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2007 Phillips DLP HDTV issues
Hello everyone today I found in the salvage bin at work (Goodwill) a 2007 vintage Phillips DLP HDTV (one of the last of the rear projection TVs before the LCD Plat Panels took over) and anyways it seems to have an issue with not wanting to power on, the power/standby light is flashing a blue color and when you first plug it in it acts like its doing the initial power-on initialization steps but then after about a minute the fans and the unit shuts down. Its acting as if it might be a power supply issue but from what I could see the power supply looks like it might be in decent shape yet (no bulging capacitors or anything from what I can see) and the fuse in the power supply is one of those ceramic fuses so you can't really tell if its blown or not, and I even checked the bulb for the TV's projector setup and the bulb was still good so any ideas as to where I should look or how I might go about getting this TV up and running again? I think once I get the power-up issue fixed this will be a nice TV for gaming and even watching movies on.
Any help or advice would be appreciated as this is the first time I've worked on a DLP HDTV, I've worked on DLP LCD Projectors before but not DLP HDTVs. Below are some pictures posted of the unit in question. |
#2
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Run away. Far away. Vintage? No. Worth the time and effort? No. Been there, done that. I would have left it right where it was. I had one of these and they're junk.
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#3
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Quote:
Anyways what went wrong with yours (and presumably with mine if its the same issues and if its the same model)? By the way Philips actually still has this particular TV (the model I have anyways) still listed in their support database complete with an owners manual download and a software upgrade download that is fairly current. The model of mine is 50PL9220D/37 so if it is indeed the same exact model as the one you had what went bad in the unit that caused it to stop working, and is it an easy fix? Last edited by Captainclock; 03-29-2016 at 05:32 PM. |
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DLP only seems to work long term in projectors, they probably have better cooling airflow being out in the open like they typically are. Every single DLP set I've come into contact with would drop a bulb on short notice (even a new bulb), and when it did if it didn't take out the bulb power supply/DLP chip/DLP board/power supply at the same time you were very lucky. I know, I went through it with a brand new Mitsu and I won't go back no matter how cheap one is. Most of the time you might pay up to $150 for one, but guess what? A quality bulb that isn't gonna pop on you right away will cost at least that much- and you have that cost to look forward to probably once a year. IMO go flat, or find a nice Trinitron and don't waste your time.
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Evolution... |
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Anyways I do have a nice Sony Trinitron TV a 27" from 2000, one that I got from outside the Goodwill Dropbox near me (which I offered them a donation for it but they said not to worry about it, this was before I started working for them.) But I just thought that if I could of gotten this thing going it would of been a nice TV but I guess its not even worth my time. |
Audiokarma |
#6
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I have a 44" Panasonic LCD projo set. I KNOW what you mean...by "quality bulb". I FIRST got a "generic bulb" when I got this set about 6 years or so ago...it lasted lESS than a year before it dimmed. after THAT...I put in a GENIUNE Phillips bulb...which I got for an INCREDIBLE price...at the Dayton Hamfest, in 2011 IIRC..and it lasted till just last WEEK..when I replaced it with ANOTHER Genuine phillips bulb..again for a great price. The old one STILL looked great...but had OVER 6K hours on it. I STILL kept it...for a spare... This set is my "daily driver...and is on right now--on ME tv. |
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This set...MAY..i say MAY...be a "DILA " set..which is sort of a cross between LCD and DLP sets I think...and i am not sure it uses a color wheel either. If it IS a DILA set...I WOULD try and get 'er goin. they were NOT real common.
And a phillips bulb...which WILL last awhile...can be gotten for less than $100 every day... |
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It Should have the symbol "DILA" or ILA on it...if it IS one of those sets..
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#10
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I would not pay to junk it, but rather take all the usable caps, power resistors, etc. off the boards, and crunch the rest up till it fits in a bag or two in the trash can....Been doing it for years.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
Audiokarma |
#11
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Usually powering up issues are bulb, ballast, etc. Mine was bulb. Even if they're still good but weak. You only get so many hours out if them and your back looking for another again. Then my dlp chip, usually made by Texas Instruments started going. Had black dots all over screen until I could barely see anything.
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#12
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jr . Last edited by jr_tech; 03-30-2016 at 03:50 PM. Reason: spelling |
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DLP rear projection was just a stop gap technology until larger LCD panels could be manufactured at a reasonable price point.
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#14
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OK so when I noticed that it didn't power up yesterday at work when I tried it out before I decided to take it I should of taken that as a sign that I should of just left it be for the truck to take it, and been done with it I guess. But like I said I didn't know so lesson learned. next time I see a tv like that in the salvage bin there at work I guess I'll just leave it be and not bother with it.
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#15
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Did you check the color wheel? Many times the bearings get sloppy on the color wheel allowing the wheel to hit the case and shatter. It will still spin up, but the tachometer won't read correctly with the wheel shattered and the startup will fail.
On Philips DLPs, it's almost always the bulb or the color wheel. They actually aren't all that bad for a DLP. Be thankful it isn't a Sony. If you get it going and don't like it, maybe you could sell the light engine on ebay. That's what I used to do with DLPs that had broken mirrors or lenses (screens). I don't know if they still sell, but they did about 5 years ago when I was listing them. |
Audiokarma |
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