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I HAVE A SONY TV MODEL KV-HA21P50 AND ITS NOT SWITHING ON I AM TECHNICIAN PLEASE ASSIST

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GOTO HIGHLANDELECTRIX.COM,THEN GO INTO TV DATABASE MAY FIND SOLUTION THERE

Posted on Jan 21, 2009

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Posted on Jan 02, 2017

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Sony trintron Tv KV-HA21P50, its alot of green color, whats is the problem.


Hello
Loose soder points in the video output board of your Sony Trinitoron is the problem. Solder loose on the green output transistor will show this kind of fault with this type of CRT based sets. Just open your TV, and locate the video output board. It can be located at the picture tube base itsef. This board is pluged diretly to the back of the picture tube. Just pull it out straight backward, without making any sideways shake. You may have ot apply some backward pressure to detach it out. Just look for any loose solderings at the solder terminal of this board.
It is very difficult to detect the loose soldering by ***** eye, as it will be microscopic in nature. It is a best practice, to resolder most of the solder terminals of that board, by app;ying a little more solder, whout making any solder bridge in between adjecent solder terminals. This will solve the colour problem to your TV.
I've attached a picture of a tV with back opened. You can see the Video Output Board pluged on to the back of the picture tube. Just resolder all the picture tube base socket terminals solderings also. OK


gopakumarg43_35.jpgHere the main board has been pulled out and placed vertifally at service position. The CRT board [video output board] can be located as you open the TV.

Aug 30, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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Am looking for sony wega tv manual. The model is KV-HA21P50. Can anyone help me out


I could not find your exact model at the Sony site but there are some manuals very close, so you may find what you are looking for by downloading a manual very close to your model. See the manuals here:
http://www.sony.co.id/section/manuals

otherwise if you have a specific question, ask.

Mar 14, 2011 | Sony Televison & Video

1 Answer

Video 1 illumination wont shut off.


There is trouble in the video swithing Ic inside your Tv. Either it may got damaged or video swiching voltage may not come to it from system ic. If the video swiching Ic is damaged, it is easy to replace and get the set repaired. If the System Control Ic is damaged it will cost more and may need retune it after replacement and giving its remote service code for further adjustments. You just call a technician and consult him about the matter.

Oct 16, 2010 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

My SONY KV-XF21M80 produce a hissing (sparking) sound


That model number is not correct. What is an EHT? Must mean HVT High voltage transformer. If this set is 26 inch or smaller replace it. If larger yes replace the transformer.

Nov 23, 2009 | Televison & Video

1 Answer

Sony KV-1946R


if your television is an older model probably the switch is defective.need to be replace,if its a newer model then the trouble must be in the power supply section.contact a tv technician tto check the trouble.

Jan 10, 2009 | Sony KV-9PT50 Television

1 Answer

Sony trinitron KV-27FS100


probably, you have to call for a technician to check for it, the switch of the tv might have some dis alignment of cables

Oct 30, 2008 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

SONY WEGA PROBLEM


That doesn't make sense. When you state that the TV comes on 5 minutes later, doo you mean that you get sound right away but hte picture comes on later? If so, a :power board" won't help. Please update this so we can narrow down the problem and get you a solution.

Thanks,
Dan

Aug 20, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

2 Answers

Stand by led blink 4 times


my tv is FD Trinitron WEGA KV-HA21. when i press the power button it starts but after about three secounds it trips to stand-by and starts blinking four quick succession at intervals

Jul 20, 2008 | Televison & Video

1 Answer

Sony Trinitron 29inch Color TV


The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.

Dan

Jul 14, 2008 | Sony FD Trinitron WEGA KV-29LS35 29" TV

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