Question about RCA Televison & Video

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I have a rca model 40LA45RQ that will not turn on. When you hit the power button the light turns blue but no picture or sound. I tried replacing the power supply board and that did not fix it.

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  • Expert
  • 129 Answers

I agree with The Knight who answered above. You should check to find a main module replacement at:
http://www.shopjimmy.com/rca-40re01tc81xlna0-e1-main-board-for-40la45rq.htm $ 64.51 with a 6 month warranty. Be certain to match the identifying tags on your particular main module. Follow the instructions for PC board Identification that Shop Jimmy provides to be certain that you main module is compatible with the screen variety in your TV

TV Parts Universal TV Stands DLP Chips ShopJimmy

Posted on Apr 17, 2015

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  • RCA Master
  • 73,740 Answers

Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Apr 17, 2015

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  • RCA Master
  • 41,560 Answers

Throw it away and get a new one

Posted on Apr 17, 2015

  • derek ballinger Apr 17, 2015

    Where do you live, I'll make sure to throw it in your front yard

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

ginko
  • 19396 Answers

SOURCE: 42" Vizio - no picture no sound

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

Posted on May 04, 2009

  • 187 Answers

SOURCE: the power light changes from red to blue on the tv

I believe your mainboard need to be replaced.

Posted on Jul 08, 2009

maatmartin7
  • 1208 Answers

SOURCE: magnavox 42mf521d/37 sound but no picture

The solution is the same I used for srjohnnichol, June 4, 2009. I promise you, this will correct your problem. Stop waiting an getter done!

Posted on Aug 01, 2009

rulds2008
  • 3866 Answers

SOURCE: Polaroid 4011-tlxb. Power to tv and it was turning

if you replaced the supply board then there is issues with the decoder board as you would need to chec kthat and see if its not the issue.

Posted on Sep 22, 2009

budmrtn
  • 11361 Answers

SOURCE: FLM-3201 will not turn on

You can download service manual here:
http://www.polaroidsupport.com/polaroid/en_us-sm.html
Look for bad capacitors, burnt parts in the power supply first.
http://en.wikipedia.org/wiki/Capacitor_plague

Please post back what you find.

Posted on Nov 13, 2009

Testimonial: "On the mark about the bad capacitors!"

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