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Circuit board the power ic is burn so i cant find the number to replace it

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Pl tell me the correct number of the ic and volt of the ic used in samsung 740nw power supply board because the ic is burst so i cant identify the number


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular TVs are given.

Aug 30, 2015 | Samsung Televison & Video

1 Answer

What IC's uses the control of the focus motors


I'm assuming you will change these ICs yourself and that's why you're asking. If you have access to the circuit board, then you should be able to find some numbers on the IC which you think is blown. If you can pull that IC and look at it's underside you may be able to find a number you can search on the internet for. Or you can find a number on the circuit board itself and maybe find the company that made that board and contact them to find out the IC you need. You can probably find an IC match as long as the pins are in the same order and the voltages are the same. Good luck!

Oct 14, 2014 | Meade Optics

1 Answer

On the screen there is a green shadow on one side and a red shadow on the other side of every object in the scene


Hi,
This tv has two big black ICs as convergence output on deflection circuit board that are defective and causing problem in tv, IC number is STK392-110
replace both ICs to solve tv problem, also chekc for faded color big resistor nearby these ICs or those got burn mark, replace these resistors with same value, aslo check cold/ dry solder joints in deflection circuit board and resolder these joint/ connections.
Thanks.

Jan 21, 2011 | Hitachi 65TWX20B 65" Rear Projection...

1 Answer

Television has double images like 3D, and bottom half of screen has a concaved image.


Hi,
Please replace convergence ICs in tv, there are two big black ICs that has number STK392-110 mounted with big aluminum heat sink, replacement these ICs will solve your tv problem. Also check big resistor nearby these convergence ICs and replace if found burn mark or color faded.
On circuit board, IC location number is IC7001 and IC7002
Let me know if you have additional question.
Thanks.

Dec 25, 2010 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

What if the power ic of philips freevents x60 was burned?is it repairable? the value of the power ic cannot be recognized. is there a way to find what value it is?how?


1.If the power IC is burned, it isn't the only IC that's going to be defective now. Kind of like a 'domino effect'.

2.It isn't a simple fix, of just un-soldering a component from a motherboard, when dealing with a laptop motherboard. All motherboards are built in layers, (Desktop and Laptop), but laptop motherboards are even more layered.

http://en.wikipedia.org/wiki/Printed_circuit_board
(Scroll down to the heading -> Lamination, then read the entire article. Also check the links at the bottom)

This means the actual circuit trace may be between layers. (Circuit trace. The thin strip of copper, left behind after the Printed Circuit Board is etched)
You won't be able to un-solder it without burning the board, (Motherboard, or also called PCB), and re-soldering is twice as tough.

You need a reflow machine, high magnification, a precise soldering station, and highly developed soldering skills.
Not trying to ruin your day, or offend your computer repair skills.

Replacing the motherboard may be the only viable option. Check Ebay-> Computers and Networking>PC Components>For Laptops and Notebooks.
Also > Laptops for Parts.

You have seen that this IC is burned? I ask because the X35, and X55, had a bad problem with the On/Off switch going bad.

Aug 06, 2009 | Computers & Internet

1 Answer

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


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

Jan 21, 2009 | Sony Televison & Video

2 Answers

Samsung HL-S6187W 61 in. HDTV black screen on the right side


Looks like the transformer's secondary winding is burned. The one with part number 35B020-NY. Better have it checked by a TV technician.

Aug 31, 2008 | Televison & Video

1 Answer

Samsung HL-S6187W 61 in. HDTV black screen on the right side


If you found a bloated capacitor on the circuit board, that one needs to be replaced not the board. You can see the part number on the capacitor itself. Also please look for any burned IC and neighboring components. If you found additional burned components, it also need to be replace. Contact a pro tv technician to replace it.

Order parts here:

http://www.partstore.com/Sitemap/Generic/Television+parts/Television/Television+parts/television+parts.aspx

Aug 30, 2008 | Samsung HL-S6187W 61 in. HDTV

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