When I start my computer the display screen is red, but if I press down on the top of the display screen. It goes back to the blue start up color. What would the problem be and cost to correct?

I hope you know how to enter and navigate through the OSD (On-Screen Display) menu of your monitor.
Enter the menu and navigate to 'Color' menu.
Under that select 'User'.
Now you can select either Red, Green or Blue.
After selecting a color it can be increased or decreased.
Press Exit button to go back, select the next color and set it to your liking.

After turning on the projector, press "+" and "-" buttons on the control panel

simultaneously for 3 seconds and release the buttons when screen goes blank.

2 Press "+" and "-" buttons again to exit the diagnostic mode.

3While in Self-diagnostic mode, the screen will run a seven-color-cycle test as

following:

Red--> Green--> Blue--> White--> Watchet Blue--> Dark Green--> Yellow.

Ensure that the colors of the test pattern are correct. Contact Dell if the colors are
not displayed correctly.

1.After turning on the projector, press "+" and "-" buttons on the control panel
simultaneously for 3 seconds and release the buttons when screen goes blank.

2 Press "+" and "-" buttons again to exit the diagnostic mode.

3 While in Self-diagnostic mode, the screen will run a seven-color-cycle test as
following:
Red--> Green--> Blue--> White--> Watchet Blue--> Dark Green--> Yellow.

Ensure that the colors of the test pattern are correct.

Contact Dell if the colors are not displayed correctly.

You can try the monitor on another computer to verify it is the monitor and not the display card at fault.

I'm assuming this is an LCD monitor. If you are sure the monitor is the problem, then your monitor's display driver circuit is probably getting close to failing. When one of the three colors (red, green, blue) becomes intermittent, the screen takes on the hue of the working colors. In your case it sounds like the blue is starting to fail.

A repair technician may be able to replace the circuit.

I found the solution on mine. To restate, I just saw a thin white border around a black screen. Pressing the channel up or down buttons changed the screen, in some kind of test mode to shades of gray, and red, green, and blue. I started finding a solution when I noticed when on one of the color screens, that the volume up or down buttons brought up a new menu for color intensity. Finally, I got back to the thin white border screen and pressed the arrow keys in the top half of the remote. Finally a TV screen and I pressed the enter key! Voila!

Adjust the convergence or reset it to factory default. Use only the remote when adjusting convergence. The front controls have no effect.

1. Press action button to enter MENU.
2. Navigate to SETUP.
3. Scroll down to CONVERGE.
4. Press VOL > to select.
5. Press CH buttons to navigate up or down.
6. Choose CONVERGENCE ADJ or RESET TO DEFAULT.
7. Press VOL > to select.
8. If CONVERGENCE ADJ is selected the align Green to Center screen will be displayed.
9. Use the navigation buttons on the remote control to align the horizontal and vertical green lines on screen, with the cabinet reference marks on top center and left
   center of cabinet.
10. Press ACTION button to display red center correction screen.
11. Use the navigation buttons on the remote control to align the red cross with the white cross pattern at the center of the screen. To prevent picture tube damage do not leave test pattern on for an extended period of time.
12. Press “0” on the remote control keypad to display the BLUE center correction screen, repeat procedure for adjusting blue. If needed press “0” again to return to RED correction screen. An adjusted cross pattern appears white with a minimum of color protrusion.

NINE POINT CONVERGENCE CORRECTION
Remote Control must be in TV mode.

1. Press ACTION button to display red correction screen.
2. Press the 1 through 9 keypad buttons on the remote control to select the desired convergence position.
3. Use the navigation buttons to align the RED cross with the white cross pattern.
4. Press “0” on the remote control keypad to display the BLUE correction screen, then repeat procedure.
5. To exit press ACTION button repeatedly, then press CH up.
   
6. 
   

1. 
   

hi there !

-if you switch the computer on and it boots up and you hear the windows sound, this could be a possible video problem or motherboard problem
-run the diags on the LCD, while the computer is off, press and hold "D" then press power button at the same time, if you see the colors red blue green without any problems then it is a motherboard or video card problem
-another method to run the test is while the computer is off; preess and hold Fn then press power button, let the test run; when you see the question were colour bars displayed, press N, if you see the colors red blue and green without any problem then it is a motherboard problem or video card; otherwise it is an LCD problem
-to toggle display on the external monitor press Fn then F8

cheers !

You need to manually adjust the alignment:
On remote, press Menu to get to the main menu
Then arrow down to "ADVANCED FEATURES"
Then press "enter"
Then Arrow down to "CONVERGENCE" and press "enter"
"Red Convergence" should be highlighted
Press "enter"
You now have Green, Red, and Blue overlapping crosses.
If Red is out of whack, use arrows to align
To toggle to blue (and back to red), press "VIDEO"
Then align blue cross
Once the crosses look aligned, and nice and white, press "AUDIO"
This will bring up the Advanced Convergence screen
This is a grid of the same overlapping colors
You have control over the Red and Blue
If Green is very out of whack, you'll need a repairman…
While the "target" is flashing, you can move it around the screen with the arrows
Place it over an intersection to adjust, then press "enter"
Now the "target" is steady (not flashing), and you can use the arrows move your color
When it's aligned, press "enter" again
Now "target is flashing, and you can go to the next square.
You cannot adjust every intersection.
Some areas need to be adjusted via the adjacent intersection
When you're happy with color you're working on,
Press "video" while target is flashing to change to the other color
Repeat the above (blue is much harder to see and adjust for me…)
When you're happy with the entire grid, start hitting "Menu"
Each press brings you back out one menu level, until you are out of them
Once you're used to the process, it should take no more than a minute or two.

Sorry time for a new monitor you might open it up and look at the capacitors and see if any need to be replaced the bad ones will be domed on top normal is completely flat

If you seeing an absence of greens it usually means your connector at the back of the flat panel are not tightened firmly. Use a screwdriver to get them snug. The same goes for the connector at the back of the PC.