Question about Samsung HPN4239 42 in. Plasma HDTV

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Blown capacitor changed the capacitor on the left side 1 in a series of 4 heat sink next to these capacitors extremely hot to much i think to be anchored to a circut board also too hot to the touch burn hot and a smell what can i do thanks

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Most of this TV's are not a component level repair anymore,
unfortunately you have to replace the entire board

Posted on Apr 23, 2009

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2 Answers

I just noticed there is no input voltage to the power board on my Emerson plasma tv model PL-P42W-10A


check the bridge rectifier on the black heat sink left side bottom one with the + - and 2 squiggles on it.
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Feb 05, 2018 | Emerson Televison & Video

1 Answer

Tv won't power up


just had this problem, heard a pop, tv off, removed back cover,checked blogs, disassembled power supply-- external ac to dc convertor, no screws, use small flat blade screwdriver, tap along sides at seam all along until it appears to pop apart. check capacitors and solder connections. My was an over heat issue, after removing plastic and cover aluminum heat sink basically, cooled down fixed crack solder and works-- will order a new one suggest you keep this i a cool spot. not next to a cable box! happy as the blogs are grim.

Jan 16, 2014 | Westinghouse UW40T Series UW40TC1W 40" LED...

1 Answer

How can i fix static on my maxent lcd tv


26 inch maxent mx-26x3 and 32 inch, l2614xw02 some same parts
When i hear the word static, i think snow,
If while your watching tv and it looks like color snow pixels popping in and out all over the picture i did this to fix it.
look at main board you see a green heat sink,
left of that heat sink you see a 220 uf 16 volt capacitor that half surround by 22 uf capacitors,
change the 220 uf capacitor and snow is gone.
to get it off i just wiggle slowly back in forth until the old capacitor falls off,
then put some fresh solder on and new capacitor on and done.
use a radial electrolytic capacitor not the little metal one they had on


tc
bagabillion

Jul 11, 2011 | Maxent MX-26X3 Television

1 Answer

My 50 inch lg plasma tv is flickering with no picture, we were watching it an u heard a click and then flickers with no picture.


Hi
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.If otherwise,The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.

Often there are fuses on that board - one or more. Check those.

if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.

Take care in solving the problem....

May 26, 2011 | LG Televison & Video

1 Answer

Lcd monitor automatic on off


There are 4 bad capacitors involved. It may not seem bulging but one or two are leaking. These are the 4 capacitors. 2 pcs. 470 microfarads - 25v 1 pc 1000 microfarads - 25v 1 pc 1000 microfarads - 10v I replaced them all. Next is to clean the board at the back. I got 91% alcohol and toothbrush and scrub. Concetrate on the 8-pin IC which has colored yellowish paste. Scrub or use a Q-tips buds soak with alcohol and clean it. Next resolder all 4 trasformers. Two on the primary and 2 from the inverter side. Also resolder the 2 transistor/mosfet (3 legs) which is attached to the metal (heat sink). After resoldering, again clean with alcohol by scrubbing or Q-tip buds for sensitive part.
Mine is working fine now. Good luck

Roan

Feb 02, 2011 | Samsung SyncMaster 920NW Monitor

1 Answer

The green light in front panel is blinking constantly. It will not power up. I recently moved the television to another room, but the television was handled with extreme care.


Hello,

A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage. If otherwise you can Try websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Hope this helps

Jun 01, 2010 | Mitsubishi WS-55511 55" Rear Projection...

2 Answers

No power to Eiki EIP-2500 projector


there is a fuse on the power supply. if the fuse is good, you'll need to replace the power supply.

Jun 22, 2009 | Eiki EIP-2500 Multimedia Projector

1 Answer

Boss 3.5s capacitor?


something in the order of 120 ohms. If you use a 1/4 watt size it will get extremely hot.

May 15, 2009 | Boss AUDIO CAP2C 2 FARAD CAPACITOR DIGITAL...

1 Answer

Bad start capacitor?


Hello !
You can look at the start capacitor for signs of leakage. Also check to see if it is getting hot.
If you can get a replacement that's the best way to confirm it being bad unless you have a capacitor tester.
I think you said the compressor was getting hot. If it is something is stopping it from starting. There is an overload device which is about 3/4 " thick and 1" in diameter which goes bad but if it is bad usually the compressor is dead - - - won't even try to run. The overload is located near the start capacitor.
If the condenser coils are clogged with lint- etc. the compressor will also get hot due to not enough air flowing over the coils. This also will cause you refrigerator to not get cold enough.
I really think you have a stuck compressor. I have been wrong before so it is best to check the cheapest things first. I hope this helps you !
Stargazer

Mar 16, 2008 | Kenmore 50522 / 50524 Side by Side...

3 Answers

Rca d52w19


You can change the HV splitter first,then change the flyback
transformer, if necessary.......Do be careful with part number
of transformer....check the drawing number on it ......10756 =
259296.......10799 = 265409......as examples..........
I can check on that for you based on your info................T.

Feb 09, 2008 | RCA D52W19 52" Rear Projection Television

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