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Can the power supply board and a active(pa)/ self powered speaker replaced?

Some Capacitor's exploded on what seems to be the power supply board,.to save myself the trouble can i buy a new power supply board. and if its not a power supply board can you explain to me what is it. thank you

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Yes. You can replace the both.

Posted on Apr 19, 2015


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Power light is on but no speaker output?

Disassemble it enough to get to the speaker to check for continuity. If it's blown, replace it, If not, the amp board is probably blown and needs to go in for repair.

Mar 08, 2016 | Behringer Eurolive B205D Active 150-Watt...



The most common cause of Failure in this unit is power supply failure caused by failed capacitors. A visual inspection is The easiest way to identify and confirm bad capicitors on the power supply. Such a capacitor will show one or more of these symptoms: 1) Bulging of the vent on the top of the capacitor. (The 'vent' is the impression stamped in the top of the can. The impression forms the seams of the vent. It is designed so that if the capacitor becomes pressurized it will split at the seams relieving the pressure rather than making it explode.) 2) Sitting crooked on the circuit board as the bottom rubber plug is pushed out. 3) Electrolyte (a crusty brown substance) leaked onto the board from the base of the capacitor 4) Venting from the top of the capacitor, visible as rust-like brown deposits, or a visible hole in the vent Once the power supply is repaired or replaced your tv should work normally

on Jun 10, 2010 | Televison & Video

1 Answer

The display has gone blank is there a fix

Does the display light up? If so check ribbon cable connection. It is probably attached to display and will plug into connector on board. Maybe just unplug from connector then put back. Also look at capacitors in power supply area to see if any are buldged at top. If so replace with same type capacitor.

Nov 19, 2014 | DBX Driverack-Pa Eq/Speaker Control System...

1 Answer

I am an electronics hobbyist. My Peavey Escort 3000 was not powering up. Prior to this state, the power LED would come on for just a second and then go out. This would happen repeatedly whenever I turned...

Sounds like a regulator IC has blown. if you can replace these and then check the output before putting the caps in you can find out. You may have taken other circuitry out if it was enough over-voltage to cause the caps to blow.

Aug 11, 2013 | Peavey Escort 3000 300 Watt Portable PA...

1 Answer

The system does not power on. When the power supply was opened up, the 50 V capacitor exploded. When replaced, it got very hot and eventually exploded again.


Replace the caps and this time disconnect power supply rails that go to the amp module, then check positive rail for +30V and -30V, if they are present then your power amp ic's that if i remember correct are TDA7293 are blown, or at least one of them, let me know your results.

Aug 10, 2013 | Peavey Escort 3000 300 Watt Portable PA...

2 Answers


First thing you should do is to invest in a really good surge protector for your TV. Then when you replace the capacitor again use a good capacitor. Cheaper is not always better. Rubycon seems to do the best for me. There may be other suggestions, however I have the best luck with them.

Apr 03, 2013 | Computers & Internet

1 Answer

When you turn tv on the power light blinks green picture comes on for a second then goes off then the power light blinks 4 times, also replaced bulb & one of the fans but cannot reset bulb setting...

In that case the power supply of your television have problem.Maybe there's a loose connection in the power supply board or maybe there's a leak capacitor.If you have no knowledge in repairing television and you want to do at your self, first things to do is to remove the back cover of your television.Look the power supply.Remove the screw and the cover of the power supply and try to resolding the board.Check if there's aleak capacitor.The leak capacitor have rounded shape at the top while the good is flated shape.Replace the capacitor with the same value.

Aug 20, 2011 | Televison & Video

2 Answers

The red standby light is flashing and i cant turn the tv on

Ur power supply board is dead.U know basic electronic's and soldering?Most of the times,the power suppply board just have dead leakages gases capacitors.These capacitors alway bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get ur tv power stable,and work again.Or tries websites like, to buy a whole rerfurbish power supply board for the replacement.

May 07, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

My 37'' LCD TV just made a crack sound then no sound or picture but the power light is on, any ideas? oh and a burning smell

I would guess that would be a Philips TV? Most likely a capacitor in the power supply has failed, and that pop was the capacitor exploding. For most sets a new power supply board is around $200+labor, although anyone who can do simple electronics repair could replace a failed cap for less, as long as that is the only problem.

Oct 20, 2009 | Televison & Video

4 Answers

Vizio Pop of Death P50 HDM

its the capacitor on the power board that pop.they over heat its like a computer power supply if you had no fan to keep it cool..replace the capacitors on the power supply and it should work.if you can think of a way to keep the board cooler it wont happen again.

Mar 14, 2008 | Televison & Video

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