Manuals

13.3- and 14.1-Inch Display Assemblies: Dell™ Inspiron™ 3500 Portable Computer System Reference

	Exploded View of 13.3-Inch Display Assembly		LCD Interior Assembly Removal
	Exploded View of 14.1-Inch Display Assembly		13.3-Inch LCD Panel Rails Removal
	Display Assembly Removal		14.1-Inch LCD Panel Rails Removal
	Bezel and LCD Latch Removal		13.3-Inch LCD Panel and EMI Pan Removal
	13.3-Inch LCD Inverter Removal		14.1-Inch LCD Panel and EMI Pan Removal
	14.1-Inch LCD Inverter Removal

Exploded View of 13.3-Inch Display Assembly

1 Rubber bumpers (2) 2 Bezel 3 LCD panel 4 EMI pan 5 LED card 6 LED cable 7 LCD cable 8 LCD latch 9 Panel rails (2) 10 5-mm hinge screws (2) 11 5-mm panel rail screws (4) 12 Back cover 13 Bottom FPC bobbin 14 Inverter 15 Hinges (2) 16 Top FPC bobbin 17 Inverter signal cable 18 LCD FPC cable 19 5-mm bezel screws (6) 20 Screw covers (4) 21 Hinge covers (2)

Exploded View of 14.1-Inch Display Assembly

1 Rubber bumpers (2) 2 Bezel 3 LCD panel 4 EMI pan 5 LED card 6 LED cable 7 LCD cable 8 LCD latch 9 Right panel rail 10 4-mm panel rail screws (4) 11 Back cover 12 Bottom FPC bobbin 13 Inverter 14 Top FPC bobbin 15 Hinges (2) 16 Inverter signal cable 17 Left panel rail 18 5-mm hinge screws (2) 19 LCD FPC cable 20 5-mm bezel screws (6) 21 Hinge covers (4) 22 Hinge covers (2)

Display Assembly Removal

1 19-mm screws (4) 2 5-mm screw

To remove the display assembly, see the exploded view of the computer and the exploded view of the base assembly and perform the following steps:

1. Close the computer and place it upside down.
2. Remove the four 19-mm display screws from the bottom of the computer.
   The display screws have a D tooled into the base plastic beside them. Once the screws are removed, the display assembly is very loose.
3. Hold the computer firmly and turn it over.
4. Remove the top half of the cover over the monitor connector.
   This connector is on the back of the computer.
5. Remove the 5-mm screw that was beneath the cover.
6. Unlatch the LCD latch.
7. Slowly open the display assembly so it is at a 90-degree angle to the base.
   This action repositions the hinges so you can remove the bezel later.
8. Gently lift the display assembly so the hinges are free of the base.
   Do not lift the assembly too far up because the LCD FPC cable is still connected to the LVDS board.
   The FPC bobbin and hinge covers lift up with the assembly; the connector cover may lift up with the assembly.
9. Place the display assembly on a support so that the LCD FPC cable is not stressed.
10. Remove the connector cover to expose the end of the LCD FPC cable that connects to the system board.
11. Remove the two 2.5-mm screws securing the LCD FPC cable connector to the LVDS board, and gently lift the connector off of connector C24 on the LVDS board.
    The display assembly is now free from the base. The hinge covers may remain in place.
12. Remove the ground springs from the holes in the system board rails in the base of the computer.
    These fall out easily when the computer is turned upside down.

Bezel and LCD Latch Removal

To remove the bezel and LCD latch, see the exploded view of the 13.3-inch display assembly or 14.1-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Use the dental pick to remove the four screw covers from the bottom of the bezel.
   Take care not to cause cosmetic damage and not to put pressure on the LCD panel.
3. Remove the two rubber bumpers from the top of the bezel.
   Take care not to cause cosmetic damage and not to put pressure on the LCD panel.
4. Remove the six 5-mm screws securing the bezel to the display assembly.
5. Remove the bezel.
   Unfasten the snaps at the bottom of the bezel by applying light pressure on the inside bottom edge of the bezel and pulling the bezel slightly up and toward you. Hold the LCD latch out of the way when removing the top of the bezel.
6. Insert a small, flat blade at the top of the latch and pry the latch up from the retainer in the back cover.
   You may be able to rotate the LCD latch inward to release it from the retainer in the back cover.

13.3-Inch LCD Inverter Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the inverter, see the exploded view of the 13.3-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Disconnect the inverter signal cable from the side-lift ZIF connector CN1 on the left side of the inverter by gently pulling each side of the ZIF connector, and then pulling out the cable.
4. Disconnect the LED cable from connector CN3 on the inverter.
5. Disconnect the LCD cable from connector CN2 on the inverter. (A red dot denotes the top of the LCD cable connector when you are installing the cable.)
6. Remove the inverter.

