Some how I got black squares along the bottom of my screen. One of them says "mat" they go all the way across the screen. I read in the hand book and it tells which each one is for but not how to get rid of them and get back to the regular algebra screen. Help!!

What make and model calculator?

Posted on Apr 28, 2013

Testimonial: *"I said it was a Casio fx-9750G2"*

Hi,

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Posted on Jan 02, 2017

If you have tried using different input devices, looked for loose contacts

in power outlet, RC Jack, cable and connectors, the TV might need service.

in power outlet, RC Jack, cable and connectors, the TV might need service.

Aug 26, 2012 | Hitachi 55HDS69 55 in. Plasma Television

When you have a remote control that is not working properly---works but some buttons either do or do not work correctly the most common cause for this is something got spilled on the front of the remote--it does not have to be a large amount to cause problems.

The way all infrared remotes work is there is a circuit board inside with black carbon lines etched on it---this includes lines for each function the remote has.

The buttons on the outside of the remote are actually one large rubber like mat and on the bottom side are coated black buttons---when you press a button on the keyboard the button part on the bottom of the mat touches lines on the circuit board and directs the remote to send a infrared signal to the unit it controls.

In this situation you have two choices:

1.) Most remotes can be taken apart and cleaned for this problem--I have done hundreds of them.

a) Once you get the remote apart (the hard part) the rubber mat should lift freely off of the circuit board---if you have to peel it off and feel resistance you will see whatever residue of what was spilled and got under it; it gets between the mat and the circuit board.

b) The surface of the board where the lines are can be cleaned with denatured alcohol.

c) To clean the mat: remove it completely and with a small toothbrush and dish soap gently wash it in the sink with warm water. Then dry it with compressed air or a hairdryer set to air only. When it is COMPLETELY dry put it back into the face of the remote.

d) If there was a spill into the remote it is also a good idea to clean the face of the remote where the buttons protrude and dry it completely before you put the mat back.

e) Put the remote back together and see if it now works.

Your second option is to borrow another remote for the same kind of unit and see it works normally--if it does and cleaning does not fix the original remote--YOU WILL NEED to buy a new original remote for the unit.

I stay away from "Universal" remotes as many either will not work or be missing several features the original one had.

If a KNOWN good remote does not work it is possible but very unlikely that the problem is in the unit the remote conrols.

See attached photo of a typical remote taken apart--note the lines on the board and the bottom of the buttons on the keypad.

Neverclean the bottom of the buttons with anything except soap and water asany chemicals can damage the black conductive coating on the bottom ofeach button--it will not hurt the lines on the circuit board!

SD TECH

The way all infrared remotes work is there is a circuit board inside with black carbon lines etched on it---this includes lines for each function the remote has.

The buttons on the outside of the remote are actually one large rubber like mat and on the bottom side are coated black buttons---when you press a button on the keyboard the button part on the bottom of the mat touches lines on the circuit board and directs the remote to send a infrared signal to the unit it controls.

In this situation you have two choices:

1.) Most remotes can be taken apart and cleaned for this problem--I have done hundreds of them.

a) Once you get the remote apart (the hard part) the rubber mat should lift freely off of the circuit board---if you have to peel it off and feel resistance you will see whatever residue of what was spilled and got under it; it gets between the mat and the circuit board.

b) The surface of the board where the lines are can be cleaned with denatured alcohol.

c) To clean the mat: remove it completely and with a small toothbrush and dish soap gently wash it in the sink with warm water. Then dry it with compressed air or a hairdryer set to air only. When it is COMPLETELY dry put it back into the face of the remote.

d) If there was a spill into the remote it is also a good idea to clean the face of the remote where the buttons protrude and dry it completely before you put the mat back.

e) Put the remote back together and see if it now works.

Your second option is to borrow another remote for the same kind of unit and see it works normally--if it does and cleaning does not fix the original remote--YOU WILL NEED to buy a new original remote for the unit.

I stay away from "Universal" remotes as many either will not work or be missing several features the original one had.

If a KNOWN good remote does not work it is possible but very unlikely that the problem is in the unit the remote conrols.

See attached photo of a typical remote taken apart--note the lines on the board and the bottom of the buttons on the keypad.

