FixYourDLP.com Forums

ChubbsTech

Hello duquej79. First of all, congratulations, you made a wise choice, the board in charge of the component cables (yellow, white & red) is the analog board, the fact that the HDMI and A/V cables works means that the Digital board is working perfectly. So it’s a very high probability that once r...

ChubbsTech

This is a article I’ve come up with for the many users on this forum having some kind of picture problem where the DLP TV does turn on, so we can discard the power supply, the ballast & the lamp. ASC02132.JPG There are some tests you could do to narrow down the problem. First is bringing up the ...

ChubbsTech

Hello again okcbevo. Sorry for the late response, but I completely forgot about this post, so here it goes. First of all, yes, if the ballast is out, then the lamp couldn’t turn on. And since there is a sensor that detects that the lamp is of, then the DMD board would prevent the tv from turning on,...

ChubbsTech

Hello again Sadaco. Ok, the clicking once means that the ballas is still ok, how ever if the lamp is more than a year old it might have met its end (especially if the lamp is not a Philips brand). How ever from the symptoms you describe the DMD board or digital video are my prime suspects. Well have...

ChubbsTech

Hello again blahblah0. You are correct, the glass you see cracked is the UV filter (area A in the picture above). Now that we are all on the same page, the increase of brightness on the screen is a result of installing a new lamp, how ever you might start to see a dim shadow across the screen as a r...

ChubbsTech

Hello JackP. In those 4 years have you ever changed the lamp, remember that the lamps inside of your tv are not eternal. They have a life span of 1 to 3 years (some rear cases up to 5), it all depends on the daily usage, if you haven’t changed it I suggest you contemplate on buying a new one. If you...

ChubbsTech

Hello Sadaco. It sounds like a tricky situation, ok there are a few do it yourself tips that might help to narrow your problem down, so let’s get started. First try cleaning and vacuuming the inside of your tv, also double check all the fans, this is to discard the possibility of a over heating prob...

ChubbsTech

Hello blahblah0. By UV Filter, are you referring to a small colored glass that position in front of the lamp? In some Samsung DLP TVs when you take the lamp out of the TV your going to notice that there is a small hole where you can barely see a colored glass, this is actually the color wheel, its f...

ChubbsTech

Hello every one, I’ve taken the time to create a post about light engines in general, there are many people who are frequently asking question about the components. So here is a small reference guide for all DLP tvs, the light engine showed is from a Samsung TV. The light engine is composed of 3 mai...

ChubbsTech

Hello Jbobc. This sound like a very strange case. First all the components that have to do with a ballast & lamp malfunction have been replaced twice. Second you have already cleaned the inside of your TV, so we can rule out dust overheating. There only a few possible explanations I can come up ...

ChubbsTech

Hello xylke. The lamps inside these TV normally lasts 1 to 3 years depending on daily use and the brand of the lamp. How ever the buzzing noise is not related to the lamp, it’s regularly a defective color wheel, in many occasions the middle bearing gets dislocated, or is out of balance, causing the ...

ChubbsTech

Hello guidoia. Given the fact that it’s a used TV do you know if the lamp has ever been replaced? Normally these lamps last from 1 to 3 years (depending on the brand of the bulb and daily use). If you don’t know and are willing to spend money so it can last you another 3 years, my first recommendati...

ChubbsTech

Hello again spoooolin. To fix the blue dots you can do the easy but expensive (280 to 400 bucks), by simply puling out the light engine and installing a new one. The other is the cheap but hard, not because of the installation, but hard to find the lcd chips sold separately. If you decide to buy a p...

ChubbsTech

Hello again jls2307. Another question, have you cleaned the inside of your TV? Some times the dust tends to over heat the component of the lamps, also it can clog the fans so they can’t ventilate properly the inside. While you’re at it see if you can inspect the color wheel, look for any signs of br...

ChubbsTech

Hello jls2307. First of all have you closed the lamp door before turning the TV on? There is a small switch that sends a signal to the TV (the DMD board to be more precise) when the lamp door is opened and it wont let the tv turn on as a security precaution. Also, do you hear any strange noises comi...

