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Sony color TV model kv-c29 11d blown power supply ic and transist

Blown power supply ic and transistor to the extent that all the writings on these two items cant be seen so i cant know exactly the name or number on the ic or transistor to enable me get a replacement part.

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There should be circuit designations printed on the PC board. Without those, there are too many possibilities to give you anything useful. Can you provide those please?

Thanks,
Dan

Posted on Jan 21, 2009

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Dear sir , i have sony trinitron kv2552 m9 crt 25 inch tv i need the transisters on that tv , is this the transister str 50115 on this tv please tell me.


It is not a transistor. It is an STR [Switching transistor Regulator]. Actually it is an IC, used at its power supply regulator section as main power switching regulator. Check this link to see its picture.

For more details type in this site name "Electro-help" (DO NOT copy and paste the site name from here. Doing so may lead you to wrong place) to search box of your search engine [not in the address bar of your browser], and press "Enter".

It is an electronic equipments service help site.

Note the position of hyphen in between words in site name. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts.

You can locate this site, either at the bottom part of first search page, or at the top of second.
Detailed descriptions are there to help you.

Sometimes, entering ads by the side and bottom of each post here might give you details of its availability and local price.

Jun 07, 2012 | Sony FD Trinitron KV-32HV600 32" TV

1 Answer

Sony model kv-35s36, wife was watching tv and it just shut off. nothing indicates there is any power at all, no screen color, no power on indicator, no sound. there is power at the wall socket. any...


The main fuse has probably blown indicating there is a power supply issue and there are any number of reasons why this can happen, but you will need a tv tech to troubleshoot the extent of the problem to find out if it can be repaired within reason.

Feb 04, 2011 | Sony KV-35S36 35" TV

3 Answers

No Display, no sound- not working, showing dead. But input Power is ok. Picture tube filamment not getting power. model sony KV-2192M3


Hello
Check the input fuse first. If it is blown, there will be some short inside the power regulator circuit. Usually Sony sets uses STR regulated power supply. You can see this STR, and Ic, screwed onto a heatsink. Replace it with a same type and number. Before replacing the STR, check the diodes used in that section for damage, mainlu zener diodes. They might get shorted along the blowing of the STR. Check that section throughly before resoldering the new STR.
If any further assistance you needs, get me through Fixya. Ok.

Nov 27, 2010 | Sony FD Trinitron WEGA KV-21CL10 21" TV

1 Answer

Sony 2167 No power on


I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.

Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.

The high voltage multiplier & flyback can also cause the fault you are having.

You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.

Jerry G.


Nov 26, 2008 | Sony FD Trinitron WEGA KV-21CL10 21" TV

2 Answers

Berndulay@yahoo.com


Accroding to your model number:(KV-...) In sony tv units power supply porblems is very low unless a power surge.
You have to check these things.
1. Stand by 5V available or not
2.If stand by 5V available press power and check B+ is getting or not
3.If B+ available check Horzontal oscillation
4.May be H-out transistor or video amplifier is bad.

Oct 14, 2008 | Sony Grand WEGA KF60WE610 60" Rear...

2 Answers

TV screen turns green


i think your color combination chip is not working. you may have to change the chip of color system.

Jun 11, 2008 | Sony FD Trinitron WEGA KV-36HS510 36" TV

4 Answers

No Power on Sony TV


Be sure to use an ORIGINAL Sony transistor and be sure to resolder the pins of the small horizontal driver transformer and all parts connected to and around it, and your set should be fine.

Aug 17, 2007 | Sony FD Trinitron WEGA KV-20FS120 20" TV

1 Answer

1996 Sony 32" Trinitron - Suddenly lost picture and sound


The most common problem with TV was the failure of the Horizontal Output Transistor, this will also damage 2 transistors in the power supply and a resistor in the power supply also. (From memory): Horizontal Output location # Q501, 2 power supply transistors Locations Q601, Q602, and resistor Location R607. Also solder the Horizontal drive transformer, you can find it by following the circuit board from the base of the Horizontal output. Some models used an IC instead of the 2 transistors in the powersupply, it will have six legs and check like 2 transistors. Good Luck.

Jun 04, 2007 | Sony KV-32S26 32" TV

1 Answer

ABL protection active & color's spots


Replace the capacitor and the resistor as well as the diode that feeds the b+ to the vertical IC.

Sep 28, 2006 | Sony KV-32V26 32" TV

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