When pressing the top row of keys (F9, F12, pause, delete), the play (sagging) is about 4-6 mm, the left side of keyboard is normal (1-2 mm).
The keyboard and switch cover was replaced (top cover hinges are not clipped in properly) but did not fix issue, I suspect its either due to system board not installed properly when it was replaced or the top cover is defective. I went to local PC dealer and compared various models such as HP 8730, 6730, 6710, etc. and none of them have the same problem I experience. The 3 laptops mentioned have about 1 mm play (sagging) when pressing the (F9 - delete) top row of keys.
Display aint great, is it due to Intel 965 Express Chipset Family Display adapter (driver version: 18.104.22.1687), how can I check if display card and LCD is ok (are not damaged).
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The blue keys serve as a secondary function for your volume control, monitor controls and pause play fast forward rewind (in media mode). In order to use the blue keys that are numbered from F1 to F12, you must depress and hold the Fn key that is located at the bottom left side of the keyboard. Here is a way to test it: Open up any file that plays sound for longer than 1 minute (60 seconds). While this file is playing, hold down the Fn key and simultaneously press F8 and listen to the volume get louder or Fn and F7 together and listen to the sound get lower. The picture of the crescent moon F1 will adjust the brightness of your screen. F2 will magnify your screen. F3 will take you to your email. F4 will take you to your internet home page. F6 will mute the volume. F7 will lower the volume. F8 will raise the volume. F9 will rewind your video playing. F10 will stop the video. F11 will pause or play the video. F12 will fast forward the video.
If your HP laptop is a wide screen with a full size keyboard and separate numbet keypad then the Prt Scr key also doubles up as the Home key it is located on the top row of keys on the Number keypad. If your HP laptop is a standard laptop keyboard then the Prt Scr key also doubles as the Scroll key and it is next to the F12 key.
Compaq Presario computers provide users with a row of
function keys for added keyboard functionality. Function keys can serve a dual
purpose as well.
Function keys are located at the top of Compaq Presario
By learning how function keys work on a Compaq Presario you
can take advantage of time saving keyboard shortcuts.Purpose
Use function keys to access menus, save changes and create
Various applications, including Microsoft Office, allow you
to select a function key as a shortcut key for running specific tasks. These
settings are usually found under the Tools, Settings or File menu.
Each Compaq Presario computer has twelve function keys.
The most common used keys are "F2,"
"F8," "F10" and "F12."
The first three are used mainly to access and use the Compaq
BIOS. "F12" is used to access a set of run from options during the
How to Access
Access function keys on a Compaq Presario by pressing any
of the keys on the top row of the keyboard. Access the key's dual purpose by
first pressing the "Fn" key located on the bottom row of keys.
Use function keys as shortcut keys by pressing them anytime
while in the desired application. Remember, you must set them as shortcut keys
Note that some programs may already have certain function
keys set as shortcuts.
Open menus and view the shortcut keys beside each menu item
before setting your own shortcuts.
Each function key has a dual use. Press "Fn" plus
the desired function key for the key's other use.
Below each function number is a small picture within a
square or rectangle.
This dictates the dual use. "F1" opens help and
support. "F2" serves as a printer shortcut.
Open your homepage by pressing "F3."
If you use dual monitors, switch between monitors by using
"F4." "F5" puts your computer in stand-by mode.
Quickly lock your computer by pressing "F6."
"F7" and "F8" adjust the screen's contrast.
Play and pause your music in Windows Media Player or other
default media player by using "F9."
Press "F10" to stop playing media. Skip ahead or
rewind media by using "F11" and "F12."
Other "Fn" Keys
In addition to function keys, the "Fn" key is also
provides other keys with a dual use.
Any key with a small square on the key has a dual purpose
such as the "scroll," "insert" and "delete"
Since laptop keyboards have no number pads, certain keys
serve as the number pad by pressing the "Fn" key.
F1 through F12 are called function keys because they execute programmed functions when pressed. Used in combination with the Fn key, keys marked with icons execute specific functions on the computer. The function executed by individual keys depends on the software you are using.
1. Sound Mute: Pressing Fn + ESC in a windows environment turns sound on or off. Press Fn + Enter to simulate Enter or the enhanced keyboard's numeric keypad. 2. Instant security: Press Fn + F1 to blank the screen to prevent others from accessing your data. To restore the screen and original setting, press any key or press the Touch Pad. 3. Power save mode: Pressing Fn + F2 changes the power save mode. 4. Standby: When you press Fn + F3, the computer enters Standby. 5. Hibernation: When you press Fn + F4, the computer enters Hibernation. 6. Display selection: Press Fn + F5 to change the active display device. Hold down Fn and press F5 again to change the device. 7. Internal LCD screen Brightness: Pressing Fn + F6 decreases the display brightness in decrements. 8. Internal LCD screen Brightness: Pressing Fn + F7 increases the display brightness in increments. 9. Wireless setting: If your computer has both Bluetooth and Wireless LAN functions, you can press Fn + F8 to select which type of wireless communication you want to use. 10. Touch Pad: Pressing Fn + F9 in a windows environment enables or disables the Touch Pad function. 11. Press Fn + F10 or Fn + F11 to access the integrated keypad. When activated, the keys with gray markings on the bottom edge become numeric keypad keys (Fn + F11) or cursor control keys (Fn + F10). The power on default for both settings is off. Press Fn + F12 (ScrLock) to lock the cursor on a specific line. The power on default is off. 12. TOSHIBA Zooming Utility (reduce): To reduce the icon size on the desktop or the application window, press the 1 key while holding down the Fn key. (13. TOSHIBA Zooming Utility (enlarge): To enlarge the icon size on the desktop or the application window, press the 2 key while holding down the Fn key.
ok here from left to right top row esc f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 prtscrn scrolllock pause second row ~ 1 2 3 4 5 6 7 8 9 0 - = bkspc insert home page up num lock / * - third row tab q w e r t y u i o p [ ] \ del end pgdn 789+ fourth row caps lock a s d f g h j k l ; ' enter 4 5 6 fifth row shift z x c v b n m , . / shift up 1 2 3 enter bottom row ctrl windows key alt spacebar alt windows right click ctrl 0. hope that helped
Remove the keyboard screws first, the screws that secure the keyboard have keyboard symbols next to the screws.
Some Compaq/HP have slide catches along the top edge of the keyboard between the number keys and the Function keys. Usually the slide catches are located between the ESC & F1 key, F4 & F5 key, F8 & F9 keys, F12 & delete keys. Slide these catches towards the front edge of the keyboard (ie. towards the space bar) you should be able to lift the keyboard clear. Don't forget to unclip the ribbon cables on the keyboard.
F1 = HELP F2 = RENAME SELECTED ITEM, F3 = SEARCH FOR FILE OR FOLDER, F4 =Display the Address bar list in My Computer or Windows Explorer, F5 =Refresh the active window. F6 = Cycle through screen elements in a window or on the desktop. F7 =Displays all commands for this program stored in memory in a pop-up box. Use the UP ARROW key and the DOWN ARROW key to select the command you want, and press ENTER to run the command. You can also note the sequential number in front of the command and use this number in conjunction with the F9 key. , F8 =Displays all commands in the history buffer that start with the characters in the current COMMAND , F9 =Prompts you for a history buffer command number, then displays the command associated with the number you specify. Press ENTER to run the command. To display all the numbers and their associated commands, press F7., F10 =Activate the menu bar in the active program,
Deletes all macro definitions.