Question about Compaq Presario Notebook
Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either 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.
Posted on Aug 30, 2010
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Posted on Jan 02, 2017
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Posted on Jan 03, 2010
Try the following steps:
Open your laptop carefully (look out for fragile ribbon cables) !
Check for a broken wire going to the internal speaker.
Check for a faulty contact at the audio output jack (these things have a contact which disconnects the internal speaker when a plug is connected).
Temporarily connect any speaker in the place of the internal speaker.
If the problem is still the internal speaker, remove it and go to any good audio components shop and buy an equivalent speaker.
Hope this helps.
Posted on Nov 25, 2011
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