Neverclean the bottom of the buttons with anything except soap and water asany chemicals can damage the black conductive coating on the bottom ofeach button--it will not hurt the lines on the circuit board!

SD TECH

on Feb 02, 2010 | Televison & Video

You can jump to the end of the post for you answer**. **

A. Define the matrix (Create it)

Turn calculator ON.

Press Menu,select the MAT icon and press [EXE]

You see a list of possible matrix labels (A, B, C,D,E,F)

All that have not been created have a "none" to their right

Highlight a matrix name and press the right arrow. Where there was "none" , you have a template 0x0.

That is where you specify the dimensions (mxn). exemple. 2x2

Enter the first dimension and press [EXE]

Enter the 2nd dimension and press [EXE]

A matrix template opens where you enter the coefficients left to right and up down.

After each coefficient press [EXE]. Cursor moves to the next coefficient, etc.

At the bottom of the screen you have 3 menus for Row and column manipulations. But those will have to wait for now.

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

**B. Operations on matrices**

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

These operations are accessed as follows.

Quit the matrix editor by pressing [Menu] and selecting the [Run] application.

Press [OPTN][F2:MAT]

You have the menus Mat,M(atrix)->L(ist), Det(erminant), Trn (transpose), Aug(ment) ->, Iden(tity),Dim(ension) Fill

Exemple : calculate the determinant of a matrix A (already defined).

You press the [OPTN][F2:MAT] key sequence (just above)

Press [F3:Det]; the command det is displayed on screen.

Press [F1:Mat] the identifier Mat is displayed.

Press [ALPHA] A; screen display det Mat A.

Press [EXE] to get the value of the determinant.

**C. Square of Matrix A**

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

**D. Product of two compatible matrices MatAXMatB**

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

**E. Calculate the inverse of a square matrix** (Mat A)

Use commands like the ones above to display the command**Mat A**, the press the [x^-1] key. You will get the inverse if matrix can be inverted.

A. Define the matrix (Create it)

Turn calculator ON.

Press Menu,select the MAT icon and press [EXE]

You see a list of possible matrix labels (A, B, C,D,E,F)

All that have not been created have a "none" to their right

Highlight a matrix name and press the right arrow. Where there was "none" , you have a template 0x0.

That is where you specify the dimensions (mxn). exemple. 2x2

Enter the first dimension and press [EXE]

Enter the 2nd dimension and press [EXE]

A matrix template opens where you enter the coefficients left to right and up down.

After each coefficient press [EXE]. Cursor moves to the next coefficient, etc.

At the bottom of the screen you have 3 menus for Row and column manipulations. But those will have to wait for now.

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

These operations are accessed as follows.

Quit the matrix editor by pressing [Menu] and selecting the [Run] application.

Press [OPTN][F2:MAT]

You have the menus Mat,M(atrix)->L(ist), Det(erminant), Trn (transpose), Aug(ment) ->, Iden(tity),Dim(ension) Fill

Exemple : calculate the determinant of a matrix A (already defined).

You press the [OPTN][F2:MAT] key sequence (just above)

Press [F3:Det]; the command det is displayed on screen.

Press [F1:Mat] the identifier Mat is displayed.

Press [ALPHA] A; screen display det Mat A.

Press [EXE] to get the value of the determinant.

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Use commands like the ones above to display the command

Apr 27, 2012 | Casio FX-9860G Graphic Calculator

Almost all remote controls are assembled in two ways= a few have screws on back and in battery compartment(very few) but most are snapped together.

along the seam on the side (and bottom) are hidden snaps----You use either a small screwdriver to get in and from the bottom on each side work your way up the side to release the snaps(some minor damage may occur to the case while doing this.

With the side and bottom loose carefully pry as you go (make sure no screw under the batteries) until both sides are mostly free and the bottom is also.

From there you should be able to snap it all the way free.

remove the batteries

Once apart you will find a circuit board with parts on one side and a rubber mat on the other that has all the actual rubber buttons.

At this point look at the little clear LED at the top (faces set) of the board(some sets have of them---inspect where soldered to make sure not broken loose (2 connections each) connections there--if none proceed.

