Dell Inspiron 3500 Service Manual

							Removing and Replacing Parts 4-25
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To remove the LCD panel from the EMI pan, see Figure 4-14 and follow these 
steps:
1. Remove the display assembly.
2. Remove the bezel.
3. Remove the LCD interior assembly.
4. Remove the panel rails.
5. Remove (and save for installation) the Kapton tape from the lower right cor-
ner of the LCD interior assembly.
NOTE: When removing the EMI tape, hold each end of the tape at all 
times. If one end is released, the tape will curl and stick to itself.
6. Remove (and save for installation) the EMI tape from the side and the bot-
tom of the LCD interior assembly.
7. Remove (and save for installation) any other Kapton or EMI tape securing 
the LCD cable to the EMI pan.
8. Lift the LCD panel out of the EMI pan. The LCD FPC cable remains inside 
the EMI pan, held in place by Kapton tape. 
						

							4-26Dell Inspiron 3500 Portable Computer Service Manual
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To disassemble the hard-disk drive, see Figure 4-18 and follow these steps:
1. Remove the hard-disk drive from the base of the computer. 
2. Remove the 4-mm screw from the side of the hard-disk drive. 
3. Lift up the large plastic tab that the screw had previously secured. There 
are a series of small plastic tabs along the three sides of the plastic carrier.
4. Unsnap the plastic carrier along three sides.
5. Turn the carrier over in your hand so the hard-disk drive partially falls into 
your hand. The 9.5-mm hard-disk drive uses a spacer inside the plastic car-
rier for proper fit.
6. Slide the hard-disk drive connector out of the plastic retainer inside the 
plastic carrier and remove the drive completely from the carrier.
7. Use the plastic pull to remove the flex cable from the hard-disk drive.
NOTE: Although the connector may not be as wide as the set of pins, it is 
keyed so it can only fit one way on the pins. 
7\SH RI 6FUHZ 7RUTXH
FPH 3 x 4 (1) 2.0–2.5 kgf-cm
hard-disk 
drive
4-mm 
screw
plastic 
carrier
hard-disk 
drive 
connector plastic 
retainerplastic pull  flex cable plastic tab 
						

							Removing and Replacing Parts 4-27
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To disassemble the diskette drive, see Figure 4-19 and follow these steps:
1. Remove the diskette drive from the options bay.
2. Remove the two 4-mm screws from the top of the diskette drive assembly.
3. Carefully unsnap the upper plastic from the lower plastic. It is held in place 
by a series of internal plastic tabs around the edge of the holder.
4. Lift the diskette drive out of the lower plastic. The metal bracket for the 
connector may lift out as you remove the diskette drive.
7\SH RI 6FUHZ 7RUTXH
FPH 2.5 x 4 (2) 2.5–3.0 kgf-cm
upper plastic4-mm
screws (2) 
lower plastic diskette drivemetal bracket 
						

							4-28Dell Inspiron 3500 Portable Computer Service Manual
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To disassemble the CD-ROM drive or optional DVD-ROM drive, see Figure 4-
20 and follow these steps:
1. Remove the CD-ROM drive or the optional DVD-ROM drive from the 
options bay.
2. Remove the 3-mm screws from both sides of the drive assembly.
3. Insert a flat blade into the slots on the side of the upper plastic and care-
fully pry the upper plastic away from the lower plastic. There is a series of 
internal plastic tabs around the edge of the holder.
4. Remove two 5-mm screws securing the drive into the lower plastic.
5. Turn the drive assembly over so that the drive falls out of the lower plastic 
into your hand.
6. Slide the metal plate off of the end of the drive.
7\SH RI 6FUHZ 7RUTXH
FPH 2 x 3 (3) 1.5–1.8 kgf-cm
FPH 2.5 x 5 (2) 2.5–3.0 kgf-cm
lower plastic CD-ROM 
drive or 
DVD -ROM 
drive upper plasticmetal plate
5-mm screws (2)
3-mm drive 
assembly 
screws (2)
3-mm mount-
ing bracket 
screw 
mounting 
bracket 
						

							Removing and Replacing Parts 4-29
7. Remove the 3-mm screw holding the mounting bracket to the drive, and 
then remove the bracket.
8. Remove (and save for installation) any Kapton tape securing the drive 
cable.
9. Disconnect the cable.
NOTE: To remove the media from the CD-ROM drive or DVD-ROM drive once 
the power to the drive is off, insert a small, thin object (such as one end of a 
paper clip) into the pinhole near the drive’s LED. This will eject the media tray 
so you can retrieve the CD or DVD. 
						

