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I need a schematic for my samsung tv power ciruit board BN44-00775A trying to find the value of a little blue capacitor that fried up.the capacitor is placed on CP820.

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Samsung TV Model LN40A630M1FXZA, Takes forever to start up, clicks off, loud static noises and strange picture when it is trying to start.

1. Replace the defective electrolytic capacitors on the main power supply first.
2. If above repair did not fix the problem,, replace the main board.
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How do I identify a bad capacitor on a Samsung LN55C610N1F power supply board?

you can tell by the top of them,when there bad they bulge ( as if there going to pop )


25980851-y0it05ineeq3t1lxjrw0uiu3-1-0.jpg
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I need a schematic for my samsung tv power ciruit board BN44-00438B trying to find the value of a little blue capacitor that fried up.the capacitor is placed on CP820..

I dont have the schematic for this board but I hope this info work. The value of the capacitor (CP820) is 221k 1kv. Heres a picture and a conversion chart. You can see the conversion code from pf to mf.
http://tubeamplifierparts.com/handy-amp-info/capacitor-code-chart.html
need-schematic-samsung-tv-power-ciruit-m5vrybge4f15krhe45v4k2us-2-0.jpg
Oct 18, 2013 • Cell Phones
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Jvc hd-52g886 wont turn on

Hi!
That's a clear indication that you have a bad power supply in your TV.
If you know how to DiY...I suggest you open your TV. Locate the power supply section, it is where the end of the power plug is connected. Replace all blown or bulge or leaked capacitors with same value. That will fix your TV problem.
The hardest part is to disassembling your TV cover, cause you will need to pry off the snap in lock at the edge of your TV.

Power supply board should look like this. Examine the capacitors in the board
power%281%29.jpg2_23_2012_11_31_16_am.png

After replacing blown capacitors...it should work again.
caps%281%29%281%29.jpg

Things you will need.
1. A plastic flat end screw or any object with flat ends....to fry off the cover
2. Soldering iron.
3. Soldering lead
4. Soldering pump.
5. Flat and Philip Screw
6. Replacement capacitors (of same value with the blown one) that you can buy to any electronics store.

Hope it helps
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Samsung PDP 450 51 won,t turn on just flashes a little light at me, just bought it and wont run initial setup.

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a failing fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress from www.shopjimmy.com

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.
0helpful
1answer

I have a 50' projection samsung and it got hit by lightning and now it wont turn on and we bought a power cable to start somewhere trying to fix it and that dont work and we know there is a way but any...

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Take care.
0helpful
2answers

Can't turn on tv with remote or manually

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Good luck.
0helpful
2answers

Samsung 32" LCD tv dead.

Hi,
Please check the power supply of your TV including fuse and cables. Totally dead TV usually need simple things.
Regards
0helpful
2answers

I have a samsung 26" LN26b360c5d lcd tv. the unit acts to power up, makes the start up sounds, but there is no picture. I tried putting a flashlight to the screen to try and see any image. but saw nothing....

hi,
your lcd ip board (power board) capacitor had already exhusted.
got to replace the ip board. even if the caps look fine you would not know if the transformer coil is working ;)
0helpful
2answers

Samsung LE32 tv does not turn on. blue indicator light flashing

this is a common fault take back of and look on main power board for blown capacitor's ( raised tops ) they look like little batteries with white line down one side replace then with same value e.g ( 2000mf 25v)
remember what side line is on (TAKE PICTURE) for capacitors look on Charles hyde and son web site(CHS) under general components listed on left side of page
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