FixYourDLP.com Forums

ChubbsTech

Hello again Chaiyz. I think you only searched by tv model number, I suggest you look by part number, the part number is printed in one of the cables that are attached to the color wheel, normally they start with a “BP”. Here is a small search if found on D-M: http://www.discount-merchant.com/SearchR...

ChubbsTech

In short, yes. A malfunctioning fan will cause the DMD to not turn the tv on. Because as soon as you press the power button the first to scan the entire tv for any malfunction is the DMD board, if it detects an anomaly the tv wont turn on.
Good luck.

ChubbsTech

Hello again steve. If some of the fans are not working properly then that would be the most probable reason why you tv is not turning on. You see there are sensors all over the tv that send electronic pulses to the DMD board. If one of those is not sending signs of life the DMD will simply prevent t...

ChubbsTech

Hello mightyboy. It very probable that the ballast is the one that malfunctioning, you see when you hear a clicking noise when you try and turn on your tv that means that there is irregular current going trough the ballast causing the circuit to brake, the board gets discharged and then it try’s aga...

ChubbsTech

Hello Joe. There is a very high possibility that all you need is a new lamp (to learn more view this topic http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=1263 ), how ever if you replace it & nothing happens, try resetting the lamp timer. Read this post on how to: http://www.fixyourdlp....

ChubbsTech

Hello adezan. I wouldn’t recommend you do that, in my personal experience I’ve installed a entire light engine from a Samsung 52” to a 61” tv and on the top part of the picture there was a black bar, making me realize that it was too small. If you try to swap just the DMD board and using the same li...

ChubbsTech

Hello sactown. My first question would be, are you just pressing Mute 1 8 2 Power to reset the lamp timer? You see there is more instruction that follow that to actually reset it. Here is the link to the post on how to completely reset it. http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=105...

ChubbsTech

Hello Chaiyz. First of all I would like to congratulate you for creating such a detailed post. After carefully reading both the most probable cause is the color wheel, you see the color wheel is the one in charge of giving color to the white light emitted from the lamp. The color wheel can go bad fo...

ChubbsTech

Hello titog. That click sounded odd, the old lamp that you replaced, was it shattered when you took it out? did it make a popping sound when it expired? If so there is a possibility that the ballast might have been damaged. You see when a lamp runs out of mercury gas, there is a good chance a small ...

ChubbsTech

Hello steve. Let’s see if we can discard the easy fixes first then move on with the more complicated ones. My first question is have you cleaned the inside of your tv free from dust & mold. This is to discard overheating, also while you’re at it, check if all the fans are working. (The must be i...

ChubbsTech

Hello again adezan. I think the DMD board just became our prime suspect. When a picture shows white spots, ovals, lines, or pixilation there is a very high possibility that the DMD is defective, in time the entire picture is going to be covered. The only way to fix the tv is to replace the DMD board...

ChubbsTech

Hello again Desertmariner. The main function of the fans is to keep the components cool at an ideal temperature predetermined by the factory sensors, when that limit is surpassed its sends an irregular electric pulse to the DMD board. The DMD board detects an irregularity and shuts the tv off. In an...

ChubbsTech

Hello adezan. That is correct, your tv dose use a light tunnel, since it uses DLP technology. As for the symptoms you are describing can either be one of two things. The most probable is a collapsed light tunnel. It’s the part of the light engine that is surrounded by mirrors, so its possible on mig...

ChubbsTech

Hello again P00kies. Wow, I think were running out of possibilities. Have you reset the lamp timer? I know it’s kind of out there, and most Mitsubishi reset it automatically, but it won’t hurt to try it. Here is the link to the post with the instructions. http://www.fixyourdlp.com/forum/viewtopic.ph...

ChubbsTech

Hello again Leon. When you replace the lamp, did you reset the lamp timer? You don’t need to have the tv turn on, so here is the link: http://www.fixyourdlp.com/forum/viewtopic.php?f=15&t=871 so you can try it before you buy any new parts. There is a small chance it’s the ballast but since you o...

ChubbsTech

Hello again gutzz80. When you say that the lamp came with a ballast attached, have you actually installed it? Normally when you buy a new lamp the ballast is sold separately. When you ordered it, was it included as a package? When you buy a lamp it is not necessary (but it is recommended when you pl...

ChubbsTech

Hello again titog. You don’t need to have the tv turn on to reset the lamp timer. I know its hard to believe that the timer can be reset with the tv shut off, but it is possible, just follow the instruction on the last like I provided, if you haven’t tried it I suggest you do it, if nothing happens ...