							4-30Dell Inspiron 3500 Portable Computer Service Manual
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To disassemble the optional Zip drive, see Figure 4-21 and follow these steps:
1. Remove the optional Zip drive from the options bay.
2. Remove the two 5-mm screws from the top of the drive assembly.
3. Carefully unsnap the upper plastic from the lower plastic. It is held in place 
by a series of internal plastic tabs around the edge of the holder.
4. Lift the Zip drive out of the lower plastic. The metal bracket for the connec-
tor may lift out as you remove the Zip drive.
NOTE: To remove the media from the Zip drive once the power to the drive is 
off, insert a small, thin object (such as one end of a paper clip) into the pinhole 
in the drive’s LED. This will eject the Zip disk.
7\SH RI 6FUHZ 7RUTXH
FPH 2.5 x 5 (2) 2.5–3.0 kgf-cm
metal 
bracket 5-mm screws (2)
Zip drive
lower plastic upper plastic 
						

							Removing and Replacing Parts 4-31
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NOTE: You can remove the keyboard while the display assembly is still 
attached. However, Dell strongly recommends removing the display assembly 
before removing the keyboard to prevent cosmetic damage.
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The keyboard can be removed without removing the palmrest. To remove the 
keyboard, see Figures 4-15 and 4-22 and follow these steps:
1. Remove the display assembly.
2. Place the computer base face down.
3. Remove the three 16-mm keyboard screws from the bottom of the com-
puter (see Figure 4-22). The keyboard screws have a “K” tooled into the 
plastic beside them.
4. Turn the computer face up.
5. Lift the top edge of the keyboard up, and then slide the keyboard out from 
beneath the palmrest assembly. Do not try to completely remove the key-
board, for it is still attached to the system board by a cable.
6. Disconnect the keyboard cable from the side-lift ZIF connector C42 on the 
system board.
7. Remove the keyboard. 
NOTE: The ZIF connector cap for the keyboard is stocked as a separate part. If 
the plastic connector cap is broken, a new one can be snapped in place 
without having to replace the entire system board. 
7\SH RI 6FUHZ 7RUTXH
FPH 2.5 x 16 (3) 3.5–4.0 kgf-cm
16 - m m  
screws (3) 
						

							4-32Dell Inspiron 3500 Portable Computer Service Manual
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The infrared (IR) board can be removed without removing the palmrest. To 
remove the infrared board, see Figure 4-16 and follow these steps:
1. Remove the display assembly.
2. Remove the 5-mm screw securing the IR board to the right system board 
rail.
3. Lift the IR board to expose the wires. Disconnect the IR cable from con-
nector J4 on the system board.
4. Remove the IR board.
NOTE: Reconnect the IR board to the system board by carefully threading the 
wires and connector by the I/O bracket and using a screwdriver to press on the 
connector to reseat it.
7\SH RI 6FUHZ 7RUTXH
FPH 2.5 x 5 (1) 3.0–3.5 kgf-cm 
						

							Removing and Replacing Parts 4-33
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The LVDS board can be removed without removing the palmrest. To remove 
the LVDS board, see Figure 4-16 and follow these steps:
1. Remove the display assembly.
2. Remove the keyboard.
3. Carefully lift the LVDS board off of connectors J2 and J3 on the video 
board. The board is surrounded by an EMI fence.
NOTE: For grounding purposes, there may be EMI tape running from the LVDS 
board to the I/O bracket. Note the placement of the tape and, during installa-
tion, replace it in the same position.
When installing the LVDS board, put pressure only on the areas where the con-
nectors on the LVDS board and on the video board fit together. Pressing on 
other areas may flex the board and break connections.
NOTE: The LVDS board is unique for each type of LCD panel. During installa-
tion, make sure that the LVDS board is the correct one for the panel and that 
any EMI tape attached to the board is replaced in its original position. 
						

							4-34Dell Inspiron 3500 Portable Computer Service Manual
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The heat-sink fin cover can be removed without removing the palmrest. To 
remove the heat-sink fin cover, see Figure 4-16 and follow these steps:
1. Remove the keyboard.
2. Remove the 3.5-mm screw securing the cover to the heat-sink fin.
3. Remove the heat-sink fin cover.
7\SH RI 6FUHZ 7RUTXH
FPH 2 x 3.5 (1) 1.5–1.8 kgf-cm