I have tried everything with my Samsung HL-S5087W

[Francis]

My friend gave me his Samsung HL-S5087W DLP tv for free because it wasn't working. He showed me the problem with it when I went to pick it up. It would turn on and you could see the screen so the lamp was working initially, but then it would shut off after less than a minute and the three front lights would flash. Awhile back he had broken the door switch but he taped it closed so the tv still continued to work.
So brought it home and looked into DLP tv's. I replaced the lamp and it still didn't work. But at this point the lamp didn't even turn on at all. I even installed the old lamp and still nothing. So it went from turning on and seeing an image to no image at all. So then I replaced the color wheel. The color wheel that was in there looked in good shape which scared me. The power connector going to the little board that powers the wheel did look a little damaged so I took it to work and got it re-soldered.

Anyway, it still didn't work. I would hear a slight whining noise coming out of the back, but I could here the color wheel spinning and it sounded fine. So I checked the power supply and the ballast. Aside from lots of dust, they looked in good shape. I didn't see or smell any component that looked damaged. But I bought a new ballast and replaced it. Sure enough, it still doesn't work. I have checked every single connector inside there. Obviously the power supply is working unless the circuitry that powers the ballast is bad. The only thing I can think of is that there is something wrong with the CPU that is keeping it from signaling the ballast to turn on. I really am running out of ideas here. I have checked every single connector and wire. Everything else looks good. Can anybody help? Thanks very much! :evil:

[ChubbsTech]

Hello Francis.
So you have already replaced lamp, ballast, and still nothing. My first question is, have you reset the lamp timer, if you don’t know what that is let me explain. Inside the tv there is a small program that keeps track how many hours the lamp is turn on, when it reaches a predetermined limit it will shut the TV off for safety reasons. How ever is you installed the new lamp and haven’t reset the lamp timer, the TV will still think it has the old lamp, thus shutting the TV or in you case preventing it from turning on.
Here is a link for an early thread that includes the instruction fro resetting on most Samsung TVs.
viewtopic.php?f=10&t=1050

How ever if that doesn’t fixes your problem there might be an issue with the slight whining noise.
When you hear that is normally the color wheel or a fan that are malfunctioning, to discard the fans try placing a house fan where the lamp is located on the back and see if it turns on, if it dose then a fan is not cooling enough the internal lamp.
The other probable cause of that noise is the color wheel that may be misplaced from its central bearing and casing the wheel to make contact with the housing just enogh to not spin at a minimum RMPs that the DMD requires to keep the TV on, otherwise it will shut it of.
Good luck.

[Francis]

[ChubbsTech]

Hello again Francis.
You don’t need the tv turn on to reset the lamp timer, first of all read the instructions that are provided on the link I posted above.
Here is the link again.
viewtopic.php?f=10&t=1050
Good luck.

[Francis]

Thanks Nightkid. But yep I reread the instructions and tried it several times. No menu displays at all. Do these tv's have a way of displaying a menu even with the lamp not turned on. Or do you know of a manual way to reset it on the CPU? I really don't know what else to do with this thing.

[Jason1976]

Does the tv make the start up sound?

[Francis]

[Jason1976]

I am guessing something is wrong with the digital board. since it looks like you replaced everything else. only way to know for sure is to have a tech look at it.