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

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36" sony trinitron

Ok , If I turn it off it don't come back on/ well maybe. I put a new CAP in the video board,re worked some joints that didn't look right. worked well for 3 weeks now sometimes when you turn it on it works ok sometimes not !!!!
no blink codes on the stand by, If I unplug it for say 10 min it comes back on/sometimes!!! when it dose it works well for a day or two then it's the samething where do i look next

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you have defective starting capacitor! that is located in power section! or in the H.O.T. Area.


Posted on Sep 19, 2008


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My sony wega trinitron 21 inch TV was showing a single colour when it turn on.sometime it will be full red and sometimes green and sometimes blue.

The fault with your TV is with some loose contact inside it. Normally most Trinitron TVs shows this problem due to loose contact in the video output card. Video output card is pluged diretly to the picture tube base, and can be detachable. You can pull it out very carefully without damaging the pins of of the picture tube. Most of the components in this board will heat up during working. Repeated heating and cooling will make the solder joints of the most heated components to get loose contacted. Normally, these loose contacts are very difficult to detect because they will be microscopic. Just do as what we do for this type of fault.
Resolder most of the suspected solder terminals, with applying a little more solder, without making any solder bridge in between the solder terminals. This will solve the problem of your TV. OK.

Jun 23, 2011 | Sony FD Trinitron WEGA KV-36HS500 36" TV

1 Answer

Sometimes picture is good,other times no picture at all

There is an intermittent problem in the video stage of the circuit board, probably due to bad solder joints that need to be addressed.

Feb 06, 2011 | Sony FD Trinitron WEGA KV-36HS20 36" TV

1 Answer

Very slow in turning on, 3-5 min. Then works ok. It is a Sony 36 in trinitron wega

Possible issues in the Power section or the main board . If you can use a hair dyer to heat areas slowly the fault area can be found out easily as the set gets triggered when warm a possible fault in the capacitor of either of these stages.
Be very careful and you will be able to get to the fault as the set is live.
Check for leaked capacitor or smell in this sections.

Aug 31, 2010 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

Sony tv

Something is Wrong with the Video.Check Video out,Q705,732,761 and other components on the C board,c also check Q218,219,220 on the A board.In addition,unit could be in IK blanking,try turning up Screen Slightly

Nov 02, 2008 | Sony FD Trinitron WEGA KV-36HS500 36" TV

1 Answer

Sony problem

I suspect cold solder joints on mother board and power supply or power supply starting to go . bad driver transistors.

est for tv shop is 160 t0 225

thanks doctor video

Jun 06, 2008 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Sony KV Trinitron WEGA 36" TV won't turn on

My 36 wega did the same thing last week it must be contagious. Blinks 7 times mostly but sometimes 6 if hit power switch again. The problem is the D-boards shorted Flyback high voltage transformer but the ones Sony is selling $130 do not hold up and seem to burn out in a few days, yes twice bitten. Finally they send me new D-board can't wait to see if this fixes it once and for all. The board costs around $200 but is worth it to get it running again.

May 02, 2008 | Sony FD Trinitron WEGA KV-36HS500 36" TV

1 Answer

Sony kv32fx68u

Hi i am a service center for sony we do a lot of these repairs most likley it is the voltage regulators in the power supply and cold solder joints on mother board and maybe horz out put transistor. some time it is screen voltage ajustment on fly back or maybe worse case bad tube that is the only things that cause this problem cost aroud 160dollars to 225 dollars


Apr 26, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

1999 36" Flat screen Sony Trinitron TV

Hi there!

There may be dry joints in the Line Stage where the Line Transformer is situated. The move may have loosened some components off the board. If not familiar with TV Electronics please refer to a repair technician. Regards and good luck, JUS004

Mar 31, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

2 Answers

Sony trinitron kv-36fs10

dear misskona, I suggest that if you have any technical knowledge the first thing you do is to increase the screen voltage and see if there is a bright line across the screen solder the vertical I.C or remove and fix another working one.if that do not solve the problem there is scat board solder some dry joint.


Dec 21, 2007 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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