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Rca l42fhd37yx8 no sound or picture put a new power board in didn't help

Still have no picture or sounde

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  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: from max tv

ok is the monitor u need to replace the lower board of the tv and thats it and u are done enjoy

Posted on Feb 28, 2008

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SOURCE: dell w1700 power and no sound or picture

I have a Dell w1700 tv/monior and the problem is i have no picture or sound, but power led light-up

regard
Mark

Posted on Jan 26, 2010

  • 132 Answers

SOURCE: Polariod FLM 3232 no sound

The audio circuit is located on the main board. You might be able to find one on ebay or shopjimmy.com. Just search your model number and look for main board. Just look at the pic and make sure it looks like yours before buying one.

The most common problem for no audio on this set has been a 10ohm resistor located on the top right corner of this board that fails. The location number is r385, which will be stamped on the board beside the resistor. If it's open(bad), you could change it and save a lot of money.

Posted on Jul 30, 2010

  • 4 Answers

SOURCE: RCA L42FHD37YX8 no sound or

I hope you still have this TV! Your problem is with the power supply, There are three transistors on the power supply that you should change (Costs approx. $0.45). These are adjustable precision shunt regulators. I believe they are labeled IC IC7, IC8 and IC9 which are all the same transistor (part no. TL431AC). While you have the board out, make sure that none of the capacitors are swollen/bulged; if any are, replace.

Posted on Dec 23, 2010

SOURCE: My HP PL4260N doesn't show

surely there is problems with the lcd controller... you need a qualified technician to check the power consistency in your lcd controller.

Posted on May 27, 2011

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1 Answer

Rca 46la45rq has backlight and power but no sound or picture replaced main and inverter boards


Was this the original problem before replacing the main board?
Maybe you have to set the new main board from maintenance menu. Sound and image comes from the main board, so i believe it has to be something about it...

good luck

Aug 31, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

I have a rca tv that has sound but no picture where do i start


It is ur backlight inverter board.... they are about $150 new to replace.... but the main problem is the capacitors in the board that is well known to blow on rca lcd tv's.... they cost around $2 a piece u will need 2.... make sure they are the right numbers. my was 470uf /35V.... or it will be cheaaper if u brought it to a component place to have them replaced...

Dec 05, 2011 | RCA L42WD22 42 in. LCD Television

1 Answer

My RCA R52WH74 chassis # ITC222A wont turn on. The green power light comes on for about 10 seconds then shuts off. No picture, no sound. How do I fix it? Buying a new TV just isn't in out budget!


That model is famous for having issues with the deflection board failing. Replacing the deflection board should solve the issue. You can get replacement deflection board for the ITC222A chassis from www.tvrepairworld.com under the RCA circuit boards catagory.

Aug 05, 2011 | RCA R52WH73 Projection Television

1 Answer

My old 32 inch rca f32665 stopped working as we were watching it. no picture or sound and there is a sound coming from the back where the power cord goes in that sounds exactly like a cricket only its a...


The usual cause is a shorted horizontal output transistor. The way this chassis is designed, the supply makes 140 volts which is always on and applied to the transistor. The heavy load on the power supply causes it to make that chirping sound as it keeps trying to start, then shuts down right away.

The h-out is Q14401, RCA part number 237470. A 2SC5148 can replace it.

Jul 31, 2011 | RCA F32665 32" TV

2 Answers

I have a 52 RCA flat screen that the sound works but the pic doesn't. I can hear a clicking sound and then the power button light starts flashing


This RCA projection tv model have known to have many parts of capacitors components are dying and dead on the tv power supply board.That the board section where the tv power a/c cord plug into it.U have all the tools and can do bsaic soldering work too?Yes,try website like Tvrepairworld.com to buy the capacitors compponents set they put together and replaced all these capacitors parts on the tv power supply board section,will solved this problems.

Jul 06, 2011 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

RCA L42FHD37YX8 no sound or pic but the blue light on the panel is on and when you press bottens on the remote the light flashes as it always has.


I hope you still have this TV! Your problem is with the power supply, There are three transistors on the power supply that you should change (Costs approx. $0.45). These are adjustable precision shunt regulators. I believe they are labeled IC IC7, IC8 and IC9 which are all the same transistor (part no. TL431AC). While you have the board out, make sure that none of the capacitors are swollen/bulged; if any are, replace.

Oct 01, 2010 | RCA Televison & Video

5 Answers

Rca L32hd31 lcd no picture blank screen.


Your mainboard is damaged, replace it and that will solve your issue.

Jun 06, 2009 | RCA L32HD31 32 in. LCD HDTV

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