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Resist58

Here it is almost the end of 2017 and I still have this 2003 TV. Recently had to replace the color wheel and lamp again, powered it up and the colors were missing off. Turned out the light tube had collapsed apart. Luckily Samsung still had those in stock. Put it all back together and it worked grea...

Resist58

Now the TV is working fine again. But seems to have the issue if not turned on for a few days. I would love to replace the DMD board but can't find one anywhere. It really would be a shame to trash this TV, as the picture quality is still great. Any suggestions of where I can find the correct DMD bo...

Resist58

After several years, this issue has started again. Only this time I can't even get a picture. There is sound but the screen is blank, yet the bulb works. Sometimes after a few minutes the TV shuts itself off and all the lights in the front flash. I then have to unplug the TV and plug it back in to m...

Resist58

Well my TV is still operational. I haven't gotten around to cleaning and flipping that light tube though. Still having the issue when if it's not used for days at a time and then turned on the screen will be black or scrambled. If I unplug the TV for a few minutes and plug it back in then it seems t...

Resist58

1) No.

2) Yes.

Resist58

The jumper thing is only if you replace it with a non OEM color wheel, not an OEM color wheel. I've replaced the color wheel on my HLN617 and never did anything to the jumper.

Resist58

Would a symptom of a failing bulb show up as not being able to correctly produce very high contrast test patterns? It is my understanding the curve for the lamp drops off sharply at the end of their life. This means they pretty much retain their brightness throughout their entire life until right n...

Resist58

A few nights ago I turned on my TV and the picture scrambled and then went dark. The bulb was still working and there was audio. Usually when this happens if I unplug the TV, plug it back in and turn it on, it usually fixes itself. Didn't work this time, so I ended up leaving the TV unplugged for ar...

Resist58

In the past I would unplug TV when after turning it on and the picture was all scrambled, but this time it didn't work so I decided to leave it unplugged for much longer and now the picture is back. Very strange, just hope it lasts.

Resist58

Due to the grinding sound, I think your color wheel needs replacing.

Resist58

I am having a similar problem with an older HLN617 DLP TV. The lamp and audio work fine, yet the screen is dark. I have no lights on the front indicator panel, which means there is a problem because one light should be on. Every so often the picture scrambles, then goes blank again.

Resist58

Our almost 8 year old Samsung HLN617 started having a problem recently after turning it on, the picture goes dark yet the lamp is working. The are no lights on the front indicator, but the audio works. Every so often the dark screen shows as horizontal and vertical blocks of mostly green color. Is m...

Resist58

It's time to replace the bulb when it burns out, not anytime sooner.

Resist58

I still haven't gotten around to trying this fix. Guess I'm hoping someone else will first.

Resist58

Just purchased a pdf form of the service manual online. I found an entire page that might fix our problem. It suggests blowing out the light tunnel, (located behind the color wheel), and states that then it should be reinstalled in reverse. This is because dust can settle on the rear part of the len...

Resist58

I am very glad I started this thread and find out I was not alone in having the same issue. I just hope there are enough of these TV's out there still working, so we can get to the bottom of this. It's looking more and more like (as I initially thought),the use of canned air caused dust or debris to...

Resist58

Bubby wrote:I'm afraid to take it apart further than I have since I don't know what happens after the lens.

Well then hopefully we can find some pictures online about how to take that area apart.

Resist58

Now I'm thinking there's dirt or dust up where the lens shoots? We seem to have something in common in that we both sprayed canned air in our sets when working on them. Finally I found someone with the same issue! I'm thinking that maybe debris got sprayed into the light tube that is just after the...

Resist58

Yes but which light engine is the correct part number for my HLN617 TV? There appears to be several different part numbers for my TV. Not so sure spending this much money is worth doing on a 7 year old TV. I have already spent $80 for the replacement color wheel and $110 on a new lamp earlier this y...

Resist58

Give what a shot? Replace the DMD board? As I stated, I can't find one anywhere. If you meant to dust the TV out, as I stated I already did that when I replaced the color wheel. I thought I had all the glass cleaned really well, but may not have gotten all the broken color wheel particles. Not reall...

Resist58

I agree replacing the board myself is easy to do, just time consuming. The only problem is I can't find the part anywhere. I have checked Discount Merchants and they don't have it for my TV, HLN617 model. I'm sure if they did it would be very expensive and for a used part that is just crazy. It's st...

Resist58

Not sure what you are saying "really?" about. I have already explained to you that I am not getting dark spots or spots that are pixel size. These are larger light shadow spots or circles. But, if you take a good look at the picture I posted you can see the majority of the circles are in the center ...

Resist58

I understand how the micro mirrors work. But I would think if they were not working then it would effect the picture when content is shown. And as I said, the picture is fine, even perfect. The issue only shows up during a dark screen, as if debris is reflecting light. I never had this issue prior t...