ChubbsTech

Hello again jwkfs. Ok, so I think you can rule out the timer, now that you confirmed that the lamp is trying to turn on and flickers. On very possible cause is that the ballast is sending irregular voltage to the lamp, when a lamp runs out of mercury gas it some time creates a short circuit that als...

ChubbsTech

Hello Butch. You initial problem sounds like the video board (its divided in two, digital & analog), the analog board (it controls the S video, component 1, 2 & 3) was having some issues and you manage to workaround it using the digital board (HDMI, GVA) however it sound that the problem wit...

ChubbsTech

Hello jwkfs. Have you reset the lamp timer? Don’t worry; you’re not the only one with this issue. Let me link you to one of my post and the reason it’s so important to reset the lamp timer after replacing a new lamp. http://www.fixyourdlp.com/forum/viewtopic.php?f=10&t=1301&p=4420#p4420 if y...

ChubbsTech

Hello sammyuk. The reason is that inside your tv is a small program called the lamp timer. It keeps track of the hours that the lamp is turn on. When it reaches a certain limit it will shut the tv for security measures. So the most common problem when you replace your lamp is that nobody knows about...

ChubbsTech

Hello knifesideleft. From the pictures you provided I can say that the problem is NOT related with the lamp, ballast or color wheel. What is in question is the DMD board, digital or analog board. To determine which one you’ll need special equipment, like an oscilloscope to trace a signal output. How...

ChubbsTech

Hello hypocrisyB. Its sound likes a digital video board problem, but before we draw to any conclusion, have you taken a look inside of the TV when it starts to flicker and verified if the lamp is actually flickering? There is a rare case with the digital video board that tends to have a defective ci...

ChubbsTech

Hello SixStringer. Its sounds like there is a problem with your video board, when you hook up an external component like a DVD player, the signal goes directly to the video board that is split in two, digital & analog, the first symptom you describe (green bands) sounds like a digital board issu...

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.

ChubbsTech

Hello donchilton. The ballast is not necessary required, but if you are willing to spend, and keep the tv for another 4 years or more, I would recommend it. I explained a little more detail on a previous post about the components of these DLP TVs http://www.fixyourdlp.com/forum/viewtopic.php?f=10&am...

ChubbsTech

DSC02093.jpg Also there is a screw located in the top that holds a securing lid for the light engine lens. DSC02096.jpg DSC02098.jpg If by now you are still uncertain if you can do this, I suggest you don’t, get a professional technician instead. How ever if you have the time, patients, space, and ...

ChubbsTech

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The trickiest cable to unplug was the one that goes from the light fan to the power supply. (above & below)

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ChubbsTech

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ChubbsTech

Hello rajantonyv. First let’s get one thing clear, this is not a guide, this is a reference of one of my old Toshiba TV that I happened to take out the light engine, so you can get an idea of what to expect. The real trick is to keep two thing in mind, 1.- remember what, where and when you disconnec...

ChubbsTech

Hello again daver10000. Is looks like you’re having issues with the video board, to try to determine if it’s the analog or digital you might want to do the following test: First try the analog by hooking a external component with the red, white and yellow cables, see if there are any changes in the ...

ChubbsTech

Hello again cstock. The HDMI goes trough the Digital part of the video board & since the DNIE chip is ok we can discard the Digital board, so the analog board seams to be the prime suspect. If you plan on replacing it and you about to buy it search by part number, and make sure to compare it phy...

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 predetermine...

ChubbsTech

Hello spoooolin. First of all just to clear things up, Hitachi Ultravisions are not DLP technologies, they are 3 LCD projections instead. What is the main difference? DLP has a color wheel, while 3LCD projection uses 3 separate LCD chips (blue, green & red) and a prism in the middle. EDSC020410....

ChubbsTech

Hello cstock. From what I understand only the cable channels are affected by this green squares, have you tried to hook up a dvd, blue ray or gaming consol and see if the picture is also distorted. If not it’s very probable that there is a problem with your cable providers signal or equipment. How a...

ChubbsTech

Hello robmorgan1. It sounds like you have abused your TV pretty good there. In order to narrow down you problem let me know when did you buy you TV? Have you ever changed the lamp? Have you cleaned the inside of your TV in the last year or so? Do you hear any strange sounds that are coming from the ...