The mat when pulled away should not be sticky but come cleanly away--if sticky or you see residue of a spill (soda, coffee etc) on the side of the board where the bottom of the rubber mat goes are black lines and patterns each with a black dot---that is the actual switch for each function.

The bottom of the rubber mat will have small round black coated circles that are what touches the etched black on the board.

At this point it is straightforward: if residue on etched board clean it with alcohol and nothing else.

The rubber mat's bottom that connected to or contacts the board must not be cleaned with any chemical or alcohol..

I usually take it to the kitchen sink and with a old toothbrush clean it both sides with dish soap and rinse it with warm water---get both sides as even the top will have some debris or residue on it---it just pulls out of the plastic case half.

Dry the mat completely with a paper towel and then a hair dryer not set to HOT---just regular air---I usually use a small air compressor but a hairdryer will work.

It is important the bottom of the rubber mat with its little circles that make contact when buttons are pressed is really clean but only clean as I have indicated---any chemical cleaner can ruin the mat.

Put the mat back into the case and line up to all the openings, then lay the board back with the contacts aligned to the bottom of the mat, snap it back together (usually best to start at the top).

put the batteries back

Try it out---if you had to push ******* buttons to get them to work before and it was a cleaning issue now it will work like it once did.

sounds complicated but really very easy.

along the seam on the side (and bottom) are hidden snaps----You use either a small screwdriver to get in and from the bottom on each side work your way up the side to release the snaps(some minor damage may occur to the case while doing this.

With the side and bottom loose carefully pry as you go (make sure no screw under the batteries) until both sides are mostly free and the bottom is also.

From there you should be able to snap it all the way free.

remove the batteries

Once apart you will find a circuit board with parts on one side and a rubber mat on the other that has all the actual rubber buttons.

At this point look at the little clear LED at the top (faces set) of the board(some sets have of them---inspect where soldered to make sure not broken loose (2 connections each) connections there--if none proceed.

The mat when pulled away should not be sticky but come cleanly away--if sticky or you see residue of a spill (soda, coffee etc) on the side of the board where the bottom of the rubber mat goes are black lines and patterns each with a black dot---that is the actual switch for each function.

The bottom of the rubber mat will have small round black coated circles that are what touches the etched black on the board.

At this point it is straightforward: if residue on etched board clean it with alcohol and nothing else.

The rubber mat's bottom that connected to or contacts the board must not be cleaned with any chemical or alcohol..

I usually take it to the kitchen sink and with a old toothbrush clean it both sides with dish soap and rinse it with warm water---get both sides as even the top will have some debris or residue on it---it just pulls out of the plastic case half.

Dry the mat completely with a paper towel and then a hair dryer not set to HOT---just regular air---I usually use a small air compressor but a hairdryer will work.

It is important the bottom of the rubber mat with its little circles that make contact when buttons are pressed is really clean but only clean as I have indicated---any chemical cleaner can ruin the mat.

Put the mat back into the case and line up to all the openings, then lay the board back with the contacts aligned to the bottom of the mat, snap it back together (usually best to start at the top).

put the batteries back

Try it out---if you had to push ******* buttons to get them to work before and it was a cleaning issue now it will work like it once did.

sounds complicated but really very easy.

Mar 22, 2012 | Televison & Video

Here is enough to get you started and a little more.

Read the post ant consult your calculator manual. The screen captures below may not look exactly as your calculator but the steps are identical.

**A. Define a matrix (Create it)**

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

**B Operations on matrices**

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

D. Product of two compatible matrices MatAXMatB

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Part E Invert a (square, non singular) matrix that was already defined.

Press [OPTN] [F2:Mat] to open a screen similar to the one in capture above

Press [F1:Mat] to have identifier Mat displayed.

Enter the name of the matrix by pressing [ALPHA] A, for example.

Press [SHIFT] [ ) ] activate the (x^-1) key.

This is what you might see (with parentheses and without).

Press [EXE] button to calculate the inverse.

Read the post ant consult your calculator manual. The screen captures below may not look exactly as your calculator but the steps are identical.