Resist58

They are not dark spots, they are gray. But if they are caused by "dead pixels" then why does it not effect the picture, other than when the screen is dark? Are you sure it couldn't be shadows from debri, due to the previous shattered color wheel? I thought I got all the glass but might have missed ...

Resist58

Anyone know what these spots are from?

Resist58

It is important to also know what happened prior to the TV not working. What sounds did it make?

Resist58

Just added a 37" Vizio E371VA 120hz LCD TV to our home. I have two issues that I don't like about it. Firstly, the Vizio logo on the front stays on (dimmed), when the TV is off. In this day and ago of energy consumption, it makes no sense to me that Vizio would create an energy vampire. Secondly, I ...

Resist58

Have you pulled out the lamp and to make sure it hasn't failed? Have you tried unplugging the TV from the outlet waiting a few minutes and then plugging it back in?

Resist58

Darkart77, The poster already stated he replaced the ballast. Dallaswinn, The parts you have replaced were the most cost effective and logical. But at this point the issue may be a blown capacitor on a circuit board or other board component like a cracked solder connection. Replacing the boards gets...

Resist58

Here is a picture of my issue.

Resist58

In that video the guy posted that he fixed the issue by replacing the bulb. So I would suggest you try replacing your bulb.

Resist58

Talos04, I don't think we have the same issue. I have shadow spots, not rings or red pixels. I think my issue is dust on a lens or the DMD mirrors, that is reflecting shadows to the screen. But as I had stated, you can only see them when the screen goes dark. I will try to post a picture of them.

Resist58

Besides using compressed air, I used double sided scotch tap on a small flat head screwdriver, to get the glass out.

Resist58

Prior to the color wheel shattering apart, the screen went blank and got the 3 flashing lights on the front panel. A zapping sound (or so I thought), could be heard behind the TV. My initial thought was that my 6 month old lamp had failed. But after pulling the lamp out, it looked fine. So after tak...

Resist58

I just replaced my shattered color wheel and used a compressed air can to blow out a lot of dust from inside my 2003 Samsung HLN617 DLP TV. After a bit of picture scrambling the video now is fine, except for some spots showing up when the picture is dark. They look like shadows of something on a len...

Resist58

Before you open it up try this, turn it on and keep it on for a half hour or so. Then turn it off and unplug the power cord from the wall outlet. After around another half hour plug it back in and turn it on. For some reason doing this for me has worked when my screen starts scrambling up. You may h...

Resist58

Well I ended up unplugging the TV and turned it back on after about 30 minutes, now the picture is back!

The only issue I am now having is that when the screen goes black there are lighter spots, like small balls showing up on the screen. They are more concentrated in the center of the screen.

Resist58

So after having the TV on for about an hour, I try shutting it off with the remote and the sound mutes, but the TV stays on. I had been able to turn it on and off earlier. I can see the front panel light blink when I use the remote, so I know the TV gets the signal. I even tried using the on/off but...

Resist58

Last week my color wheel shattered. I took it apart removed the broken color wheel and cleaned the internals using a can of compressed air. I ordered just the color wheel itself, reusing the color wheel base. I also ordered a replacement white/blue color wheel wire. The parts arrived today and I put...

Resist58

Interestingly my picture quality has continued to be perfect, without cleaning the inside of my TV. So I am still confused as to why I initially had a scrambled picture after replacing the burned out lamp. Very strange.

Resist58

What is the best way to clean the inside of my TV? A can of compressed air? I certainly don't want to blow dust on the lens or mirror.

Resist58

Thanks for the info, but my picture has been fine for 3 days now. Maybe when the lamp blew it screwed with the electronics and now it has corrected itself. I will try and get inside the TV and clean it out though just as a precaution.

Resist58

Maybe I wasn't clear in post. My TV picture is working fine now. But when it was not working, all inputs were scrambled. Initially I couldn't get to the other inputs because I couldn't see the input to pick it, due to the messed up display. But no screen was coming up right, including the service me...

Resist58

bigbug wrote:After replacing a lamp does one have to reset the lamp hour counter before it will come on?

My understanding is, no. Otherwise if the lamp didn't come on, you would have no way to reset the counter because the TV's screen would be blank.

Resist58

The replacement lamp was the proper one, a Philips. Only this time I just replaced the bulb and not the entire casing, like I did last time. As I said before this is the second lamp I have replaced in this TV over a 7 year period. I already reset the lamp hours, but not sure what that has to do with...

Resist58

Can anyone explain all the functions in the Service Menu under the Options? I know I can reset my lamp hours under Lampclear, but have no idea what the other stuff does. My TV is a HLN617.

Resist58

What is this reflow thing all about?

Resist58

I believe that with a blown lamp the system shuts everything down. So you won't get fan power or even audio on the TV.

Resist58

For whatever reason the picture on this TV is working fine now, so I have no idea what is going on. I hope it lasts.

Resist58

I would think it should spin freely, if it is stiff then the bearings may be bad. But usually you get bearing noise when this happens. From what I have read here, a faulty color wheel can prevent an electrical signal that allows the lamp to light.

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