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I've got a RCA 40" flat screen model 40LA45RQ .I unplugged and plugged it back in and now only have sound. After 2 weeks it stopped working all together...Any idea what's wrong

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: L42WD22- NO SOUND

Found a FIX.... Bought a new Sony ... I will never buy another Thompson product G.E., RCA TTE...None of them. The support is a joke. The "warranty" is as dependable as the product. COMPLETELY WORTHLESS

Posted on May 23, 2008

  • 1 Answer

SOURCE: need code for rca universal

I found this site:

http://www.insignia-products.com/universalcontrolcodes.aspx

which lists the universal remote RCA (model RCU807) code as 135

I just bought one of these TV's last night.

Good luck.

Posted on Oct 03, 2008

  • 5 Answers

SOURCE: polaroid flat screen LCD tv went out

sounds like your powersupply just went out on you tv this will need to be replaced

Posted on May 12, 2009

jumptrout51
  • 3361 Answers

SOURCE: Not cooling, unpluged for few hours, it worked fro couple of weeks, stopped cooling again 2 days ago, I unplugged for few hours, It is working now

Your defrost system is bad. Replace the defrost thermostat and defrost heater in the freezer.

Posted on May 26, 2009

SD Tech
  • 14553 Answers

SOURCE: Coby HDTV Model TFTV 3227 Won't turn on

I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_14_2012_1_18_09_pm.jpg

Posted on May 14, 2012

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1 Answer

I have sound but while I was watching it the screen went black ,now I have sound but no picture.


Turn the tv off and on again and uf it happened again . The power supply board will need to be replaced or the screen itself

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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.


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.

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Rca 40LA45RQ . power light comes on but nothing else (no picture, sound, menu). Unplugging and plugging back in does not work (anymore).


Mine is doing the same thing. Drives me crazy. Usually turns on in the morning, but not at the end of the day. Makes no sense.

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Samsung 40" flat screen looses sound


this problem started on my LN-S4051D a couple of years ago. eventually the sound stopped working altogether. I then started using my surround sound speakers for the TV via optical out but soon that stopped working as well. I recently took the TV to a repair shop who said that the main board is bad and needs to be replaced. Labor plus parts was going to cost me $400. I said no thanks and paid for the estimate. Good luck.

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probably your cable or sat box malfunctioned. try unplugging the power for 2 minutes and then plugging it back in. my cablebox would do that to me all the time. let me know if this doesn't help. check sound on dvd or other sources to narrow that down.

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My 42" flat screen RCA t.v. won't turn on?


I find that if you unplug the cord from the connection to the TV and not the electrical outlet that it should work again but will happen often after. So far everytime I've tried this it works. Hope this helps you out!

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