Question about Samsung HCN4226W 42" Rear Projection HDTV-Ready Television

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Power circuit board needs to be replaced

My wife and I were watching tv then the tv blew. A small cloud of smoke arose from the back of the tv and nothing. No power, no picture nothing. It turns out that the input circuit board needs to be replaced. Can anyone offer assistance in where i can get this board?

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Samsung parts
http://www.partstore.com/Part/Samsung/Samsung/

Posted on Jan 29, 2008

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1 Answer

Keep blowing the main fuse.


To which circuit section did you replaced the fuse? Main power retulator? Just understand, the fuses are used to protect the circuit and TV from any short circuit or over voltage. Without any one of these, no fuse will blow up. If it was due to over voltage, the set should work after a fuse replacement. But here, the fuse blow up again, means, there is some thing shorted component/s. Check which component is shorted, and replace it, before replacing an other fuse. One more thing to say is, never insert a fuse other than specified. The voltage and ampere specification to fuse, will be marked at the circuit board, very near to the fuse clamp. Insert a fuse of same rating only. Using other fuse, rated higher ampere rating, might make things worse.

May 27, 2013 | Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

Tv blew up


Power board probally have burn capacitors.Take the tv aparts,check for puff up or burst open capacitors.Know how to solders? Replaced these capacitors well get ur power back.Or replaced the whole power board buy it at Shopjimmy.com,Ebay.com.

Jan 24, 2010 | Hitachi 60SBX78B 60" Rear Projection...

1 Answer

I PLUG MY TV IN MODEL # KP61V80 I SEEN SMOKE COME FROM SMALL BLUE CERAMIC CAP BEHIND THE D TRANSISTOR PWER DO NOT COME ON LIGHT BLINK 4 TIME



You have a faulty power supply.
If the TV is smoking , do not turn it on anymore.
You need to replace either the whole power board, or the capacitor (s) that had blown.
Here all parts for your TV: KP61V80

Oct 29, 2009 | Televison & Video

2 Answers

A chip on the circuit board started smoking


The component sounds like a resistor, and the fact that it was attached to a heat sink means its a power handling resistor. You said it was burning, so this means that whatever it is attached to is drawing too much current. From what you are saying a component on a board is drawing too much current and is causing another component (the 1 ohm resistor) to burn. My question is what board is this (I am suspecting the deflection or the HV power supply). Please post a picture of the board in question. That way I have a visual guide as to the board and if I can find the schematic, or if you can supply the schematic I'll be able to at least give a better diagnosis of this problem.

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Dec 30, 2008 | Sony KP-61V90 61" Rear Projection...

1 Answer

TV smokes when you turn it on and no picture


Check to see where the smoke is comming from, the far left side of the unit, it is probably the flyback/horizontal output transformer. The big gray/black thing on the board with the two red wires out of the top of it.Replace the horizontal output transistor (D2348) with a new one to increase reliability. It is the large three leged transistor to the left of the transformer. Use Sony parts if possible.

Dec 02, 2008 | Sony KP-41T65 41" Rear Projection...

1 Answer

Fluid leak ws 65807


It sounds like the coolant leaked from one or more of the projection tubes. You may need to replace the affected tube assemblies.

Sep 17, 2008 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

I have an LCD TV and all of a sudden one day when we were watching it it just all of a sudden just turned off an lost all power. the TV was the only thing that turned off. And now will no longer power...


on these plasmas it is way easier to replace the power board then to diagnose and try to find parts, go to shopjimmy.com they will have your board for cheap, and its easy to replace. you should also alway post your model # and type of tv

Sep 10, 2008 | Televison & Video

1 Answer

Tv went dead


This sounds like the small blue capacitor next to the horizontal output transistor shorted and cracked, which blew the B+ fuse. The B+ fuse is the solder-in type which looks like a small resistor and the value of the blue cap is usually 1000pF at 2KV.

May 08, 2007 | Hitachi 50UX58B 50" Rear Projection...

1 Answer

Power Problem


Most often this problem is caused by convergence ic's. STK392-110. Sometimes cause is vert. i.c. Also, many times it is from bad solder connections on circuit board. In any case, short of unplugging unit to reset, there's not much you can do without help from repairman.By(1)removing rear cover,(2) unscrewing 2 screws holding chassis in and(3) undo all clips and wire ties holding wiring in place. Small board on (R) side is conv. Slide entire chassis towards you. Remove 3 screws from small conv. board.Remove and mark 5 plugs and 4 black jumper plugs to free board. Look at bottom of board for rings around solder joints at pins of main amps.(STK392-110). Resolder or replace amps and reinstall board. Reconnect 4 jumpers and 5 plugs in same order. Power up unit and hit magic focus. This is most common repair.

Mar 06, 2007 | Hitachi FDX Series 43FDX10B 43" Rear...

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