Question about Toshiba 72HM195 72" HDTV

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Lamp burnout? ok well i have had the tv for almost an entire year now. The other day i switched my lamp setting from low power to high bright. the very next time i tried to turn on the tv all i can get is sound from each channel and the flashing yellow light in the center. there isnt a picture at all. the tv will continue to have the yellow light flashing until the tv turns off and resets with out me touching any thing and it will continue to reset (basically turn on and off) until i turn it off with either the remote or on the tv. Basically, i turn the tv on and i get sound without a single bit of picture and then it will turn off and then back on until i turn it off myself. whats the deal? do i have a burnt out lamp bulb?

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Re: lamp burnout?

Most probably you have a bad bulb. in most cases you can take the bulb out and you will see it cracked inside the glass mirror.anyway the first approach is to replace the bulb.the part number should be on a label on the bulb.if you can not find it leave a message and i will find it for you.

Posted on Jul 25, 2007

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I have an LG 65 inch TV. Owned it about a year and a half. While watching it the picture will go off for a second or two. It happens every few minutes. What is the problem?. The sound stays on.

make this test and fix it. God bless you

The Basics

Before we explore more complex tv troubleshooting techniques, we need to examine the basics. First, we need to verify the TV is securely plugged into a power outlet. Don't laugh, but failure to plug-in the TV is the number one reason reported why electronics do not work. Second, you need to verify the remote has fresh batteries. This can easily be overlooked. The remote can be working one minute and not working the next, so replace the batteries Finally, verify that all cables and connections are correctly and securely attached.

Lamp Problems

Rear-Projection TVs have a lamp, which picks up the picture and projects it on the TV screen. A burned-out or connected lamps are two of the most common problems for Rear-Projection TVs. First, you will want to confirm the bulb is still good. If the bulb is bad then then replace it immediately. Second consult your user manual and verify the lamp and lamp cover are installed properly. Most Rear-Projection TVs have warning light which notify you when there are lamp problems. Again consult the user's manual to see what each light means.


Temperature is a common reason why many Rear-projection TVs do not perform well when they get to hot. You may start to see your TV shutting down automatically when it overheats. Here are a couple of things you can do to prevent overheating. First make certain any TV ventilation ports are free and clear of debris and dust. Second make sure the TV has enough room for airflow. Third, the temperature in the room should be around 72 degrees. Due to the high degree of heat generated by a rear-projection TVs, it is not advisable to watch TV on a hot days when you don't run the air condition. This could cause damage to your TV.

Configuration Problems

Improperly configuring TV setting can cause problems. Verify the TV settings are set correctly. First, brightness and contrast should not be set to high or to low because this can cause poor picture images. Second, adjust the color on the TV when the picture displays colors poorly. Third, if you are having sound issues then check to make sure the volume is not muted or turn down all the way.

Nov 04, 2013 | Projection Televisions

2 Answers

I have a DLP Panasonic tv. The lamp indicator is red.Does this mean the lamp will burn out soon. If so where can I BUT A NEW LAMP.

there could be a possible problem on the convergence module, this is very common problem on the projection tv, kindly check the resistor & capacitor on that area.

let me know,


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When was the lamp this model uses for brightness last replaced? These as a rule have a 2,000 hour or 2 year average lifespan and many just before they fail will go darker, picture will come up slower and be a bit dim.

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My tv's screem is little dark

If you set the lamp mode to LOW POWER, each time you turn ON the TV the lamp will start out at HIGH BRIGHT mode, but will switch to Low Power mode after a short period of time. You may notice a change in screen brightness when this happens. This is not a malfunction.
Just check whether you have selected this mode. Go to its user manual [P57]. All details are there about the lamp brightness settings. If it is not set to Low Power and still you get a dim picture, the lamp may be weak and has to be repaced. OK.

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Zenith E44W46LCD TV power/operation indicator lamp blinks green then goes red when power switch pressed. I can hear the fan motor but no picture. No history of lamp indicator warning.

If the tv projection lamp already been inside the tv now like a 1 1/2 or 2 years?Tv used it every day like 4 or 5 hrs every days?Yes?Than it is the tv projection lamp have to be replace,because the tv projection lamp life span have ended.

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It is most likely your lamp. The lamps have around a 3-5 year lifespan depending on how often you watch the TV. You can check for this yourself by opening the lamp door and removing the lamp to check for a cloud around the bulb or stem of the lamp. There are step by step directions for lamp replacement in your user's manual. They made it so it is consumer accessible and should not take more than 15 minutes to replace.

If you see any imperfections on the lamp then the lamp should be replaced to get a picture as bright as the day you bought it.

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It could be your Light Engine. However, I would first check a few things:

1. Make sure your Low Power/Lamp settings are adjusted so that they meet your brightness needs.

2. Make sure you used a Mitsubishi original lamp, as generics get chewed through fast and hard.

3. Try another lamp; sometimes you can get a bad one in the bunch.

All those things don't work, consider a Light Engine ($400 + for parts; $300+ for labor)

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My set switches from low lamp to bright lamp on its own constantly

I just got mine back from the shop withe a similar issue. The picture would dim especially with dark scenes and you could actually hear the lamp popping and clicking. It was not consistent enough that I had to video tape the issue for the technicians. In short, they decided that the ballast was faulty, unfortunately, the only way to replace the ballast is to replace the entire light engine. The part is about $320 and they also replaced the lamp for $150. The extended warranty would have only covered parts I believe so you may have ended up OK.

Jul 12, 2007 | Toshiba 72HM195 72" HDTV

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