Question about Polaroid FLM-3734B 37 in. LCD HDTV

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Same problem took mine apart and caps are buldged out where did you find you capicators

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Radio Shack, Just act really smart and a little strange, and ask where they keep the capicators.

Posted on Jun 27, 2008

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1 Answer

HOW TO GET POWERSUPPLY?


We have seen many large flat screen TVs do this. It is usually one or more bad capacitors on the power board.
  • A cap is a few bucks and easy to replace if you can desolder and solder.
  • You need to identify the bad capacitor.
  • The bad cap will look buldged out or extra fat and deformed.
  • The small cross on the top of the cap usually splits when they go bad.
  • (This is because of a chemical reaction in the capacitor that expands therefore leading to the buldging.)
  • Find the bad cap and replace it.

Apr 05, 2016 | Hisense Televison & Video

1 Answer

Bad capacitors


you need a capacitance tester, you can visually inspect for buldges and leaks, to test with a cap tester, you need to remove the cap.

Dec 09, 2013 | Insignia Televison & Video

1 Answer

I have a Sony Bravia Model KDL40v2500, Serial #8057846, manufactured November 2006, that does not give any picture or sound. When we turn it on it clicks a few times and then goes into some sort of standby...


could be blown caps on your power board. if you dont know what they are i dont recommend doing the work yourself. take it to a repair shop. if you feel comfortable taking it apart you can check and see if any are buldged on your power board.

Hope this helped/ Please take a moment to rate :] Thanks!

May 07, 2011 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

Getting a humming sound from the back of the tv


Sounds like a cap is about to blow. Id take it apart and look at the caps on your power board to see if any of them are buldged. You can replace them if they are not too and see if it works, if not then you could have a bad transformer. In that case you have to repalce the board.

Please take the time to rank :] Thanks!

Apr 22, 2011 | Sony KDF-E55A20 55 in. LCD Television

1 Answer

Power went out today and the TV is not turning on now


Most likely when the power came back on, there was a surge that damaged the power supply board in your TV. If your TV is completely dead with no blinking or standby lights, then the power supply is bad.

The power supply is the first board that the plug from the wall is going into.

You can check this by taking the back cover off and check for capicators that have gone bad. These will be capicators that look bubbly on the tops that are budging out. If you see any and know how to solder, replace these capicators with the correct voltage and Farad readings that are usually listed on the capicators themselves. Make sure to mark which side the white stripe on the side of the capacitor is as the orientation is very important.

Replacing the capicators is usually a cheap fix but if you do not want to or cannot solder the capicators or if you do not spot any bad capicators, just replace the whole power supply board. This can be done by just unscrewing it off the LCD panel, disconnecting the connections to and from the board, replacing the new board, reconnecting, and screwing back in the new board with the same screws.

Oct 16, 2009 | Sharp LC-19SK24U TV

2 Answers

42FD9954 philips plasma TV flashing LED it wont come on


The problem is in the standby power supply. the standby power supply generates the 9 volts and the 5 volts requird by the tv. If you measure the 9 volts source, with only the red light on, the correct voltage is 9 volts. However if the 9 volt measures 6.5 to 7 volts it is too low and the startup relays cannot operate. My set is a model 42FR9954/17S. In this set if capicator, 2603, is heated the voltage climbs to 9 volts and the relays work. If cold air is applied to the capicator the relays fail to operate. Replace capacitor 2503 and the problen is fixed. This capicator is: 47 Ufd, rated @ 450 volts, and is 20%.

Nov 08, 2008 | Philips 42FD9954 42 in. Plasma HDTV

1 Answer

FPD2185W


you need to use 105c temp caps

Apr 14, 2008 | Gateway FPD2185W 21 in. LCD Television

6 Answers

Wont start


Hi all. I came across this forum after "Googling" this particular model ilo TV. (LCT27HA36) Like a lot of you, mine would not turn on. It was just like lambon48's TV. Since I could not find an answer online, I took it upon myself to solve the problem. I am a retired radio engineer, and have experience in repairing a vast assortment of electronic equipment. The problem with my TV was isolated to the power supply board. I found several capacitors to have bulged. That is, the tops were swelled outward. This usually is a sure sign the capacitor is bad. The ones that were bad were all of the 1000 uf capacitors and one 470 uf capacitor. Now these caps were rated at 16 volts and 25 volts. When I replaced them, I used 35 volt rated capacitors. These caps can be bought at Radio Shack for about $1.60 each. It cost me $10.50 to fix my TV. I recommend you having only basic knowledge of soldering to do this. Just take your time and notate how the caps are installed before you remove them.. Please make sure you install the caps properly. That you put the positive and negative legs of the capacitor in the proper holes. If your board is like mine, the positive side is marked on the circuit board. If you are hesitant on soldering, I bet you know someone who can do this for you. Good luck.

Mar 21, 2008 | iLO 2600 Television

2 Answers

Help


This is probably caused by faulty capacitors in the power supply. This is a common problem with this model. If you no longer have a standby light, it could also be caused by an unidentified short on the main board. Hope this helps you out.

Dec 30, 2007 | Akai LCT2662 Television

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