Question about Sony KV-36XBR450 36" TV

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Kv-36xbr450 picture freezes or wiggles

When watching TV after several minutes the picture does one of 2 things: 1) gets unstable and wiggles slightly or 2) the top half will freeze, the bottom half will go black. Both symptoms do not have any adverse effect on the audio. Power cycle the TV will solve problem #2, but not #1 most times.

Please help.

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  • Sony Master
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Check the cables going in and out of the tcon board if that doesn't fix it replace that board

Posted on Nov 26, 2017

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Posted on Jan 02, 2017

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SOURCE: KV-36XBR450, FD Trinitron WEGA

Hello maymet,

This sounds like the HV protection circuit is cutting off the TV due to a high current event in the set. This could be a problem in the High Voltage section of your TV (Horizontal output transistor, Integrated High Voltage Transformer, and y of the deflection components, and or the CRT in cases of shorts).

I would suggest that if you do not have a background in electronics, you should have an experienced TV technician troubleshoot and repair this problem.
This is due to the nature of the dangerous voltages that are present in the television.

I hope this helps,

Thank you,

Shuttle83

Posted on Nov 23, 2008

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1 Answer

Sony kv-36xbr450 36


breakdown in the horizontal, check the c515, c516 and the jungle ic IC206 which get bad.

Oct 27, 2012 | Sony KV-36XBR450 36" TV

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Sony KV-36XBR450 seems to turn on but screen slightly pops white around edges but immediately goes all black and will not show a picture.


Hi,
According to the symptom the problem seems that the high voltage cap is loose and not plugged properly. For your convenience see the below pic and reset it. The number 11 is the target component in pic. Hope this will solve your problem.
75f7117.jpg

a977f5d.jpg

Note: This component has a high voltage, please don't forget safety measures.
Thanks for using fixya.

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Picture is wiggling. Like waves.


the power supply has variations meaning your supply is not constant, it is not giving the same outputs voltages.
plse check the following
capacitors which have changed values
semi conductors which are leaking.
thanks for trusting fixya.

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This sounds like you might of lost one of the colors of the crt. I would suggest that you take to a repair shop.

Jun 27, 2008 | Sony KV-36XBR450 36" TV

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Slight bowing of picture


Only on newer TV's, yours (I dont think)has the adjustment, if it does it would be in the menu area.

Apr 22, 2008 | Sony KV-36XBR450 36" TV

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Most probably,the secondary power output of your TV's switching power supply is not functioning.You have to trouble shoot the secondary power which also leads to HT supply in the Horizontal circuitry.

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No picture but has sound


hello .this does sound like bad solder joints .all printed circuit boards do this after a while due to heating and cooling .is not advisable to try to repair yourself .possible electric shock and spiking .will do a lot of damage .take to a shop to have repaired

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Channel jumping


Sounds like the PIP feature is causing the problem with the TV if you are connected directly to cable TV without a box inline and getting these issues.

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1 Answer

Half a picture


Dont use the set and call a service tech,you might have loose conections in the horizontal circuit,if you keep using it for this problem it might become worst.

Aug 29, 2006 | Sony KV-36XBR450 36" TV

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