My Mitsubitshi VS-50501A projection TV has a light sensor on front panel of TV and when the light in the room goes dark the sensor darkens the picture way to much so I have to keep the lights on to see the picture. Is there anyway of by passing the sensor so the picture is always bright? Thanks, Fred
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: screen goes dark
I thught I answered this one but if you disconnet the sensor it should brighten up the picture If it dosent then its part of the brightness curcuit and must be replace. As I remeber thewre are severall models that you could simply disconnect. Or there should be an auto brightness feature in the main menu picture ajustment to simply disable or shut it off. Good luck
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Without going in with troubleshooting equipment it is hard to determine if the problems are related or not but it is unlikely since you seem to have a video problem and a convergence problem , which are two separate circuit(signal processing and deflection).
Hope this help.
Please do not rate this answer(unless it helps)as it is only a suggestion.
Is there a ceiling fan in the same room? Under the right conditions, light reflecting off the whirling blades hits the TVs sensor at just the right frequency, causing mysterious things like this.
Try covering the infrared sensor on the TV (it should be behind a red transparent piece of plastic somewhere in the front. If this keeps it from "going mad", then something in the room is to blame. If it still does it even when the sensor is covered, then it is the TV.
Good luck, and let us know what you find!
take the front bottom black panel off. it pulls off. unscrew the little panel in the middle. reach up and pull the wires down gently. unplug the 2 conectors gonig to the big metal frame holding the screen in. unscrew the 2-4 screws holding the big metal frame. pull up put screen on sheet to protect it. unscrew the screws holding both of the screens in. Pull apart and clean
try adjusting the green screen control. remove the front bottom panel of the tv by removing any screws holding it in place. gently pull of the front panel, there are gromets holding it in place, you will be able to gently remove the front, just make sure you get all those screws. now reove the small wodden or plastioc panel. now you will see the screen/focus assy. check to see of the screen controls are the top 3 or bottom 3. adjusted the center screen it's the green one, the other 2 are the red & blue. it is best to adjust in a dark room where the lines will show up easier. good luck
i've never had to fix this problem before, but give this a try, it might work. remove the front bottom panel of the tv, their should be 2 to 4 screws then the panel should come off. it might need a little prying & sometimes they use velcro to hold it in place along with the screws. now remove the small plastic or wodden panel, another 2 to 4 screws. now in the upper right side you will find the screen/focus block ( 6 controls). i think the top 3 are screen & the bottom 3 are focus. you will need to adjust the screen control., use a flashlight to read it. now the center is the green tube, i do not remember if the red is to the right of left. the screen control is like the master brightness, which sould help with the low sensor output. if you turn up the red too high you will get small red lines on dark picture/or in a dark room. good luck.
turn off the sensor then Its should be a switch or in the main picture menu. These sensors do go bad but its rare . The problem here is usually a misajust of the sensor or a defective sensor But like I said there should be an off for it.