Question about Samsung PS42P2S 42 in. Plasma Television

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Samsung ps42c7h no sound no picture only clicking of the relais on supplyboard

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Try to check the transistors in the power supply or diode besides the regulator

Posted on Oct 09, 2010

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I got a samsung plasma tv model ps42c7h doesn't switch on clicking relays what could cause this?


Sustain board/s fault. Contact any service technician.
If you wish to get some details; check the site linked here. Pull up older posts.Surf the site with patience.http://electronicshelponline.blogspot.com/

Aug 04, 2014 | Televison & Video

1 Answer

Can you assist in a Relais Problem on a 1998 Chrysler Town & Country 3.8L


This sounds a lot like a hard short-circuit somewhere. Check for signs of burnt or heat-damaged areas by discolorations or smells. DO not re-connect battery, fire or explosion hazard. If you cannot find short, tow to repair shop , .

Jul 17, 2014 | Chrysler Town & Country Cars & Trucks

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Onkyo tx-sr605 no sound?


Are you connected by HDMI? If so, your HDMI board may be faulty. I was having major drop outs with picture and sound until I got it replaced.

May 14, 2014 | Onkyo TX-SR605 Receiver

1 Answer

Receiver turned off after power on


I can see two possible problems.1: your receiver wants to take too much current and it shuts down the relais to the speakers, or,2: The hold contact of that relais cannot keep it's voltage and shuts off the speakers after a short time.
Check your end transistors for shorts and/or see what the voltage does at this relais. A faulty capacitor perhaps?

Feb 24, 2014 | Pioneer VSX-920-K A/V Receiver

1 Answer

2004 envoy horn don't work but relay is making a clicking sound when you push the horn is it a bad relay or what might the problem be


In the end, I think you will find you are in line for a new horn (or two). The clicking sound means there is electricity getting to the relais.
I don't know your situation, but you might consider trying a used one before you buy a new one.
For example, borrow one from someone.
Maybe you can't.
Be blessed.

Mar 23, 2013 | 2004 GMC Envoy

1 Answer

My screen is dark but the sound is ok


SOUNDS LIKE EITHER THE INVENTER BOARD IS PLAYING UP OR THE POWER SUPPLYBOARD,LOOK FOR FAULTY CAPACITORS.ITS THE BACKLIGHT THAT LETS YOU SEE WHAT IS BEING SHOWN ON THE LCD SCREEN BY LIGHTING IT UP,IF YOU LOOKED CAREFULLY OR SHOWN A TORCH ON IT YOU WOULD SEE THE SCREEN.SOMETIMES IF YOU MANAGE TO TURN THE BACKLIGHT DOWN A BIT BY TURNING DOWN THE BRIGHTNESS ON TV,THE BACKLIGHT WILL COME ON AGAIN,IT IS CUTTING OUT DUE TO LACK OF POWER OR FAULTY CAPACITORS ON THE PSB.DO SOME GOOGLE SEARCHING,GOOD LUCK

Mar 19, 2013 | Sony BRAVIA KDL-52V4100 52" LCD TV

1 Answer

Samsung LCD TV 26


If you have not tried it you may want to see if the voltages listed come up with boards disconnected from the power supply one at a time---This could be anywhere from micro to the panel.

Mar 25, 2012 | Televison & Video

1 Answer

I hv kost a transister nd i dnt now her no i want diagram lcd sharp model no lc37d64u supplyboard model no lc0708-cc


I couldn't find a diagram, but here's a big picture instead.
http://cdn.shopify.com/s/files/1/0054/7582/products/lc0708_4001cc_rdenca257wjqz_grande.jpg?4

Mar 05, 2011 | Sharp Televison & Video

1 Answer

No display, klikking sound from relais and motor is shocking light beep sound from speaker


I had the same thing happen to me, it turned out the the power supply failed. It is located on the right side of the printer. There was a capacitor that blew. After replacing the capacitor the printer started up just fine. You will need to remove the right panel and replace the capacitor. Hope this helps you.

Jan 06, 2011 | Samsung CLX 3160fn All-In-One Printer

1 Answer

Pioneer VSX-D702s receiver - no sound - need help/circuit plan


The unit is in what is called "protect" mode. A problem was detected in the final output stage and that stage is turned off. The most common reason for this is failed output transistors. This is a simple repair for any repair shop and will cost about $10-$15 for parts plus the local labor charge. Expect that the output transistors plus a few supporting parts to be replaced. Most of the time, only one channel is badm, but due to the design of the protection circuit, both channels are turned off.
Dan

Apr 01, 2008 | Audio Players & Recorders

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