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This might be a sign of a faulty LCD cable or screen inverter board.
The LCD cable transfers data signal from the motherboard & video card to the LCD screen. It also supplies high voltage DC power to the screen inverter board. The screen inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. It converts low voltage DC power to high voltage AC power needed for the backlight lamp.

Test with an external monitor attached to the laptop. If you get display on the external monitor, then this confirms the case.

Posted on Aug 21, 2010

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Posted on Jan 02, 2017

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Screen shows nodata


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Netflix on my laptop shows part screen


See if you have a "full screen" option on Netflix's window.

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I have a PB6200 BenQ projector. When the computer starts up it shows the BenQ and then shows the windows computer startup screen until it finally fully boots up. Then the projector does not show what is...


There's a display "toggle" sequence on your computer to send the signal to your external post (VGA?). Look at the Function keys (top row) for a screen icon. Hold Fn key down and press that Function key (on Dell, usually F8). You should get an indication on your screen of which outputs are active -- look for BOTH.

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Where is the constant factor key on a Canon P170-DH?


How to do constant multiplication or division on the Canon P170-DH calculator

This process actually requires fewer keystrokes than other calculators. Basically, just do the first problem
and then do the next items with just the next number and the EQUAL key. For example,

*** Constant Multiplication ***
2 (multiply key)
10 (= key)
(The answer 20 shows on the screen. Note, the 2 is still stored as a constant without doing anything, just continue)
4 = (shows the answer 8 on the screen)
20 = (shows the answer 40 on the screen)
100 = (shows the answer 200 on the screen)

*** Constant Division ***
10 (divided by key)
2 =
(shows the answer 5 on the screen, the 2 is still stored as a constant without doing anything, just continue)
100 = (shows the answer 50 on the screen)
500 = (shows the answer 250 on the screen)
4 = (shows the answer 2 on the screen)

Feb 26, 2010 | Canon P170-DH Calculator

1 Answer

No display on screen


It's either the backlight lamp or screen inverter is busted. Here's how to determine which is which:
  1. Grab a flashlight.
  2. Boot up.
  3. Shine the flashlight onto the screen.
  4. If you cannot see any display even a faint one, the screen inverter is dead, else the backlight lamps are busted.
  5. Replace which ever is the culprit.

Sep 25, 2009 | HP Pavilion dv9000z Notebook

1 Answer

Lens & screen show black instead of item to be shot.


You need to go into the menu function to turn the screen on (this feature saves the batterys)

Dec 08, 2008 | Cameras

1 Answer

Cannot find the constant key for multiplication


How to do constant multiplication or division on the Canon P170-DH calculator

This process actually requires fewer keystrokes than most other calculators. Basically, just do the first problem
and then do the next items with just the next number and the EQUAL key. For example,

*** Constant Multiplication ***
2 (multiply key)
10 (= key)
(The answer 20 shows on the screen. Note, the 2 is still stored as a constant without doing anything, just continue)
4 = (shows the answer 8 on the screen)
20 = (shows the answer 40 on the screen)
100 = (shows the answer 200 on the screen)

*** Constant Division ***
10 (divided by key)
2 =
(shows the answer 5 on the screen, the 2 is still stored as a constant without doing anything, just continue)
100 = (shows the answer 50 on the screen)
500 = (shows the answer 250 on the screen)
4 = (shows the answer 2 on the screen)

--------------
Also note! There is no K visible on the screen to indicate a constant is set.

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1 Answer

Display issues


Could you show a picture of the screen?. The problem is probable the LCD screen or cabling.
You can get the replacement parts here:

http://www.piezas.biz/epages/wwwpiezasbiz.sf/en_GB/?ObjectPath=/Shops/demo132390/Products/%22Pantallas%20portatil%22

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