Question about Panasonic PT-AX200U Projector

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Projector picture abnormality, center of picture yellow

It covers more than half the picture in the shape of a rectangle/circle based in the center the whites are faded to yellow/orange like someone has smeared some yellow on the lens, the edges of the abnormality are gradient. The edges of the picture are normal and we still use it fine but it's definitely noticeable.

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  • 3,230 Answers

Hi there,

It seems that you need to replace the LAMP of your Projector.

Good Luck!!
regards
all-guru

Posted on May 29, 2009

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Posted on Jan 02, 2017

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1 Answer

What is the math definition for area?


Area - The size of a surface

Specific

Square
Area = Side x Side

Rectangle
Area = Length x Width

Triangle
Area = Base x Height (cut the answer in half and that is your area)

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If you know about area formulas of class 8 and 9,please solve my question?there is a circle.in the between of the circle,there is a rectangle of dimension 4cm and 3cm.if the rectangle will cut out what...


The diameter of the circle is the diagonal of the rectangle use Pythagoras this rectangle is a made from two 3,4,5 triangles, so the diameter is 5cm, the radius will be 2.5cm don't forget the BODMAS ordering rule (Brackets of Division Multiplication Addition and Subtraction) Also rounding to 2 decimal places. This solution is based on all four corners of the rectangle touching the circumference of the circle.

Area of a circle is P (22/7) i x Radius (squared ^2) ====> 22/7 x 2.5cm ^ 2 ====> 22/7 x 6.25cm

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The remaining portion is the circle area minus the rectangle 19.64-12 = 7.64 cm^2


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I have a panisonic pt-lb50ntu Projector. It will only focus the center of the image. When you adjust the focus to the bottom of the image the top and center are out of fucus. The same goes for focusing on...


Is the picture a perfect rectangle shape on the screen. If not then either adjust the angle of the screen, or use the keystone function on the menu to correct it.
Does it still not focus correctly after doing this

Nov 12, 2010 | Panasonic PT-LB50U Multimedia Projector

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Epson projector has yellow circle in middle of image, as if the lamp has caused something (lens maybe) to become yellow.


Probably had too high wattage bulb and basically, it burned the lens cover. Remove the old lens and "project" to see if the yellow circle is projected. Iif so, purchase a new lens cover.

Sep 02, 2010 | Office Equipment & Supplies

1 Answer

Yellow hue circle in middle of screen. after leaving tv on all night


spherical or oval shaped light starting in the center of your picture is an indication of an led backlit tv.. probably a hitachi. solution, replace light engine..ps no garuntees not with led backlit sets.. was bad idea to begin with. when the leds start going they start at the center and branch out.

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In cpp programming why do we go for abstract base class?


Virtual keyword allows the program to dynamically decide which function to call. That is, when derived class is inherited from a base class the function in derived class can perform a completely different action from the one in Base class. Hence the function call via a pointer or reference maps to different functions based on the type of the object.

Abstract base class is used, so that anyone who is inherting from this class should implement that interface. Because the base class may not have a meaningful implementation for that interface. For example to design a program for computing area of different shapes like rectangle, triangle, hexagon etc. base class can be thought of as Shape. In addition the base class can be made abstract by declaring Area to be a pure virtual function. Then the different shapes like Rectangle, Triangle classes can inherit from Shape and implement Area interface based on their formulae.

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1 Answer

Sanyo plv70 multimedia projector has yellow rectangle in centre


Either its dust on the mirrors, if so u need to clean then, there are 3 mirrors inside. Or one of the mirrors is bad, then u need to buy a new one. I would recomend you to NOT do that yourself, leave it to someone who knows how to to that.

Good luck

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Infocus LP240 Projector


The bulb won't do that. What you're describing sounds like a light tunnel failure.

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If there is a yellow circle in the center of the image, and it is an LCD projector, then it is more than likely that the blue polarizing filter is burnt-out. I don't know where you can get replacements - I would like to get one myself for an aging Sanyo PLC-5605B.

Jan 29, 2008 | Office Equipment & Supplies

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