ChubbsTech

Hello montevideano. I just tried that in a Sony tv and discovered that there is a final step missing from your guide. After pressing the 2 button nine times do the following. Press 3 - then mute (it will change to “Write” ) – then enter ( the word “Write” will change from green to red. Wait from 40 ...

ChubbsTech

Hello titog. Let’s see if we can trouble shoot you’re tv and get to the source of the problem. First of all you’ve replaced the lamp but you haven’t mention if you reset your lamp timer. I suggest you try it first: http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=1050&start=0&hilit=L...

ChubbsTech

Hello rockyroad. It sound like the tv is dead. So if you are not getting any signs of life (the minimum are the leds on the front of the tv) that means that you have a power supply board issue. Since those leds require a minimum 5 volts that are send from the power supply board. I suggest you’ll loo...

ChubbsTech

Hello Desertmariner. Have you reset the lamp timer? First discard the easiest solutions to make way for the more complicated ones. If you’re not sure on how to do it here is the link to that post: http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=1050&start=0&hilit=Loading+Factory As ...

ChubbsTech

Ok you definitely need to clean (either do it your self or have someone do it for you) the inside of your tv, there is a strong possibility parts have gone bad because of heating, so if you want to try and fix the problem without having to buy new parts do it. If the tv still is acting the same as b...

ChubbsTech

Hello thisisepic. There is no way around it, your going to have to buy a new lamp, even if the lamp is not the cause of the problem, its not going to last very long, since the UHP lamps last from 4000+ to 6000+ hrs. That’s 2 – 3 years under normal usage. You also might want to clean the inside of yo...

ChubbsTech

Hello Leon. Normally these UHP lamps last between 1 & 3 years under normal usage, but the more accurate life span is from 4000+ lamp hours. Another factor is the brand of the lamp, if you bout a OSRAM they last from 4000+ lamp hours and Philips last 6000+. So you can’t discard the lamp entirely,...

ChubbsTech

Hello justint. The truth be told is that the only way to get your exact part number is to physically look it up printed in the board you have inside your tv. The reason is that two or more TVs with the exact same model number but was assembled on different dates might have different type of parts. T...

ChubbsTech

Hello gutzz80. I can only think of two possible reasons. One is overheating of the parts, solution: clean the inside of the tv with a small vacuum & a can of compressed air. If that dosent fixes your problem, then try resetting your lamp timer. If you don’t know what that is, let me explain. The...

ChubbsTech

Hello again P00kies. If the lamp works in another tv, & you already installed a new ballast, there is a strong possibility that the problem is being caused by the power supply. Try to replace any bund circuits & bad fuses. If all else fails, your going to have to buy a new board. Another par...

ChubbsTech

Hello TheeNatural. It could be a number of things, first of all le me ask some question to narrow down the problem, and have a better diagnosis. Do you hear any strange noises coming from the back of the tv before it shuts off? Have you cleaned the inside of the tv? Do you get any distortion in the ...

ChubbsTech

Hello Tram. I would agree, sounds like the DMD board. Mainly because the red/green patterns on the screen appear on every input & the TV menu. If you are looking for a cheaper alternative to find your DMD board try http://www.discount-merchant.com/ How ever on thing you might want to keep in min...

ChubbsTech

Hello P00kies. My first question is how long ago did you replace your lamp, there is a slight possibility the lamp imploded, look inside of the lamp for any black bubbles on the inside bottom or any black lines. If you’re going to invest some money in the tv for another 4+ years of use I suggest you...

ChubbsTech

Hello again hypocrisyB. It sounds like you either have a problem of cold soldering or a internal connector issue. Let me explain both. A cold soldering problem is when a circuit on a board gets heated up by the high temperature of the internal components inside of the tv (the lamp alone reaches 500 ...

ChubbsTech

If you are looking a place to find a ballast try http://www.discount-merchant.com/ and search buy part number. Replacing the ballast is fairly simple, you just have to disconnect it & dismount it); the real trick is getting to it (opening up the tv). That something you could do on you own. If yo...

ChubbsTech

Hello master2169. There is a big difference between a ballast & a ballast repair kit. The ballast is a small circuit board the size of the palm of your hand. It regulates voltage to the lamp. The kit is composed of a 6 pieces that commonly go bad. How ever in my experience there is a 50 / 50 cha...

