lot of times they will have the A board with all the parts on it for only a few bucks more than just the flyback, so you basically get a new TV (electronics-wise).

Any decent repair shop should help get the parts/do the repair for you if you don't have the electronic experience.

Hope this helps you...

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1 Answer

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There are many possibilities like dry solder joints, weak capacitors, Horizontal transistor short or flyback transformer fried etc.

If you have little experience of TV repair and good solder skills and have necessary tools to test / check defective parts, then you can make it. you also need to have related service manual to see board location, schematics and part numbers.


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1 Answer

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Probably a defective horizontal output transformer , also check the horizontal output transistor. Both parts available from tritronicsinc.com

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1 Answer

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1 Answer

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