- Turn calculator ON.
- Press Menu,select the MAT icon and press [EXE]
- You see a list of possible matrix labels (A, B, C,D,E,F)
- All that have not been created have a "none" to their right
- Highlight a matrix name and press the right arrow. Where there was "none" , you have a template 0x0.
- That is where you specify the dimensions (mxn). example. 2x2
- Enter the first dimension and press [EXE]
- Enter the 2nd dimension and press [EXE]
- A matrix template opens where you enter the coefficients left to right and up down.
- After each coefficient press [EXE]. Cursor moves to the next coefficient, etc.

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

- These operations are accessed as follows.
- Quit the matrix editor by pressing [Menu] and selecting the [Run] application.
- Press [OPTN][F2:MAT]
- You have the menus Mat,M(atrix)->L(ist), Det(erminant), Trn (transpose), Aug(ment) ->, Iden(tity),Dim(ension) Fill

- You press the [OPTN][F2:MAT] key sequence (just above)
- Press [F3:Det]; the command
**det**is displayed on screen. - Press [F1:Mat] the identifier
**Mat**is displayed. - Press [ALPHA] A; screen display
**det Mat A**. - Press [EXE] to get the value of the determinant.

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

D. Product of two compatible matrices MatAXMatB

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Part E Invert a (square, non singular) matrix that was already defined.

Press [OPTN] [F2:Mat] to open a screen similar to the one in capture above

Press [F1:Mat] to have identifier Mat displayed.

Enter the name of the matrix by pressing [ALPHA] A, for example.

Press [SHIFT] [ ) ] activate the (x^-1) key.

This is what you might see (with parentheses and without).

Press [EXE] button to calculate the inverse.

Mar 09, 2011 | Casio FX-9860G Graphic Calculator

Sorry if post is too long. Skim through it to find the inverse of a matrix in part at the end:Part E

Note: Matrix must be square (nXn) and non singular (its determinant not equal to zero)

A. Define a matrix (Create it)

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

**B Operations on matrices**

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

D. Product of two compatible matrices MatAXMatB

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Part E Invert a (square, non singular) matrix that was already defined.

Press [OPTN] [F2:Mat] to open a screen similar to the one in capture above

Press [F1:Mat] to have identifier Mat displayed.

Enter the name of the matrix by pressing [ALPHA] A, for example.

Press [SHIFT] [ ) ] activate the (x^-1) key.

This is what you might see (with parentheses and without).

Press [EXE] button to calculate the inverse.

Note: Matrix must be square (nXn) and non singular (its determinant not equal to zero)

A. Define a matrix (Create it)

- Turn calculator ON.
- Press Menu,select the MAT icon and press [EXE]
- You see a list of possible matrix labels (A, B, C,D,E,F)
- All that have not been created have a "none" to their right
- Highlight a matrix name and press the right arrow. Where there was "none" , you have a template 0x0.
- That is where you specify the dimensions (mxn). example. 2x2
- Enter the first dimension and press [EXE]
- Enter the 2nd dimension and press [EXE]
- A matrix template opens where you enter the coefficients left to right and up down.
- After each coefficient press [EXE]. Cursor moves to the next coefficient, etc.

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

- These operations are accessed as follows.
- Quit the matrix editor by pressing [Menu] and selecting the [Run] application.
- Press [OPTN][F2:MAT]
- You have the menus Mat,M(atrix)->L(ist), Det(erminant), Trn (transpose), Aug(ment) ->, Iden(tity),Dim(ension) Fill

- You press the [OPTN][F2:MAT] key sequence (just above)
- Press [F3:Det]; the command
**det**is displayed on screen. - Press [F1:Mat] the identifier
**Mat**is displayed. - Press [ALPHA] A; screen display
**det Mat A**. - Press [EXE] to get the value of the determinant.

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

D. Product of two compatible matrices MatAXMatB

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Part E Invert a (square, non singular) matrix that was already defined.

Press [OPTN] [F2:Mat] to open a screen similar to the one in capture above

Press [F1:Mat] to have identifier Mat displayed.

Enter the name of the matrix by pressing [ALPHA] A, for example.

Press [SHIFT] [ ) ] activate the (x^-1) key.

This is what you might see (with parentheses and without).

Press [EXE] button to calculate the inverse.

