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cdy said in January 17th, 2009 at 11:41 am

Dave – did you ever swap out the main board on your LVM-37w1? What symptoms were you having?



Dave Dugdale said in January 17th, 2009 at 11:45 am


I have not done it yet, I am turning it off and then on again after it dies after a half hour of use. Then it works again.

I have heard from others that have replaced the power supply – that it started doing it again after some time.

So I am thinking of getting a new set all together because to have Bestbuy fix it would be around $800!

cdy said in January 18th, 2009 at 11:02 am

Thanks for the reply. I’ve been scouring the web for several days now trying to find a clear resolution for my issue:

When powered on, the display lights up for a few seconds, just long enough to show what the input is in the top right corner of the screen(vga,dvi,svideo,etc..) During this period the power lcd color is BLUE. The display then goes dark and the power lcd light turns AMBER as if it is in hibernate mode. There is also no sound during this time.

Most forums say it’s the DPS-336AP power supply board, which btw can not be purchased new anywhere. Heck, I couldn’t even find a used one, not even on ebay or which is where other folks suggested. There is also a POWER SUPPLY 90-264VAC L3 Part Number: 4900211780 available out there for this unit but no one could tell me if it is the same as the DPS board or not.

I decided to call the Westinghouse tech support folks to see if they knew of a replacement for the power supply board and to give me their opinion of what the problem could be. They said based on the trouble description, and their experience, it is the main video board (which is actually what you have listed above), not the power supply. So, I’ve decided to take their word for it and I’ve ordered one from (at least it’s brand new and has a 30 day return policy if it doesn’t work).

It’s not hard to replace these components yourself since everything in modular. There’s just a lot of screws and connecterized cable assemblies. I took some digital pix as I went along for reference just in case.

I’ll let you know how it turns out if you’re interested.


david said in February 8th, 2009 at 9:20 pm

Chris, did you ever get your TV working again? I have the same problem but don’t want to buy a $200 power supply and have the same problem happen again in a few weeks.

Dave Dugdale said in February 8th, 2009 at 9:25 pm


I am in the same boat too, I have been dealing with this issue for months now and not sure if I should buy a new one or just try to install a power supply.

cdy said in February 19th, 2009 at 1:38 pm

I have yet to receive the part! I was originally told by parts direct it would ship w/in 4 – 6 days from the order. Then the date changed to 1/30, then to 2/18, and now it’s 3/30! Not sure when I’ll get it at this rate but when I do I will update here.


Dave Dugdale said in February 19th, 2009 at 1:42 pm

I have heard the main issues with LCD’s is the power supply and some have fixed theirs with a couple of capacitors for a few bucks. This issue is which two to replace.

macgough said in April 12th, 2009 at 7:26 am

I have a LVM-37w1 that started screwing up last week: Horizontal lines going across the screen (looks like a old TV where the horizontal hold has been turned all the way). It would correct itself if I turned the TV off for a bit. Now, it does it constantly. The LCD is about 3-4 years old and Westinghouse told me that the panel was dead and that it would be too expensive to repair. I know own a 37″ paper weight. I really expected this LCD to last, at least, 8-10 years.

Dave Dugdale said in April 12th, 2009 at 4:34 pm

I am very disappointed as well, I thought I would get 10 years out of it, not 3!

tech29 said in September 1st, 2009 at 9:14 pm

chris did you ever get your part we all would like to know how it turned out :)

tech29 said in September 1st, 2009 at 9:19 pm

my tv turns on and stays on but only a/v input svideo works the ypbr no go on 1 or 2 ypbr, also when its on red green dots all over the screen. You can see a picture not sure if its power supply problem if nothing hooked up to inputs the tv turns of after 53 sec.

iwalkathinline said in October 1st, 2009 at 9:37 pm

Wow I’m glad to know that I’m not the only one having issues with this set! I really love the picture I got from this display, but had no idea it had so many issues! Can anyone help me with figuring out what the issue is with mine? I don’t have any idea about the different parts… I’m in the IT industry so I should be able to pick it up pretty quick. Yall’s help is appreciated!

iwalkathinline said in October 1st, 2009 at 9:38 pm

It’s too bad Chris seems to have disappeared… Hopefully he’ll show up again soon! It’s been 7 & 1/2 months though… :(

Dave Dugdale said in October 1st, 2009 at 9:43 pm

I am still using my set, i have found if I let it go after the screen turns off that it will turn back on it about 2 minutes and after that it will stay on for hours.

