New member Username: Jayshriver
Post Number: 2
Registered: Jan-09
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Posted on Wednesday, February 23, 2011 - 15:26 GMT O.K. , I replaced the color wheel, and the ballast and the guy I bought it from said he replaced the bulb. It worked for about three weeks and then started taking more power cycles to turn on. now it just whines from high pitch, slowly dropping in pitch and finally flashes the sevice triangle and bulb icon. Any ideas where to start? I thought power supply but repair guy said over the phone, light engine. When it was on the picture was perfect though. Heres a link to a video I took and put on youtube. http://www.youtube.com/watch?v=Ag7Y3TVf9QQ&feature=player_profilepage |
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Platinum Member Username: Plymouth
Canada
Post Number: 15990
Registered: Jan-08
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Posted on Wednesday, February 23, 2011 - 21:11 GMT Hi Jay!
Is this happen on cold start up?
Be sure that all fans are clean of dust, try a new bulb before the replacement of the light engine, usually the light engine give bad color or distort picture and bad pixelation. |
Gold Member Username: Magfan
USA
Post Number: 2119
Registered: Oct-07
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Posted on Thursday, February 24, 2011 - 21:11 GMT J,
Is the 'whine' a highvoltage noise? If so, I'd look at the last thing in the ballast / lamp chain....the WIRES between the lamp and power supply. IF the connectors are oxidized / burned / discolored, it could be causing high resistance and preventing the lamp from starting properly
Also, look up what the flashing triangle / bulb service lamp means.
My neighbors have a Samsung DLP (fairly early model) which has 3 lamps in front and 'codes' listed in the manual. |
Gold Member Username: Magfan
USA
Post Number: 2120
Registered: Oct-07
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Posted on Thursday, February 24, 2011 - 21:28 GMT Start by making sure you are clean / dust free as plym suggests.
The triangle you refer to has 3 variants which will help figure out what the TV thinks the problem is. Fan? Lamp?
don't just change parts without trying to figure it out first. |
New member Username: Jayshriver
Post Number: 3
Registered: Jan-09
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Posted on Sunday, March 20, 2011 - 06:22 GMT Sorry for not posting sooner guys, my messages have been going to spam folder. "plymouth", It is on cold start up. Progressively, after replacing the ballast and color wheel, it started turning on less and less until it finally just loops three times and gives the error on the control panel. fan is clear of dust and appears to be functioning properly. Heres a better video of what it does on initial start up attempt. Keep in mind new ballast and color wheel. supposedly new lamp. picture was perfect for the two months after i replaced the wheel and ballast.
http://www.youtube.com/watch?v=QqZtcVU5VNI
and theres no way to test the lamp on its own, right? I have a multi-meter. |
New member Username: Jayshriver
Post Number: 4
Registered: Jan-09
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Posted on Monday, March 21, 2011 - 05:34 GMT O.K., here's the latest. The noise was coming from the color wheel I bought online. Can I test the voltage coming out of the DMD board with my multi meter? If so what pins do you think? Will I fry anything if I touch the wrong pins?
Here's the video titled sanding dlp color wheel (gotta love iphones spelling corrector"
http://www.youtube.com/watch?v=t6tnR_uwHsE |
New member Username: Jayshriver
Post Number: 5
Registered: Jan-09
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Posted on Monday, March 21, 2011 - 06:08 GMT Here's some pics of the DMD board that carries power to the color wheel.   |
New member Username: Jayshriver
Post Number: 6
Registered: Jan-09
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Posted on Friday, March 25, 2011 - 01:13 GMT Bump. |
Gold Member Username: Fyi
Dallas,
Texas
Post Number: 1080
Registered: May-05
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Posted on Friday, March 25, 2011 - 14:32 GMT Yea...that's a color wheel whine. Sounds like you got a bad one. |
Gold Member Username: Magfan
USA
Post Number: 2229
Registered: Oct-07
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Posted on Thursday, March 31, 2011 - 02:09 GMT IF you get your multimeter in there to test voltage to the color wheel, THAN manage to bridge a couple of those pins, you'll doubtless ZAP something and end up needing either a board level fix or simply a new board.
I'd suspect FYI is right about that noise......and you'll be into it for another color wheel......
Didn't they change to an air bearing? |
New member Username: Jimdangles
Post Number: 1
Registered: Jun-11
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Posted on Saturday, June 11, 2011 - 19:52 GMT HI, COULD anybody please send me a service manual for and hlp5685w? i am attaching a picture, i have the same problem with that 6 cable cord on the dmd getting its white end cap connector yanked out ( mine is lost too, the white connector), so i guess i could solder the individuals wires (maybe a bad idea heat wise but i don't know the pinouts, ie which white cord goes where, the difference between a white cord with and whitout black text, etc....my dlp seems to start up and everything and the lamp is on the color wheel spinning, but no picture comes on....what does that connector on the dmd work for? it doesn';t seem to supply power to the color wheel, or does it? is that why there is no picture? i seemd to burn a lamp out....its as if something is blocking the light from the lamp before it can light up the screen...is this a physical obstruction, or a result of something not getting power on account of the broken connector on the dmd board? any help is greatly appreciated....are these tv's even worth the trouble anymore? aren't they only 720p and have contrast ratios and refresh rates that pale compared to even a $1,200 55 inch vizio from walmart (240hz, 500,000 contrast ration, 1080p?) |
