Apple imac 20 inch early 2008 User Manual

							iMac (20-inch Early 2008)  Take Apart — Glass Panel 41
Clean the INSIDE surface of the glass panel with the silicone roller. Gently roll the clean 5. 
silicone roller over the inside surface of the glass. Note: If	fingerprints	and	oils	are	on	
the	inside	of	the	glass,	clean	the	inside	first	with isopropyl alcohol or use the LENSPEN 
LapTop PR O. 
Holding the glass by the edges, carefully line up the metal pins on the inside of the glass 6. 
panel with the holes at the top of the front bezel and the hole at the bottom of the bezel. 
Gently lower the glass panel onto the bezel. The magnets on the front bezel will pull and 
hold the glass panel in place.   
						

							iMac (20-inch Early 2008)  Take Apart — Glass Panel 42
Peel the protective film from the outside surface of the glass panel.  If the glass panel pulls 7. 
away from the front bezel, gently hold it in place while removing the protective film.
8.  Clean the outside of the glass panel with a clean microfiber cleaning cloth and use the 
LENSPEN LapTop PR O to remover smudges or fingerprints on the outside of the glass panel.
If necessary, spray a small amount (two pumps) of iKlear polish on the outside of the glass 
9. 
panel. Wipe the glass until the solution completely disappears and there is no longer any 
residue or haze.
Once the glass has been cleaned and polished, visually inspect the glass for any remaining 
10.  
dust, fingerprints, or a hazy residue. If there are contaminates trapped between the LCD 
panel and the glass panel repeat the cleaning procedure described in this section before 
returning the system to the customer. 
Replace the memory access door.
11 .  
						

							iMac (20-inch Early 2008)  Take Apart — Glass Panel 43
Cleaning Tool Kit
The following tools are offered in the cleaning kit (076-1277).
Suction cups, Qty. of one (pair)
• 
Sticky silicone roller (6-inch) to clean the glass panel, Qty. of one • 
Sticky sheets to clean the silicone roller, Qty. of 2 pads• 
Polishing cloths, clean, anti-static, micro fiber “terry” style cloth, Qty. of one (5 cloths)• 
Gloves, lint-free, anti-static, Qty. of two (pair) • 
Microfoam bag to store the glass panel, Qty. of one (5 bags) • 
ESD bag for LCD display storage, Qty. of one (5 bags)• 
Cleaning Tool Resources
MCM Portal (http://www.mcmb2b.com/appleasp)1. 
LENSPEN: www.lenspen.com, the LapTop Pro or the VidiMax are very effective in removing 2.  
fingerprint smudges on the LCD and on the inside surface of the glass. 
iKlear distributors: (http://www/iklearscreen.com/iKlear.aspx)
3. 
iKlear International dealer listing
•	 : http://meridrew.com/international.html
iKlear US/Canada dealer listing:
•	  http://meridrew.com/search/search.php
Japan: Pleiades Digital Communications, Inc.www.pleiadesdesigns.co.jp
4.  
Brillianize is an alternative cleaning solution http://www.brillianize.com/5. 
Brillianize products are listed here: http://www.brillianize.com/products2.html
•	
Brillianize dealer locator: http://www.brillianize.com/brillianize_dealer_locator.htm
•	
Cleaning Cloth
6.  
The micro fiber “terry” style cleaning cloth can be purchased directly from iKlear or 
•	
Brillianze 
						

							iMac (20-inch Early 2008)  Take Apart — Glass Panel 44
LENSPEN Screen Cleaning Device
LENSPEN products are simple to use and are effective at removing smudges and fingerprints on 
the inside/outside of the glass panel. The two LENSPEN products that have been tested on the 
iMac are shown below, the VidiMax and the LapTop-Pro. Refer to www.lenspen.com for more 
information. 
						

							iMac (20-inch Early 2008)  Take Apart — Glass Panel 45
Ionizing Air Gun
The ionizing air gun is an optional tool you may want to consider when cleaning iMac glass 
panels. The ionizing gun performs electrostatic elimination and dust removal instantly with ion 
balanced air.  Various sources can be found in Google. 
						

							iMac (20-inch Early 2008)  Take Apart — Front Bezel 46
Front Bezel
Tools
This procedure requires the following tools:
Torx T8 screwdriver
• 
Soft, clean towel or cloth• 
Preliminary Steps
Before you begin, remove the access door and glass panel.
Part Location 
						

							iMac (20-inch Early 2008)  Take Apart — Front Bezel 47
Removing the Front Bezel
Place the computer on a soft protective lint-free surface such as a very clean ESD mat to 1. 
avoid damaging the finish on the stand or rear housing. 
2.  Position the computer on the rear cover with the stand facing you. 
Remove the 
3. twelve screws around the bezel. Replacement Note: The four longer screws 
(25mm) attach along the bottom of the panel.
922-8207, 25 mm
922-8206, 13 mm 
						

							iMac (20-inch Early 2008)  Take Apart — Front Bezel 48
With the upper corners loosened, lift up—but do not remove—the bezel.
4.
 
Notice the connected microphone cable at the top of the bezel. Without straining the cable, 5. 
hold the bezel up, and disconnect the microphone cable from the cable extension. 
						

							iMac (20-inch Early 2008)  Take Apart — Front Bezel 49
Continue lifting the front bezel toward you and off the rear housing.
6.
  
						

							iMac (20-inch Early 2008)  Take Apart — Front Bezel 50
Replacing the Front Bezel
Place the computer on a soft protective lint-free surface such as a very clean ESD mat to 1. 
avoid damaging the finish on the stand or rear housing. 
Position the computer on the rear cover with the stand facing you. 
2.  
Position the bottom of the front bezel over the bottom edge of the rear cover.  3. 
Lower the front bezel, connect the microphone cable to the extension cable and pull the 4. 
cable up slightly through the opening in the bezel. Carefully lower the bezel onto the 
computer, and make sure the cable is not pinched. Tuck the cable into the opening at the 
top of the bezel.