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Acer Aspire 1642 Disassembly Guide

Contents

Introduction ................................................................................................................................................ 3

What you will need ................................................................................................................................. 3

Removing/Replacing the CD Tray................................................................................................................ 4

Step 1 – Remove the Battery .................................................................................................................. 4

Step 2 – Remove top cover ..................................................................................................................... 4

Step 3 – Removing the Keyboard ............................................................................................................ 5

Step 4 – Remove the CD/DVD tray retaining screw ................................................................................ 6

Step 5 – Sliding out the CD/DVD tray ...................................................................................................... 6

Step 6 – Removing CD/DVD tray support ................................................................................................ 7

Step 7 -Taking the CD/DVD tray apart..................................................................................................... 8

Cleaning the Cooling Fan .......................................................................................................................... 10

Step 1 – Undo 2 screws, and remove a third ........................................................................................ 10

Step 2 – Remove Cover ......................................................................................................................... 10

Step 3 –Remove fan cover screws ........................................................................................................ 10

Step 4 – Time to Clean .......................................................................................................................... 11

Accessing the Wireless Module ................................................................................................................ 12

Step 1 – Undo Cover Screws ................................................................................................................. 12

Step 2 – Remove Cover ......................................................................................................................... 12

Step 3 – The Wireless Module .............................................................................................................. 13

Changing The RAM .................................................................................................................................... 14

Step 1 – Undo Cover Screws ................................................................................................................. 14

Step 2 – Remove Cover ......................................................................................................................... 14

Step 3 – Under the Cover ...................................................................................................................... 15

Summary of content (17 pages)

PAGE 1
Acer Aspire 1642 Disassembly Guide Contents Introduction ................................................................................................................................................ 3 What you will need ................................................................................................................................. 3 Removing/Replacing the CD Tray................................................................................................................
PAGE 2
Step 4 – Removing the RAM ................................................................................................................. 16 Step 5 – Inserting New RAM ................................................................................................................. 16 Step 6 – Reassemble .............................................................................................................................
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Introduction Welcome to my guide for disassembling an Acer Aspire 1642 Laptop. I’ve had problems with my CD drive and when ACER wouldn’t fix it I was forced to take things into my own hands. I was unable to find a guide to remove the CD tray so I had a go and decided to make this guide along the way. It also covers installing new RAM, getting to the Wireless module, cleaning the cooling fan, and replacing the keyboard.
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Removing/Replacing the CD Tray Step 1 – Remove the Battery This should be pretty self explanatory. If you can’t do this, stop here, don’t attempt anything else!! Removing the battery isn’t actually critical to any of the following steps, but it’s always safer if there is no power through the machine when you are working on it. Step 2 – Remove top cover We need to remove 3 screws on the back of the laptop (Circled). These are 2 on the left (Fig. 1), and 1 on the right (Fig. 2). Fig. 1 Fig.
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Fig. 3 Step 3 – Removing the Keyboard Now we need to remove the keyboard. First undo the 2 screws circled in Fig.3. After this it is a case of manipulating the keyboard tray until it come out. The tray has tabs that hold it in place along the bottom, and also half way up along the sides. These are circled in red on Fig. 4. Alignment Tabs Ribbon Cable Fig.
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While you are removing the keyboard tray it will probably feel as if you are pulling against something holding it down. This will be the adhesive that is between the underside of the tray and the laptop body. Don’t worry about the adhesive not re-sticking afterwards, the screws you have just removed do the job just fine. When the keyboard finally comes loose there is a ribbon cable attaching it to the laptop body, so make sure you don’t pull it too hard and damage this cable.
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Fig. 6 Step 6 – Removing CD/DVD tray support So now you have the CD/DVD tray out you can either put in a new one, or repair the one you have. If you are putting in a new drive you will need to take off the black plastic that surrounds the CD/DVD tray, as this acts as the support. There are 6 screws to undo. These are shown in Figs, 7,8 and 9. Fig. 7 Fig. 8 Fig.
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The two screws in Fig. 8 are larger than the other four, so be sure to keep them separate. Once this is off you can take off the front “bezel”. This is the plastic cover on the part of the tray that slides out. This is just held on with clips, so you can lever it off from either end. If you are replacing your drive with a new one, you can now attach the plastic support and bezel to the new tray, and follow the steps backwards. If you want to take the drive apart further, read on.
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Fig. 11 At this point I bent one of the metal tabs on the top cover so that it gave a tighter fit, and re-assembled. If you want to take the CD/DVD tray apart further you will either need to go ahead and take out some screws etc... (and write a guide while you are at it!) or find another guide which covers taking these things apart.
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Cleaning the Cooling Fan Step 1 – Undo 2 screws, and remove a third This step is pretty simple. Flip the laptop upside-down and unscrew the two bottom screws (circled in Fig. 12). These won’t fully remove, as they are held in by screw retainers. Unscrew and remove the top screw. Fig. 12 Step 2 – Remove Cover Lever the cover off from the bottom end. You might have some trouble getting it to unhook at the top. Just move it around until it comes off.
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Fig. 13 Step 4 – Time to Clean You can now lift back the lid of the internal cover, and use a canister of air, or any other method of cleaning the fan. Fig.
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Accessing the Wireless Module Step 1 – Undo Cover Screws Turn the laptop upside-down, and unscrew the two screws indicated in Fig. 15. These will not fully come out of the cover, as they are held in by retaining clips. Fig. 15 Step 2 – Remove Cover Lever the cover off from the bottom. There are tabs halfway up, which need to be released. I found the best way to do this is to run a finger along under the edge of the cover. Once these are released it is quite easy to slip the cover out.
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Step 3 – The Wireless Module The Wireless Unit is shown in Fig. 16. Fig. 16 Retaining Clips To remove the module from its clip, push the two retaining clips outwards. The Wireless Module will pop up, and can be easily removed from its holder. Be careful for the antenna wire which still is attached to the main body.
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Changing The RAM Step 1 – Undo Cover Screws Turn the laptop upside-down, and unscrew the two screws indicated in Fig. 15. These will not fully come out of the cover, as they are held in by retaining clips. Fig. 15 Step 2 – Remove Cover Lever the cover off from the bottom. There are tabs halfway up, which need to be released. I found the best way to do this is to run a finger along under the edge of the cover. Once these are released it is quite easy to slip the cover out.
PAGE 15
Step 3 – Under the Cover In the laptop there will be either one or two RAM modules. They are both removed in the same way. Fig. 17 shows what is under the cover. The RAM modules are circled in red. My laptop has two modules, and they overlap each other. Fig.
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Step 4 – Removing the RAM To remove the RAM you need to push the two retaining clips away from the RAM module. Once these have been pushed away the RAM module will pop up slightly and you will be able to slide it out. Fig. 18 The RAM module retaining clips are circled in Fig. 18. The left pair are for the top module, and the right pair are for the bottom module. Step 5 – Inserting New RAM To install new RAM slide the contacts into the RAM slot, with the RAM angled slightly upwards.
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Copyright Info This guide was written by P Ham on 17th November 2007. Any and all content is the property of the above. All included photos were taken by myself, and the entire guide written by myself. No information was taken from other sources. Feel free to distribute this document, however please do not charge money for it.