Bkm72 said in October 29th, 2009 at 12:17 pm

I have the same set, and after doing some digging I came across your site. I purchased a replacement power supply from Discount-Merchant….didn’t fix it. Sent the power supply back for an exchange…..still didn’t fix it.

Here is where I am now: Discount-Merchant told me to have the TV looked at and diagnosed (Best Buy does it for $35). They will be able to tell me what the problem is, then call Discount-Merchant back to get the proper part. I’ve spent $170 so far on the PS.

I’m so disheartened that the TV only last 3 years. I also afraid that my living room set will suffer the same fate (52″ Westinghouse). I’m seriously considering selling it and taking a loss to buy a better supported TV.

Dave Dugdale said in October 29th, 2009 at 1:07 pm

I am still suffering with this issue. I guess I am going to wait until the new LED-Lit TV come down in price.

wpoland said in November 24th, 2009 at 7:12 pm

I’ve got this set, and I’ve experienced the blanking a few times in the past, but not recently. My problem is excessive fan noise if the tv has been on for a while. It has been happening for so long, I’m surprised the fans still function. Curious if anyone has looked inside the unit to see if the fans are replaceable.

Dave Dugdale said in November 25th, 2009 at 8:13 am

I didn’t even know this TV had fans on it, I have never heard them. Perhaps that is what is causing my TV to blank out.

wpoland said in November 28th, 2009 at 5:04 pm

It sure sounds like a fan, and I saw info a while back on a backlight fan, and backlight over heating.

I may take the tv apart this coming week to try and locate them and then source replacements.

SEGreen said in December 15th, 2009 at 2:37 pm

We also have a Westinghouse LCD that after 4 years of moderate use turns off periodically. I found that a fan blowing on the back side will keep it from shutting off.

wimry said in January 30th, 2010 at 7:58 pm

I also own the Westinghouse LVM-37W1 and have suffered thru the same frequent ‘blackouts’. Mine also worked continuously after going out 2 or 3 random times. Recently, it took much longer to come back on (overnight in some cases) and no longer works. I requested help from Westinghouse but their phone is out and they don’t answer email. My repair guy said power still coming thru so figures main board is the problem but he can’t find part (#5600110382 – discontinued) and recommends buying a new LCD. I figure I got less than 5,000 hours out of it. Just enough to outlast my 3-yr extended warranty.

Dave Dugdale said in January 30th, 2010 at 9:30 pm

I gave up on it and got a new Sharp LED TV and moved the crappy Westinghouse to a bedroom where it will not get much use. I can tell you I will never buy another Westinghouse product again.

Randall said in March 13th, 2010 at 7:23 pm

Our 37″ lcd Westinghouse is dead. Backlight comes-on for a second.. then dead. Sounds still one.. Have it taken apart to look for backlight location/replacement before any other action.

This TV sucks.

Patrick said in June 5th, 2010 at 9:01 pm

I have fixed this exact issue on my Westinghouse lvm-37w1!!!

I experienced a blank screen while the blue power light would remain on. The audio would also stop working.

Turning the tv on and off worked for a while, but it finally gave out. The blue light would come on, but no audio or video.

Short story: It was a power supply issue.

Long Answer:
To fix the issue remove the back panel

Remove the screws from the plastic cover (you have to remove the 2 large metal rods at the bottom of the tv once removed from the stand – The screw is in the middle of the rod)

Remove the top and bottom metal covers (they cover the main board and the power supply)

Take the 4 screws out holding either board and surrounding connectors.

In my case, there was a bad solder joint on the power supply. I was able to narrow down the issue when the back was off the tv, I could see a light flicker behind the psu when turning on and off.

Mine was in the middle under a grey relay (or so it appears)

I reflowed all of the larger joints around the bottom of the board and the TV is back working like new.

I spent plenty of time researching this issue and never found an answer. I hope it helps someone else rescue theirs!

Dave Dugdale said in June 6th, 2010 at 7:58 am

@Patrick, thanks for posting this I might have to give that a try.

Daniel said in July 24th, 2010 at 12:29 pm

@Patrick, thank you for the suggested fix!

@Dave Dugdale, were you able to try Patrick’s suggestion? If so, how did everything turn out?

Thanks in advance!