Question about HP Compaq 6720S Keyboard - K070502A1US

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Some of keys don't work - HP Compaq 6720S Keyboard - K070502A1US

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There could be either of the two reasons. One, your keyboard driver is corrupted and two, the keys are bad. If one, then Start->Control Panel->System->Hardware->Device manager. Here click open the keyboard and select the device shown. Delete it and from the menu select Action and then Scan for new HW. Your driver will be reinstalled. if two, then open up the keyboard from bottom and under the keys you will find a very fine membrane. If that gets cut due to excess pressure on the keys then those keys stop working. This membrane is just one piece and needs to be changed as a whole. Do that and reassemble the keyboard.

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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You don't say what kind of vehicle we are talking about, but it is safe to assume your ignition switch needs to be replaced.

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Program new key for montana


As long as you still have one that works, it's easy.
1) Insert the "original" (working) Key.2) Turn the Ignition to ON (RUN), but do NOT start the engine. Turn the Ignition OFF and remove the key.3) Within 15 seconds insert the new key and turn the Ignition to the ON (just to ON, not to START) position. The Security indicator should light up for about 2 seconds to indicate that the new key has been programmed.
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Had dead battery put new battery in and now the ac works but no air comes out of 4 dash vents. Checked fuse and relay. What next can I do?


When the battery was reconnected, the HVAC went through a recalibration, sometimes this caused the door actuators or the door gears to break or get stuck. Try the following; with the key ON, set all HVAC controls and switches to their OFF or CCW position, key OFF, disconnect battery and reconnect. Set key to ON (don't have to start vehicle) and don't touch any HVAC controls for about 2 minutes. Then try HVAC operation, if vents still don't work, you will need to have a mechanic look at it. Attached is a diagram of the actuator locations.

freddyboy61_19.jpg

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Ti89 responds to resets but nothing else


If the calculator is several years old it may be showing its age.
There is a connection point between the keyboard and the display
that over time loses its efficiency. Try this: press a number key
and at the same time apply pressure with your thumb or index
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If you press hard, the number may just show up in the display.
This is a test for the tightness (or electrical efficiency) of the
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Another way to make this test is to twist the calculator while
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Sometimes the effect is such that the keys on one side or the
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This can be repaired by a good electronic technician if you
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My eee pc 901 doesn't have a working keyboard, someones fiddled with it and now normal keys don't work, but if i press the G key it brings up the goto line box, and all the other keys you'd...


Hi
It seems to be there is pressed button and should be released.
Try with the control keys like ( Ctrl, Alt, Shift, both right and left, and Fn key ).

Press these keys hardly ( not much ) to release them,

Please, Tell us your results.
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1 Answer

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Please define the "-" minus key. Are you talking about the PC's keyboard or a button on the printer's front panel.

Also, what is the make and model of the printer.

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is it sticky or not clicking at all?

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