Feb 25, 2011 | Casio FX9750GII Graphic Calculator

A. Define a matrix (Create it)

- Turn calculator ON.
- Press Menu,select the MAT icon and press [EXE]
- You see a list of possible matrix labels (A, B, C,D,E,F)
- All that have not been created have a "none" to their right
- Highlight a matrix name and press the right arrow. Where there was "none" , you have a template 0x0.
- That is where you specify the dimensions (mxn). example. 2x2
- Enter the first dimension and press [EXE]
- Enter the 2nd dimension and press [EXE]
- A matrix template opens where you enter the coefficients left to right and up down.
- After each coefficient press [EXE]. Cursor moves to the next coefficient, etc.

Press [SHIFT][QUIT] to return to the list of matrices to create new ones

Once you have one matrix, you can do operations on it: Calculate the determinant (if matrix is square), calculate its inverse, transpose, augment it, fill it, etc..

- These operations are accessed as follows.
- Quit the matrix editor by pressing [Menu] and selecting the [Run] application.
- Press [OPTN][F2:MAT]
- You have the menus Mat,M(atrix)->L(ist), Det(erminant), Trn (transpose), Aug(ment) ->, Iden(tity),Dim(ension) Fill

- You press the [OPTN][F2:MAT] key sequence (just above)
- Press [F3:Det]; the command
**det**is displayed on screen. - Press [F1:Mat] the identifier
**Mat**is displayed. - Press [ALPHA] A; screen display
**det Mat A**. - Press [EXE] to get the value of the determinant.

[OPTN][F2:MAT] (MAT) [Alpha] A ^2 [EXE]

D. Product of two compatible matrices MatAXMatB

[OPTN][F2:MAT] (MAT) [Alpha] A [*] (MAT) [ALPHA] B [EXE]

Press the F6 key to access other functions.

Jan 23, 2011 | Casio FX9750GII Graphic Calculator

When you press the OPTN key you see Tabs at the bottom of the screen. The second one from the left should be the submenu for matrix operations.. When you press F2:MAT, the new tabs are Mat, M>L (Matrix to List), Det (command to calculate the determinant etc.

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to**Calculation**

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

**Calculation**

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as**det**

Press [F1:Mat] echoes on screen as Mat; screen shows**det Mat**

Press [ALPHA] A The screen displays**det Mat A**

Press [ENTER] to calculate the determinant.

**If the matrix is not square, you cannot calculate its determinant.**

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as

Press [F1:Mat] echoes on screen as Mat; screen shows

Press [ALPHA] A The screen displays

Press [ENTER] to calculate the determinant.

Dec 13, 2010 | Casio FX-9750GPlus Calculator

When
you press the OPTN key you see Tabs at the bottom of the screen. The
second one from the left should be the submenu for matrix operations..
When you press F2:MAT, the new tabs are Mat, M>L (Matrix to List),
det (command to calculate the determinant etc.

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to**Calculation**

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

**Calculation**

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as**det**

Press [F1:Mat] echoes on screen as Mat; screen shows**det Mat**

Press [ALPHA] A The screen displays**det Mat A**

Press [ENTER] to calculate the determinant.

**If the matrix is not square, you cannot calculate its determinant.**

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as

Press [F1:Mat] echoes on screen as Mat; screen shows

Press [ALPHA] A The screen displays

Press [ENTER] to calculate the determinant.

Dec 13, 2010 | Casio FX-9750GPlus Calculator

According to Sharp it is a software problem. Engineer came, installed software update ,10 minute job.....TV worked fine for 1/2 day unfortunately: Then images turned black and white in all channels TV turned itself off, and stanby and OPC buttons started flashing. When TV came back on its own 10 mins later , screen had 2 large square staines superimposed in image (as if it was a burnt screen)...Engineer will be back next week...all quite sad really for a new TV.....will keep u posted

Jul 03, 2008 | Sharp Televison & Video

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61 people viewed this question

Usually answered in minutes!

Now it tells me 12 people have seen my problem and 2 have answered it. Now how do I get your answers????

The same place you posted your question and your comment:http://www.fixya.com/support/t17915784-g... . It's not so much an answer as a question asking you for the make and model of your calculator.

Casio fx-9750GII

I don't know what I am doing wrong. I still don't have an answer to my problem.

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