Question about Sony FD Trinitron WEGA KV-36FS120 36" TV

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Sony 36" Trinitron

The TV requires several attempts before it will turn on with the button on the set or with the remote. How can I fix it?

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The power supply section is having trouble.
Common possibilities are:
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Posted on Feb 22, 2008

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Color setting for Sony XBR Trinitron 36" any settings


Hello
I thinks that you need to set its colour and other parameters, and posted this problem. If so there is adjustment at the first "Menu" option itself.
Press "Menu" button on your TVs remote control. You will see "Video" function as first selection on the screen. Use "Prog Up or Prog Down" keys to select and hilight the desired parameter. Use "Vol up or Vol down" keys to change it as your taste. That is all.
Normally the "Contrast should be more that 55% to 60% of its total value to get a clear and vivid picture. Colour and brightness are according your individual taste. Ok

If you wants to reset your TV to factory settings,
Turn on the TV.
Hold down "Reset" button on your remote handset and keep it pressed.
Press and release the power button on your TV front panel. the TV will turn itself off.
Release the "Reset key". Ok

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I have spent about 4 hours tonight researching several tech sites and the Sony service manual for the same problem with my Sony KV-32HS510 unit. I was able to download the manual from a website http://www.eserviceinfo.com/downloadsm/31649/Sony_KV-32HS510.html and a TV Repair training lecture paper at http://www.repairfaq.org/sam/tvfaq.htm#tvhvp .

These TV sets have a safety feature where it will shut back down if a high voltage is indicated. Unfortunately, the electronics for these safety features are not very reliable and give false indication. Letting the unit sit off lets the capacitors leak voltage as well as cool off. These two factor help with the unit not falsely indicating a high voltage condition.

The D Board seems to be the most common failure component, but a 6 times flash could be an overcurrent/voltage failure from the A, B, or M boards. A 7 times flash is a Horizontal Deflection Stopped error with no additional information given in the manual for a fix. Again, in most blogs, the D Board seemed to the source of the failures.

A refurbished D Board part no. A1300319A can be bought for around $200 with a new board at $550 per the www.partstore.com site. Then add $100-$200 for an actual TV service technician and you have a repair bill approaching the costs for a new flatscreen TV.

Some tech types posted that they have actually repaired their boards by replacing individual components for around $40. You may find a service shop that can do the same component level repair at the $100-$150 level cost. It turns out that the closest authorized Sony repair shop is 2-1/2 hours away from us. Good luck finding someone close by.

We were able to get our TV to come back on after dozens of attempts and plan to leave it on until it dies all together. I may attempt my own D Board replacement when the time comes.

Good luck!

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1 Answer

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If you are not a professional Electronics guy,it is beyond you to tackle this problem. otherwise log on to www.free service manuals.com and see the SONY Blink codes and also download the service manual.best of luck

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1 Answer

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Good day. There may have been some loose contacts particularly in the system IC. Have it resoldered.


chris

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1 Answer

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Some models require two buttons to be pressed together for menu access - usually at the bottom or side.

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Try a "hard reset"===unplug AC for a long time, like overnight.Let me know if there is any change.

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There's a setting in the menu. I think it's called "smart audio". It's supposed to adjust the volume automatically for commercials. But I don't think it works that well. Give that a try.

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