Question about HP 48gx Calculator

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When I turned it on this morning I had a "blue Contrast" covering the screen. I can see thru but not very well. All functions appear to be working. I have tried replacing the batteries but no help. Did I hit a wrong setting button or something?

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With the calculator turned on, hold down the ON key and press - to lighten the screen, or + to darken it.

Posted on Apr 27, 2010

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Screen dark when i turn it on


try adjusting the contrast of ur screen. There is an Fn button in blue and contrast key in blue also. Press the Fn key and the contrast key together till u get the the darkness u want.

If this does not work, u need to get a technical guy to check the connection of ur display or u might need to replace ur display.

Jul 27, 2011 | Computers & Internet

2 Answers

How do I the ALPHA f1 function menu to appear so I can enter fractions


Hi...

You can access F1 by
  1. Press and Release "ALPHA" Key
  2. Now press desire function key. Here in this case, Press "Y="

nightflare_12.jpg

Many keys in this calculator serves one than one function which can be access through by pressing either "2nd"(Blue Key) or "ALPHA"(GREEN KEY). Such extra functions are noted on keys in Green or Blue color. These additional functions are accessed by first pressing corresponding color key and desired function Key.

For example:
pressing UP and DOWN keys navigates the screen up and down
if we press ALPHA key and then UP/DOWN key, it will scroll screen UP/DOWN by a page. Also you can use this combination for copy functions.
if we press 2nd Key instead of ALPHA, we can change Contrast of The screen

Mar 18, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

Blue screen on technics kn2000 pcm keyboard all else works


IF the normal screen had a blue background, POSSIBLY the contrast setting got moved to the end of range making the characters invisible.

The contrast control MAY be called several names including CONTRAST, VIEWING ANGLE, etc... Refer to your user manual.

Sep 10, 2010 | Music

1 Answer

I cant get the color right. its to red??? any help? i did notice with the back cover off, there are 6 adjustment screws


yes! those are the screen and focus adjustments. 3 for screen, 3 for focus. try this. go in menu....turn down color, brightness, contrast all they way down. you should then have no picture, but in your case a little red. then go to back of tv and turn those 3 screen adjustments all the way down. slowly turn the screens back up until you get barely a picture. because remember, your brightness and contrast is all the way down. the picture should be dim but seeable and with red, green, blue adjustments, make it a black and white picture. when balanced..... turn up color , brightness, contrast in menu. enjoy!

Nov 14, 2009 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

The menu that controls contrast, brightness ect is stuck on the menu and when i push the number 1 button on he monitor it does nothing but lock the osd. If i hit the down button the contrast will move down...


Try pressing the number 1 again. It should exit the OSD. While the screen is stuck with the OSD. Press the power button (blue) and push to turn it on again.

Hope this helps.

Mar 15, 2009 | ViewSonic VX924 19" LCD Monitor

1 Answer

Screen Contrast


On, your keyboard, there is the FN key in blue. hold it and go over to the four arrows pointing. up,down,left and right. the top and bottom arrows is what you use to change your comeputer's contrast.

Feb 24, 2009 | Acer Aspire 3000 Notebook

1 Answer

HX-P4241W appears yellow. Left and Right of screen are yellow


Yellow is the lack of blue. It can happen when you are running your contrast - which is your overall light level - too high.

Try turning down your contrast. On CRT tech, contrast should always be run at half what the factory allows as full, on the user controls. Full up is what calibrators call Torch Mode, and is NOT the way to get performance to be in the linear operating range of CRT tech.

If your sides are more yellow than your middle, your set may need lenstriping. Mild yellow on the sides is not uncommon, and usually not noticed. But heavy yellow on the sides would indicate that the blue image needs work on white field uniformity.

Yellow is the lack of blue, in CRT tech.


Mr Bob

Feb 02, 2008 | Samsung HC-P4241W 42" Rear Projection...

1 Answer

Squares visible in bright colors


Turn down the contrast to about 55-65% of maximum. Also turn down sharpness to about 10-20% of maximum.

If ther is a Contrast Plus option, or digital contrast, turn to minimum or off. (Dependant on TV)

This is a common side effect with digital television.

Jan 23, 2008 | Philips Magnavox 42MF521D/37 Television

2 Answers

Won't record/No picture thru the LCD screen or viewfinder in Record or Standby Mode


it is a common problem with them. sony has a recall on ccd imager for this model. call sony and they will fix it for free

May 29, 2007 | Sony Handycam DCR-TRV22 Mini DV Digital...

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