ChubbsTech

Hello Tram. I think you are correct, when there is a problem on the tv and it also affects the TV menu that almost a guarantee that something is wrong with your DMD board. The reason is that the tv menu is controlled only by the DMD board, if it was a video problem or an external component issue it ...

ChubbsTech

Hello Deacon. In my very personal opinion, when I am looking for a place to buy a new lamp I recommend you look in a website that not only has a good price, but also that they have pictures of the product they are selling, high quality products (Philips lamps). Before deciding on one e-shop, try giv...

ChubbsTech

Hello again adezan. Woops, sorry about that. Here: http://www.fixyourdlp.com/forum/viewtopic.php?f=21&t=1289 And yes, that is correct; a bottom half black screen would mean a collapsed light engine (the mirrors might have fallen off). That that we have narrowed down the problem lays another dile...

ChubbsTech

Hello adezan. There is a strong possibility there is something wrong with the DMD board, let me explain why. First of all you are getting picture, which means the lamp, ballast & power supply board are working fine. Next is the half perfect picture. That means that the video & analog are tra...

ChubbsTech

Hello mitchaa. Since the tv is not shutting off, and all you get is a temp light in standby mode. There is a strong possibility that you might have moved a temperature sensor, or some thing near the color wheel. Double check inside, make sure that every thing is completely connected, so you can elim...

ChubbsTech

Hello Mountaindont. I think I can shed some light in to the problem. That winding noise you hear is either from a fan or the color wheel, how ever I would put my money on the color wheel. My first suggestion is to open up the back of your tv, clean the inside free of dust & mold. Next inspect th...

ChubbsTech

Hello darkart77. The lamp timer dose not affect the durability of the lamp or tv, however the main problem that you might face is that after a short while the tv will either tell you that you need a new lamp (it will just be annoying) of give symptom that normally indicate that a new lamp is needed ...

ChubbsTech

I agree, see if you can fix it you’re self, since the board is just physical damaged and no internal circuits have been affected yet. Worst case scenario, if you do mess up, you could always buy a new one, the important thing is that you know the source of your problem.

ChubbsTech

Hello Ankit & ajjohnson. Just to point out that you probably got confused with a Samsung DLP Tv, while a LCD tv has a ballast, its more commonly known as a Inverter board, so technically that is correct. How ever when you refer to a lamp that last 2 -3 years is where I am lead to believe that yo...

ChubbsTech

Hello cardsjason. I got a hold of a Samsung HLR5067W TV in my shop early in the week, it’s virtually the same to the one you got (it’s slightly bigger). If you only want to take the enclosure out the I suggest you watch the following video & pic. ASC02167.JPG http://www.youtube.com/watch?v=YVO7x...

ChubbsTech

Hello DFRICK. Let try to first narrow down the problem, and see if it’s a quick fix or something else. First question. How long ago did you buy your tv? Have you ever replaced the lamp? If so, how long ago? Do you hear any strange noises coming from the inside of the tv? Have you cleaned the inside ...

ChubbsTech

Hello again rtg4171. Unfortunaly the only way to be 100% sure is that you have oscilloscope, open up the tv and check all of the boards mention in my previous post. How ever out of those three the most probable is the analog board, since it receives the signal from the tuner, sends it to the digital...

ChubbsTech

Hello rtg4171. It sounds like the lamp is about to expire, normally the UHP lamps (like the one inside your TV) lasts from 6000 hours, under normal usage that’s 2 – 3 years. So you got a pretty good run on it. Despite the fact that that the lamp may need replacing, have you looked inside of the TV a...

ChubbsTech

Another question is did you reset the lamp timer?
If you don’t know how to here is a link:
viewtopic.php?f=10&t=1050&start=0&hilit=Loading+Factory
Good luck.

ChubbsTech

Hello mitchaa. My first recommendation is that you open your TV again and inspect the color wheel physically, there might be something partially blocking the color wheels light path, did you remove any plastic protectors when you took it out of its packaging? Also very carefully, try spinning it man...

ChubbsTech

Next to it is the Video board (that is divided in two, analog & digital), where all the external components are hooked up. ASC02136.JPG As we move along we can see the ballast and the lamp fan, the ballast is the one that provides regulated voltage to the lamp, while the fan keeps the lamp from ...

ChubbsTech

I’m back with another reference guide, this time I got a hold of a Sony TV that came in my shop. In this one I’m going to show the components of a 3LCD projection TV (NOT a DLP). If some of you don’t remember, the main difference between these two is that the DLP has a color wheel and the 3LCD has a...

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