Question about Hisense TL-3220 Television

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Capacitor and Power board

Firemershel,

You posted earlier this year on changing a capacitor on a power board. Can you help in identifying this power board and capacitors? My model is the TL2020. From what it appears everyone who has bought this model has the same problem.

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  • rwall11208 Feb 05, 2009

    I have the same issue as the other here. One thing that DOES happen that I don't see mentioned is that if left on long enough (cycling on and off) it will eventually come on and stay on till turned off.

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Had same problem and changed caps, worked great and only cost me about $6. I did use same spec caps bought from local electronic store.

Posted on Mar 08, 2009

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Follow the power cord to the board. that is the main power board. the capacitors are near the top center (aprox 3/16" diamiter and 5/8" long ) three of them. replace all three . firemarshel@yahoo

Posted on Dec 25, 2008

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1 Answer

Where is capacitor located on TV


There are several.
You should be identifying the four large components
- Power board
- Logic board
- Timing Control (TCON) board
- LED inverter driver board

99% the capacitors you are looking to identify for a power related issue on the power board.
capacitors look like
26155016-a3z50hdvc01hdf5dkelcuavu-4-0.png hope the video below helps you identify the defective capacitors
Fixing the Blown Capacitor in Samsung TV Yourself

Apr 07, 2016 | Televison & Video

1 Answer

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

Nov 26, 2015 | Samsung Televison & Video

1 Answer

32MD251D/37 will not power on



Zack Corpier

Workup for repair

02/22/2013

Diagnosis for Magnavox 32MD251D/37

Symptoms:

Will not power on

Once on, if turned off power might not return

Does not respond to power cycling

Possible Culprits:

Overloaded fuse

Damaged/fried power board

Damaged/fried inverter board

Damage to wiring or related

Overloaded capacitors on power board - I identified this based on a visual inspection and a multi meter test




https://lh6.googleusercontent.com/-Mcf67G5l3l8/USgitModWZI/AAAAAAAACRo/PwjueC45Hjo/w333-h319-o-k/caps.png


Problems Identified:

Capacitor 2079 appears overloaded - 1200uf 35v

Capacitor 2080 appears overloaded - 1200uf 35v

Explanation:

The capacitors referenced regulate the voltage controlling the power. These caps have a limited lifetime in hours which is usually around 3000. The device was left on for an extended period of time overloading these essential components.

Resolution:

1. I will order a set of replacement capacitors

2. Discharge board prior to work

3. Remove and replace damaged capacitors

Required Parts (total cost $30):

(2) Vented axial 1200uF 35v Capacitors - $8

Variable wattage soldering iron (minimum 35w) - $22


Feb 10, 2013 | Magnavox 32MD251D/37 Tabletop Pedestal...

1 Answer

Power light becomes dim


I have discovered that this is a common problem with monitors and it is caused by capacitor failure. The capacitors in your monitor hold power enough for the display on your monitor. Inside your monitor, on the board where the power cable is connected, that is where you will find capacitors. Get any computer technician to open up your monitor and check for any bulged or burst capacitor. A malfunctioning capacitor will be identified with a bulged head or a burst. Remove the failed capacitor(s) and replace with the same type of capacitor(s) with the same voltage and degrees. Make sure that you note the polarity (-) and (+) when you are replacing the capacitors. This would help you out of your problems

Nov 21, 2011 | LG FLATRON M2900SBN 29 inch Monitor

1 Answer

Polaroid flm-373b lcd tv - making a loud buzzing noise. Picture is fine.


Possible that the main power supply unit which is the SMPS- switch mode power supply- has a faulty capacitor or in the INVERTOR board which has changed the value and so the frequency being changed can cause higher huming level- reduced to lower frequency.
so check the board for leaks , if so replace. Also check if the threshold voltages are below level in these circuits. if so the capacitor can be identified. If there is change after the component heats then simulate the circuit board and confirm using a hair dryer.

Sep 23, 2011 | Polaroid FLM-3732 Television

1 Answer

My toshiba LCD 37 inch is shutting off everytime I try to watch tv... Green light powers on then shuts off. However, I change the input to video and it plays DVDs from my DVD player can anyone explain what...


The problem of your television is the power supply.The power supply is faulty because of leak capacitor.You can identify the leak capacitor through visual checking.The leak capacitor have bulging tops.Remove the cover and find the power supply located at the upper right and you can see the bulging tops capacitor. Replace with the same value of capacitor.

Sep 19, 2011 | Televison & Video

1 Answer

Its on stand by but wont start up


In that case or problem of you television,the cause is the deffective power supply.The power supply is dead or has a low voltage output.The cause of that problem of power supply is the deffective capacitor.The capacitor is totally leak and cannot filter the voltage.The leak capacitor can cause of volatge drop.So if you want to repair the power supply,try to pull out the power supply to the cassing and remove the cover to see the leak capacitor.You can identify the leak capacitor through visual checking,if you don't know how to use the capacitor tester.If the capacitor have rounded shape at the top and have some moise,that a leak capacitor compare to flated top shape of the good capacitor.Replace all leak capacitor with new and same value for example.330mf/35v.Avoid short circuit at the PCB board of the power supply.Try my suggestion or procedure.Hope it will help you.Thanks..

Aug 29, 2011 | Televison & Video

3 Answers

I have a Samsung LN40A450 LCD TV that is only a year and a half old. I am getting no power to the tv only a consistent blinking red light and a audible clicking/beeping noise. What needs to be replaced?




I will explain how to:


  • Open the case of the LCD
basically in all LCD monitors have two circuit boards (power supply board and system board)
  • After you open you will see the two boards are

  • You see a board that has a socket for the power source. wrote that the board we're looking for (power supply board)
  • Remove all cables connected to the board and take out the board. (get noted before you unplug it)
  • Now you see it components on board, we looking for capacitor.(see picture below)
46ddc22.jpg

  • Looking for damaged capacitors, physically you will see a capacitor on the top like a bloated (see picture below)
7a91ba9.jpg
  • Replace the damaged capacitor with the same value that you can see on the surface of the capacitor. (In this step you need any soldering tool)
My advice: replace capacitors with higher voltage, like 10V replace with 16V or 25V will be fine.

Feb 01, 2010 | Samsung LN40A450 LCD TV

2 Answers

Westinghouse LCM-19w4 has power, but blank screen


refer to an earlier post about similar problems. Does it power up and then shut itself off. this is possibly due to two defective capacitors. 27 cents on line $1.50 at radio shack. They will be puffy on top. I am a complete novice to soldering a capacitor onto a board. but since I was junking the monitor otherwise I gave it a try. It's still working after sitting idle a year. Handy advice on soldering online. use copper wire to **** up the old solder and try not to fry the capacitors or the board. If I did it anyone can.

Mar 22, 2009 | Westinghouse Computers & Internet

1 Answer

Power Supply Keeps Tripping Fuse


Freeze the capacitors is a trick worth trying. These usually are the problem

the way you run this is too use freeze spray to freeze each capacitor one at a time . Turn the TV on and if it doesn't trip for a few second longer you know that is the capacitor to change. Freezing capacitors only helps identify the fault if it is a capacitor issue (usually is with power on TV's)

Dec 24, 2008 | Philips 32MF231D Television

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