14.1-Inch LCD Inverter Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the inverter, see the exploded view of the 14.1-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Disconnect the inverter signal cable from the side-lift ZIF connector CN1 on the left side of the inverter by gently pulling each side of the ZIF connector, and then pulling out the cable.
4. Disconnect the wraparound LCD FPC cable on the left side of the inverter. The cable wraps around the inverter and connects to itself.
5. Remove (and save for installation) any Kapton tape securing cables on the right side of the inverter.
6. Lift the inverter partially up to make disconnecting the remaining cables easier.
7. Disconnect the LED cable from connector CN3 on the right side of the inverter.
8. Disconnect the LCD cable from connector CN2 on the right side of the inverter.
9. Remove the inverter.

LCD Interior Assembly Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the LCD interior assembly from the back cover, see the exploded view of the 13.3-inch display assembly or the exploded view of the 14.1-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Remove the left and right hinge covers.

   NOTE: For installation, remember that the foot of the left hinge cover abuts the keyboard and that the infrared lens in the right hinge cover faces outward to receive infrared transmissions.

4. Remove the two 5-mm screws securing the left and right hinges, and then remove the hinges.
   The hinges are not interchangeable, but are color-coded; the nut on the right hinge is gold and, on the left, silver.

   NOTE: Note how the screws go through the panel rails into the hinge so you will install the screws in the right place during installation.

5. Remove the top half of the FPC bobbin by inserting a flat blade into the bobbin and carefully prying the top and bottom apart.
6. If you have not removed the inverter, lift it up slightly (it is still connected to the LCD).
7. Slide the entire LCD interior assembly (which includes the LCD panel, panel rails, EMI pan, and LED card and cable) down to free the panel rails from the retaining tabs in the back cover.
8. Slide the LED card out of the plastic retainer next to the LCD latch.
9. Remove (and save for installation) any Kapton tape securing the LED or LCD cable to the back cover.
10. Remove the entire LCD interior assembly from the back cover.

When installing the LCD interior assembly, place it flat into the back cover, as close to the hinge edge as possible. Then slide it upward to fit it underneath the plastic retaining tabs.

13.3-Inch LCD Panel Rails Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the panel rails, see the exploded view of the 13.3-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Remove the LCD interior assembly.
4. Remove the LED cable from the right panel rail (optional).

   NOTE: Note the routing of the LED cable through the right panel rail for installation.

5. Place the LCD interior assembly face down on a surface that will not damage the LCD.
6. Remove the two 5-mm screws securing the left panel rail.
7. Remove the left panel rail.
   It is stamped with an L (left) for easy identification.
8. Remove the two 5-mm screws securing the right panel rail.
   Note that these screws can be loosened so the panel rail can slide out of the slots; the screws do not have to be completely removed.
9. Remove the right panel rail.
   It is stamped with an R (right) for easy identification.

During installation, the rails must fit snugly against the LCD panel so the interior assembly will fit inside the back cover.

14.1-Inch LCD Panel Rails Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the panel rails, see the exploded view of the 14.1-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Remove the LCD interior assembly.
4. Remove the LED cable from the right panel rail (optional).

   NOTE: Note the routing of the LED cable through the right panel rail for installation.

5. Remove the two 4-mm screws securing the left panel rail to the side of the LCD panel.
6. Remove the left panel rail.
   It is stamped with an L (left) for easy identification.
7. Remove the two 4-mm screws securing the right panel rail to the side of the LCD panel.
8. Remove the right panel rail.
   It is stamped with an R (right) for easy identification.

During installation, the rails must fit snugly against the LCD panel so the interior assembly fits inside the back cover.

13.3-Inch LCD Panel and EMI Pan Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the LCD panel from the EMI pan, see the exploded view of the 13.3-inch display assembly and perform the following steps:

1. Remove the display assembly.
2. Remove the bezel.
3. Remove the LCD interior assembly.
4. Remove the panel rails.
5. Turn the LCD interior assembly face up.
6. If present, remove (and save for installation) any Kapton tape from the lower right corner of the LCD interior assembly.
7. If present, remove (and save for installation) any Kapton tape from the center left side of the LCD interior assembly.
8. Remove (and save for installation) the EMI tape from the side and the bottom 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 curls and sticks to itself.

9. Remove (and save for installation) any other Kapton or EMI tape securing the LCD cable to the EMI pan.
10. Lift the LCD panel partially out of the EMI pan. The LCD FPC cable is still attached to the LCD panel.
11. Remove (and save for installation) the Kapton tape securing the LCD FPC cable to the LCD panel.
12. Gently pull the LCD FPC cable out of the connector on the LCD panel.
13. Lift the LCD panel out of the EMI pan. The LCD FPC cable remains taped to the EMI pan.

14.1-Inch LCD Panel and EMI Pan Removal

CAUTION: The following procedure should be performed only by depot repair technicians.

To remove the LCD panel from the EMI pan, see the exploded view of the 14.1-inch display assembly and perform the following 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 corner 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 curls and sticks to itself.

6. Remove (and save for installation) the EMI tape from the side and the bottom 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.