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Power board is not working, all capacitors are replaced

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Posted on Jan 02, 2017

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badfish6686
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SOURCE: Television blank screen, audio works

A capacitor can still be bad even if it is not visual. basic tests can be done with a multimeter, only an ESR meter can truly test them. You would need to know the pin out to know where to check, but I would assume you are going to have various voltages exiting the board. Your two measurements don't add up if you aren't reading any voltage.

Posted on May 05, 2013

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1 Answer

I have no power to the display (thus the machine will not run) but the fan will run. What do I do?


1) if your display use batteries ,replace by new ones.2)tight the flexible cord from keypanel vs display board3)tight the display board vs lower board( main motor board)4)see if your have 5VDC to display board coming from lower board.5) Test the lower board is coming the power 115 VCA + 5vdc COMING from power supply (transformer+ diodes+capacitor).6) Display board is faulty or Main Board(Lower board). Of course after you did check the step before. See the block diagram that I did for your illustration.12_14_2011_4_23_02_pm.gifSincerely. Good luck, G-d bless you.
ERNESTO CUADRAMANAGUA,NICARAGUA. C.A

Jul 17, 2011 | NordicTrack Treadmill

1 Answer

Main power supply failur, how do i replace the part. where do i find it?


Try website like Tvrepairworld.com to buy a refurbish power supply board for the replacement or u have all the tools and know basic electronic and soldering buy a capacitor kit,they put together and replaced those dying capacitors.Capacitors are dying are alway bulging up or puffing up on it tops.

Mar 15, 2011 | Mitsubishi VS-60707 60" Rear Projection...

1 Answer

I have the Mitsubishi Big Screen TV Model number VS-55707. When I turn on the power the light flashes 3 times and will not turn on. It was working great then just stopped. I assume that 3 blinks on the...


Hello,

Your power supply board is not yet dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


I hope this will help in solving the problem....

Dec 20, 2010 | Mitsubishi VS-55707 TV

1 Answer

I have a mitsubishi VS-5043....It shuts off after approximately a hour of watching, can it be repaired?


Hello,

Yes, it can be repaired. There is so much heat inside the unit that is why it shuts off. When the heat gets high, then a component gets melted inside the unit.

The component that is most likely to get bad is a capacitor. Once a capacitor gets bad or melted, it begins to malfunction, like tripping off frequently, and other kinds of problem. Run a check on the power board and the main board for any bad capacitor and replace it with a new one.

Take care and good luck

Dec 20, 2010 | Mitsubishi VS-5043 50" Rear Projection...

1 Answer

Power will not turn on. I tried unplugging and plugging back in and nothing.


wrightthefir,

This model has some serious documented problems. Most are on the DM board but it could also involve the power supply and another board. The electrolytic capacitors dry out and short circuit causing the problems you have. Replacement is an option but it does not always work.

If you love your machine and want to save it the following link has kits which will allow you to replace the known bad capacitors and they supply good instruction sheets. http://www.tvrepairworld.com/

Thanks for using FixYa and for the great rating.

hardrocko

Oct 28, 2010 | Mitsubishi VS-5075 50" Rear Projection...

1 Answer

Mitsubishi vs-60609 will not power on when it is pluged in the green light flashes three times. The manual says this means the microprocessor is functional. I ran the self diagnostic (as suggested in the...


Unplug,replug it an hour later tv now,resetting back to factory setting.Should work now,not than the DM power supply board is dead.Try website like Tvrepairwold.com to buy a capacitors kit to replaced those dead capacitors on the DM power supply board.

Sep 09, 2010 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

Lost picture on plasma tv


Check the power board for any domed capacitors. Replace them. If this does not fix Replace the power board. You can check the voltages from the power board. they are labeled. VS and VA voltages are the panel voltages.

Mar 25, 2010 | Televison & Video

1 Answer

Samsung LN-T2632H won't turn on.


Follow these steps to figure out what problem is.
When you turn on TV, look at the back and see if the back light on. If it is on, the power supply and inverter work fine. The suspection now is main board and T-con board (the small board on the middle-top of the panel)
To find the problem from the main board or not. Look at the power supply and measure Vs on - turn on the TV, this approx 5 vlt DC needs constant once you turn on the TV. If it is drop or unstable - main board problem - replace it.
If Vs on is good - disconnect the T-con cable from the power sup. If power sup stop clicking - T-con need replacing. Hope it help.

Aug 12, 2009 | Samsung Televison & Video

1 Answer

Tv turns off by itself


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Jan 27, 2009 | Mitsubishi VS-55707 TV

1 Answer

Rolling picture


Try replaceing capacitors C2C52 10uf 50V capacitor and also C2P05 100uf 16V capacitor. these are both on the signal board. It that doesnt correct the issue replace IC2P01 which is the 9volt regulator also located on the signal board. That should take care of your problem

Jun 08, 2008 | Mitsubishi VS-50705 50" Rear Projection...

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