We'v had our tv for 2 yrs and now having issue with it loosing the picture aftr 40 mins. We still have sound and if we turn it off and back on the picture is back. We just replaced the bulb and that did not fix it but the picture is much brighter again. We sometimes get that black and white pixal image freeze on the screen as well and then we shut it off and bring it back up and it's fine. After the first time it happens, then it seems it happens about every 10 min or less - like something is heating up. Is there something else we could look into before calling a tv repairman?
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
SOURCE: Vivitek 51
Fixed and very QUIET now!
It was the color wheel drive motor. $90 + s&h
Took about 20 min to replace. The top of the color wheel housing comes off with a couple philips head screws.
SOURCE: vivitek 51 DLP HD HDMI
You should have checked the troubleshooting section of your manual!! Okay, enough scolding. You need a new lamp. I do enjoy my Vivitek, but this is a definite downside of a DLP, especially if you watch a lot of TV. I am on my third lamp already, and they are NOT inexpensive. If you have your TV less than a year, your lamp may still be covered under warranty and may be replaced by Vivitek for free. If you have to buy your lamp, it can easily cost you over $200. This is the new lamp in a whole new assembly, which makes installing it EXTREMELY EASY and will just take a few moments. If you are a little more adventurous and want to save some money, you can buy the lamp alone. You then remove the lamp assembly from the television, open it up (there's several screws to remove), disconnect the old lamp, and reverse the process by making the proper connections with the new lamp and putting the new assembly back together and back into the television. It sounds more complicated than it is.. Biggest rule.-- don't touuch the surface of the lamp with your bare hands. You don't want your oils on the lamp. . And once you put everything back together and restart the TV, reset the timer for the lamp (the manual explains how). The lamp timer is very important for warning you of when to replace the lamp under ordinary conditions, when it does make it through its entire expected life. I don't know if it's appropriate to actually recommend specific vendors for the lamp, but I can if that's okay. email me midlomiss at yahoo dot com
SOURCE: vivitek tv
I have a 56" model that I have had a similar problem. My bulb burned out in <90 days. Warranty was 90 days on the bulb itself. When the TV picture goes out, the indicator LEDS blink on and off.
Here is what you have to determine:
1) First cover the left LED with a piece of paper so that you can't see it blinking. I don't know if your layout is the same as my TV. You may have to switch the paper blocking the LED.
2) Pay attention to the other LED and READ its' flashing code. In my case, the code was 2-3. It would flash 2 times, pause briefly, then flash 3 times. This meant code 23. That indicated the bulb was burned out.
3) If you look in the manual, It does have a code list of some sorts to tell you of the codes and their meanings. Hope this helps.
SOURCE: Vivitek 32 L32PL1A no picture, black screen
chek your power module.check your electrolytic capacitors both in the input & output side of the power module.
SOURCE: flat sceen tv
If it's a DLP, I've noticed the air vents for ventilation in the bulb housing were not opened all the way when I replaced my bulb. The vents closed too much will cause the bulb to get hot and shut down the system. Try removing the bulb housing and opening the vents as much as possible to allow appropriate air flow. This solved my problem.
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i turn on my tv the blue comes on and it's good for about 5-10min and then it shuts off the blue light turns yellow, and it just keeps repeating the same pattern what can i do, it's driving me crazy (i've had it for about 2 yrs)
We are having the same problem. Our set is 2 years old. We can not seem to find anyone who can even diagnosis the problem. We were going to try replacing the bulb but that it appears does not woek
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