Selasa, 07 Juni 2011

Illustration- HP Compaq NX7000 as example.

Illustration- HP Compaq NX7000 as example.
Caution! all power supply, from AC adapter and the battery must be removed before commencing of the dissembling and re-installation work.
For all other brands and models of laptops, additional and general informations relating to disassembling are described under "Common for laptops." .
Common for laptops
There are generally 4 to 6 screws tightening the LCD bezel to the back casing. In some laptop there are screws concealed under the brand or model name sticker.
All screws are covered by the rubber studs.
Remove rubber covers and screws on the bezel.
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 Remove covers to screws  Remove screws
Common for laptops
Common for laptops
Rubber studs covering the screws is the standard for all the laptops of todays.. the screws tightening system is the standard for all the laptops of todays..
Remove front bezel, pay attention to the clip while separating the bezel and the LCD casing.
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 Remove front bezel- the first point to start. Attention: clip on edge
Common for laptops
Common for laptops
As shown, the bottom part of the bezel is the starting point for pulling out the front bezel for all the laptops. Attention: not to broken the clips.
There are between 16 to 30 clips around the inner edge of the bezel.
Front bezel has been removed.
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Common for laptops
The front bezel with the screwing and clipping system is standard for all laptops. There are many clips around the bezel could be seen.
The LCD latches may need to move in-order to take out the bezel and the LCD screen.
Remove the screws that secure the LCD screen.
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The screws- LCD bracket to LCD casing The screws- LCD bracket to the screen
Common for laptops
Common for laptops
In some cases, the screws are not sited as shown, but to unscrew from the side of the LCD casing. This is the standard for almost all the laptops.
Remove screws tightening to the LCD casing.
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The screws- hinge to LCD casing.
Attention: Must not over tighten the screw when re-installing
Attention: This photo show the defect of over-tightening. The plastic encase the screw nuts is cracked. The LCD casing become unusable and need replacement.
Common for laptops
Common for laptops
This is the standard for most of the laptops. This is a common defect for the LCD casing.
The plastic encasing the screw nuts would broken when over tightening the screws.
When laptop is in use, the LCD panel is opened to the level exceed the limit allowed.
LCD screen separates from the LCD bracket.
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Common for laptops
The inverter is sited underneath the screen, it is tighten either to the bracket of the screen or to the casing. Some cases, the inverter is sited beside the screen on the right side.
LCD screen is fully detached after pulling out the LCD cable plug from the LCD and the two wire plug from the inverter board.
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Pull out the LCD cable from the screen. Pull out the cable from inverter board.
Common for laptops
Common for laptops
There are few different type of the cable plug. Ensure to pull out the plug not the individual wire from the plug. Two wire extruded from the fluorescent tube(concealed inside the LCD screen) with a plug that is inserted into the inverter
The LCD screen has been taken out from the LCD casing.
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Search in the search box with the part number "n154i1-l02", this is  the searched result
 
Common for laptops
LCD screens of the same sizes may not be compatible.
There are always different type of screen of same sizes installed in the same model of laptop, and they may not be compatible.
The LCD cable for this laptop
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Search in the search box with the part number "dc025047900", this is  the searched result
 
Common for laptops
There are always different type of LCD cables installed in the same model of laptop, and they may not be compatible.
The inverter board for this laptop.
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Search in the search box with the part number "dac-07b035", this is  the searched result
Common for laptops
In this photo, there are 7 pins socket receiving electrical current and current signal from the main board. There are many different type of sockets with different number of pins (4 to 8 pins). There is no standard form for the inverter.
For the 2 pins socket- the 2 pins is for the supply of electric current to light up the fluorescent tube inside the LCD screen. Two pins is standard for all today LCD screen, but there are many different type of the 2 pins sockets which has no standard form.

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