50pl9126d/37 tv repair


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50pl9126d/37 tv repair

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drjplus
New User

Oct 13, 2012, 3:42 PM

Post #1 of 13 (5522 views)
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50pl9126d/37 tv repair	Can't Post

I have an 50pl9126d/37 Philips Projection TV that just quit working and I'm exploring whether it is repairable or not within reason. It has a loud hum with a picture that resembles a marble/granite counter top then it shuts off after awhile. Any ideas? A service manual (schematic) would be helpful.

(This post was edited by drjplus on Oct 13, 2012, 6:51 PM)

Ron.M
Veteran

Oct 18, 2012, 7:28 PM

Post #2 of 13 (5499 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

drjplus;.....

If you haven't gotten a service manual yet , I may be able to help....

http://servicetron.com/philips-11.html

Scroll down about half way to your model number...
Click on that to start download OR , just click on the direct link below...

PHILIPS 50PL9126D/37 CT2.0U********************* DOWNLOAD

(11.9 MB file)

Also , IF you can post a pix , I may be able to give you further assistance...

You're welcome.... Sly

...

Later...Ron.M.... Cool

...
Veteran & Retired TV technician

(This post was edited by Ron.M on Oct 18, 2012, 9:42 PM)

drjplus
New User

Oct 27, 2012, 3:25 PM

Post #3 of 13 (5461 views)
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Re: [Ron.M] 50pl9126d/37 tv repair [In reply to]	Can't Post

Thanks Ron for the service manual. I was on vacation right after my post and only now am getting back to see the response to my post. I looked through the service manual last night and must say that it is a bit intimidating as I haven't worked on anything this complex in years and don't have any test gear to speak of. I only have a Fluke Multimeter as I gave my scope to my son as he is doing some repair work on musical equipment. However; I may give it a shot as we shot our budget for our vacation and don't have the funds to replace this TV right now.

drjplus
New User

Nov 1, 2012, 3:08 AM

Post #4 of 13 (5435 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

It looks like I may have a bad color wheel. Next step is to verify it which I will do this weekend and find a good buy on a new color wheel. Any ideas where to get a good by on a new color wheel?

Ron.M
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Nov 1, 2012, 6:24 PM

Post #5 of 13 (5427 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

drjplus;...

Maybe....

What part of the planet do you call home ????
Post a part number & I'll see what I can do....

Later...Ron.M.... Cool

...
Veteran & Retired TV technician

jts1957
Veteran

Nov 1, 2012, 8:07 PM

Post #6 of 13 (5423 views)
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Re: [Ron.M] 50pl9126d/37 tv repair [In reply to]	Can't Post

Why do you presume he's on THIS planet? Wink

-------------------------
Location: Far, Far Away

drjplus
New User

Nov 2, 2012, 2:01 PM

Post #7 of 13 (5413 views)
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Re: [Ron.M] 50pl9126d/37 tv repair [In reply to]	Can't Post

I haven't verified that the color wheel is the problem and thus have no part number as yet. I hope to take it apart today and verfy whether the color wheel is the problem or not. I'll post my results when I have some. I'm in the midwest, Illinois.
Got the light engine apart and it is in fact the color wheel, it's shattered. The bar code on the wheel is 72CA109G001A6271523, the numbers on the ribbon cable are 175559A020 N26619. Any help will most gratefully be appreciated.

(This post was edited by drjplus on Nov 2, 2012, 2:48 PM)

Ron.M
Veteran

Nov 2, 2012, 6:21 PM

Post #8 of 13 (5398 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

jts1957;....

Quote

Why do you presume he's on THIS planet? Wink

His posts actually make sense !!!!... Shocked

...

drjplus;.....

I did not download the manual...(11.9 MB file on dial-up would take me to Thanksgiving day to download).... Crazy

...
Is there a "DPTVxxx" number on the cover page of the Service Manual ???..
IF so , please post it...THANKS... Smile

....

You might want to try looking in the Service manual for the part number...
Make sure you are at your model number in case the manual is for several models....
There may be differences , albeit slight , for different models even tho the manual covers a series of models...
Not sure that the numbers you posted for the wheel are good for a replacement..
Usually Magnavox/Philips have a 12 digit part number...
I think you have to get the complete light engne assembly...
To my knowledge , you can not get just the wheel itself... Unsure

...

Later...Ron.M... Cool

....
Veteran & Retired TV technician

drjplus
New User

Nov 2, 2012, 11:29 PM

Post #9 of 13 (5393 views)
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Re: [Ron.M] 50pl9126d/37 tv repair [In reply to]	Can't Post

I got the manual from the link in your earlier post. Yes you can get the color wheel by itself though I'm not sure if I can get the right one for my TV. Replacing the light engine is out of the question as it is too costly. If I cannot find the right color wheel, I'll just scrap this TV and replace it. Thanks for your help thus far.

Ron.M
Veteran

Nov 3, 2012, 2:42 AM

Post #10 of 13 (5383 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

drjplus;.....

Quote

"""I did not download the manual......(11.9 MB file on dial-up would take me to Thanksgiving day to download).... Crazy

...

Is there a "DPTVxxx" number on the cover page of the Service Manual ???..
IF so , please post it...THANKS... Smile

....

Quote

Yes you can get the color wheel by itself though I'm not sure if I can get the right one for my TV..

IF you'd post the above info I asked for , I MAY be able to help....

Later...Ron.M... Cool

...
Veteran & Retired TV technician

drjplus
New User

Nov 3, 2012, 3:10 AM

Post #11 of 13 (5379 views)
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Re: [Ron.M] 50pl9126d/37 tv repair [In reply to]	Can't Post

Sorry, I didn't understand your post or what you were asking for. No there isn't a DPTV### on the front page of the service manual, it just says CT2.0U RA in the upper right hand corner. <br>

I found a replacement color wheel that appears to be the same as my color wheel. Once it comes in I'll post whether it worked or not.

(This post was edited by drjplus on Nov 6, 2012, 1:08 AM)

drjplus
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Nov 13, 2012, 8:41 PM

Post #12 of 13 (5271 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

My Color Wheel came in this morning and I'm hoping to install it tonight to see if this fixes the problem.

drjplus
New User

Nov 14, 2012, 2:55 AM

Post #13 of 13 (5263 views)
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Re: [drjplus] 50pl9126d/37 tv repair [In reply to]	Can't Post

Success! The color wheel was the problem and my TV is working again however; it has a spot near the middle which the color wheel supplier says that it could be a speck of dust on the lense or DMD Chip. Another problem with the TV is that periodically the sound volume goes really low so that I have to turn the volume up to 75% to get a normal listening level of 35%. This morning the sound completely went away. Troubleshooting this issue I thought that I would try to update the TV software when I discovered that the usb on the tv isn't standard. Then the sound came back to normal. I'm not sure about this issue and am trying to decide whether to pull the TV back apart to clean it to see if the spot goes away. The spot is only noticable when a light color is on that part of the screen.

(This post was edited by drjplus on Nov 16, 2012, 4:36 PM)

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