Had 2 bars on the screen some time back,now can not use my lp as can see symbols, aphabets and nubber on the screen,i think the graphic card in got,i did open the lp and also removed the graghic card fruno:V000054110 (ATI 64MB), no know where to find one .
When you get all those letters and weird codes on the screen, does it do that at the POST screen? If so, the only way to really troubleshoot that problem is to have another ATI video chip to replace. Other than that, i would check the LCD display for a short. you would have to take the plastic cover off and look for the ground wire (use a multi-meter to determind this). If the ground is not properly secure, then secure it with electrical tape.
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1. Press the Fn key and while holding it down, press the F8 key momentarily to toggle muting of the speaker. An icon of the speaker appears at the bottom middle of the screen showing muting on or off.
2. After making sure the muting is off (no slash symbol on the speaker icon), press and hold Fn again.
3. With Fn pressed, press the key with the upward triangle and speaker symbol to increase volume which is shown at the bottom middle of the screen by the green lettering & vertical bars Volume ''''''''''''
4. With Fn pressed, press the key with the downward triangle and speaker symbol to decrease volume which is shown at the bottom middle of the screen by the green lettering & vertical bars Volume '''
This is a bad solder connection on one of the matrix controller chips on the LCD screen. You'll need to solder it back down. Either have a professional (the kind that looks at the issue and says "yep, that can be fixed") or if you insist on doing it yourself, make sure you have liquid solder flux to avoid bridging, and fine desoldering braid in case something bridges anyway, and a magnifying glass or low power microscope to see if you bridged any connections before powering the screen back up.
From Dell user manual: The numeric keypad functions like the numeric keypad on an external
keyboard. Each key on the keypad has multiple functions. The keypad
numbers and symbols are marked in blue on the right of the keypad keys.
To type a number or symbol, press <Fn> and the desired key after
enabling the keypad.
To enable the keypad, press <Num Lk>. The
light indicates that the keypad is active.