Question about Westinghouse TX-47F430S 47 in. LCD TV

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My westinghouse "46 wont turn on...is it the power supply and can I replace it

Westinghouse "46 LD4680 will not power up...was working fine yesterday but today will not work. In the past 10 months it has acted suspiciously when powering up, but once or twice, it came unplugged by tilting the tv back and forth because its mounted on the wall. since I discovered this, I secured the ps using 2 zip ties plus secured the cables as well.

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  • Westinghouse Master
  • 8,617 Answers

It sounds like the power supply is having an issue. Yes its easially replaced no special tools required just a screwdriver. You can get the power supply board from www.tvcircuitboards.com

Posted on Feb 10, 2013

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Chris Stone

  • 1 Answer

SOURCE: westinghouse tx-42f430s won't power on

Hello I have a Westinghouse TV model number TX-42F430S Sometimes it comes on and sometimes it does not. It has an orange light in the center below the W emblem in the center of the TV. when the TV actually comes on that same light is blue Is this the reason that the TV will and will not come on sometimes? is it a power issue mayb a power circut issue???

Posted on Aug 07, 2011

freetek

Steve Allison

  • 5569 Answers

SOURCE: No power on Westinghouse LTV-46w1 Television

This kind of failure is very common; that is why I suggest that one should keep the old CRT TV, buy a converter and put them both in the garage or basement so they are handy when our s*e*x*y new sets go belly up.
With fair confidence I can say that the main power supply has failed.
If you want to try this on your own, it only will require the removal of a few screws and a flashlight.
- Unplug the set overnight. - Remove the rear housing  - Use some logic and these tips; look for a separate board with larger than average parts on it and seems closer to the power cord than others. This will be the power supply.
Check the board over for something that looks like a part number and record it. If you find more than one, one of them will be the bare board number, the second (sometimes on a sticker instead of printed directly on the board) should be the part number for the assembly.
Search for the Westinghouse service company nearest you and call them with this info. Ask if they repair these or just sell new ones. If it is the latter, don't pitch the old one, continue to look for a repair service that will take it on after you have the new one in place and can watch your favorites again. The new supply will likely cost between $90 - $150 and with a little common sense, most anyone can remove and replace these in the set. Expect any repair to cost about the same as a new supply; US technical labor costs more than Chinese assembly labor. 
These supplies can be as reliable as the primitive older type but companies refuse to use the high-grade components necessary to give them a long life so they fail much sooner than the old, less efficient kind known as 'linear' supplies.     

Posted on Mar 22, 2009

Anonymous

  • 92 Answers

SOURCE: westinghouse 30" lcd tv has no sound no picture,but green lighton

Replace the Power Supply.

Posted on Sep 06, 2009

Anonymous

  • 4 Answers

SOURCE: westinghouse sk19h210s won't power on. service

I just fixed a neighbor's by replacing the 2200MFD capacitor on the power supply board. Thanks for the help, worked great. If you replace it got for a 16V instead of the 10V and hopefully it won't fail that way again.

Just be careful and take notes when you're digging into it. And mark exactly where the card cage is before taking it loose.

Posted on Sep 19, 2009

Jim Krause

  • 1779 Answers

SOURCE: Just bought a 40" Westinghouse LCD tv yesterday

Best advise: RETURN THE SET !

Posted on Nov 28, 2010

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My Westy 47 TV has a very strange power-up problem! First, I found that the power supply was bad, I couldn't repair it, so I bought a replacement from ShopJimmy. The replacement seems to be working fine, and sometimes the TV works fine. The little green LED near the bottom edge of the controller board lights up when you connect the AC power, as it should. There is also a small green LED near the upper edge of the controller board that apparently lights only up when the controller is working properly. I've replaced the 470 mFd, 16 V. 'Lytic on the controller board, as everyone says to do. I still observed about 0.8 Vp-p of digital signals on the 5 Volt buss with the replacement capacitor these signals looked kind of like a 300 kHz clock and some other misc. digital stuff, so I added a couple of 0.1 mFd disc ceramics directly across it on the bottom side of the board. That reduced these signals to about 0.4 Vp-p, but the TV still won't turn on. The orange pilot light on the front is lit, but neither the buttons nor the remote will turn it on. The only way I can get the TV to turn on is to do the following: 1. disconnect the two power cables going to the two lamp inverter boards; 2. plug the AC power cable in. The 2nd green LED on the upper portion of the controller board now lights up when AC power is applied. 3. plug in both power cables to the two inverter boards while the power is on. The TV now works fine - all of the lamps light up, good picture, blue LED on the front panel, the remote works, etc. However, if I turn the TV off, and try to turn it back on, the small green LED on the upper controller board goes off, and the set won't come on! I've tried holding the on/off button down for over 10 seconds I read that this might re-boot the controller to no avail. The only way to get it back on is to go thru the 3 above steps again. I've read that there appear to be several versions of the firmware, and I wonder if this might be a firmware problem. If so, how/where can I get the proper firmware to install? Any suggestions? HELP! Please If someone would like to call me, please do at ************. Thanks, Gary W3DTN

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