ChubbsTech

Hello daver10000. My first question for you is, did you buy a light engine with a dmd board included or just the bear light engine? Did you buy the exact same part number as your old light engine. Or did you look for it by model number? Next I would recommend you try to hook up an external device su...

ChubbsTech

Hello synack. There is a very big possibility that you might need a new lamp, especially if you haven’t replace it since 2005, but before you get in to buying anything, do you get any other symptoms, like bad picture befor the lamp shut off, strange notices coming from the back?. If none of these ar...

ChubbsTech

Hello luis. First of all let’s try to narrow down the problem, my first recommendation is to test with an external sound source, for example a DVD, play station, pc or something similar that hooks up to your tv in the back. If the problem is not there after connecting the external device, then a pro...

ChubbsTech

Hello moshernick. Let me explain a little bit in detail how you tv works and the most probable reason you have those white lines. First of all when you turn on your tv, the current goes trough the power supply, then to the rest of the components, the picture is created when the lamp is turned on by ...

ChubbsTech

Hello again wayfast. I hate to be the deliverer of bade news, but it’s very probable that you bought a non compatible light engine. You se many tv models may look the same, and have the same model number, but uses different type of parts depending on the year that they where manufactured. In this ca...

ChubbsTech

Hello ckama48. Ok, first of all let me say that the Mitsubishi TVs are very solid tvs (un like the Samsungs), the have very good sound and grate picture quality, this is from one Mitsu DLP owner to another. I read your post and from what I understand your tv is not able to turn on, first of all, hav...

ChubbsTech

Hello drlparker. I think I can help you out but before I can suggest any kind of diagnostics I’m going to need a little more info. First of all, when did you purchase your TV? What’s the model number? Have you ever cleaned the inside of your TV in the last 6 moths? What happens when you try to turn ...

ChubbsTech

Hello gchesnut. I think I can help. Let me know if I got it right. You heard a loud pop, you lost all color but otherwise your tv is fine (turns on ok, tv menu is ok, etc.) If that is the case then I suggest you inspect your color wheel physically, some times a piece of the wheel come off, if that’s...

ChubbsTech

Hello, Kentb53. You are right, some times when the lamp goes out (especially when it implodes) it also takes the ballast with it. Let me explain in more detail. First of all current is measured in amperes I. Current (I) is a result of the amount of potential difference (volts) divided by the resista...

ChubbsTech

Hello kornfed. Let me fill you in on how the DLP lamps like the one in your Samsung TV work. First of all there are UHP ( ultra high performance lamps) that produce a light brighter than the sun. These lamps do not have a metal filament in the middle; they have a thin glass probe that contains mercu...

ChubbsTech

Hello wayfast. The symptoms that you have just described might be from a malfunctioning integrated controller imbedded in the DMD board that regulates the voltage to the color wheel. If you try to inset your new color wheel it will not work since the DMD is probably fried (or at least from the Color...

ChubbsTech

Hello volvotech. Don’t worry; that also perfectly normal let me explain a little more in detail of what I think is going on with your TV (I could be wrong, so don take it as a fact). The TV try’s to turn on. (Power supply – ok), the ballast turns on the lamp after buy passing the DMD board (lamp &am...

ChubbsTech

Hello ZundapMan. The DLP tv has seven main components, here is a quick round run down. 1.- Lamp. 2.- Ballast. 3.- Color wheel. 4.- Light engine. 5.- DMD board. 6.- Video board (digital & analog). 7.- Power Supply board. Also here is one of my early links so you can find out more on how some of t...

ChubbsTech

Hello ZundapMan. You are right indeed about the corporate bureaucracy, but let me shed some light in this grim case. I assume that you have been looking for your part by your model number, that’s not entirely right; you should be searching it by part number instead. There are many model numbers that...

ChubbsTech

Hello WillGolfForFood Let see if I can help you out. First try and hook up a DVD player or another external component (computer, playstatio, vcr, blue ray, etc.) and see if you can get a picture going. The reason is that these components especially the computer, by pass the dmd board in some ways, i...

ChubbsTech

Good morning lionking. Let me explain a little bit of how the color wheel works, and its components. The color wheel is sold as two main parts, the bare color wheel and with the housing. DSC01963.JPG The bare color wheel consists of the colored plates disc and its current cable that feeds 3.3v to 5v...

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