Disassembly. Motorola C330 - 2, C350 Series

Disassembly C350 Series

Disassembly

This section describes how to disassemble a C350 Series telephone. Tools and

equipment used are listed in Table 1, preceding.

G

Many of the integrated devices used in this equipment are vulnerable to damage from electrostatic discharge (ESD). Ensure adequate static protection is in place when handling, shipping, and servicing the internal components of this equipment.

G

Avoid stressing the plastic in any way to avoid damage to either the plastic or internal components.

Removing and Replacing the Rear Housing Cover

1.

Ensure the phone is turned off.

2.

Press down on the rear housing cover latch on the top end of the phone, gently lift the rear housing cover away from the latch and slide the rear housing cover in the direction of the arrow, and lift the cover away from the phone

(see Figure 4).

20 January 23, 2003 6809456A82

Level 1 and 2 Service Manual

LATCH

REAR HOUSING COVER

Disassembly

REAR HOUSING COVER

FRONT HOUSING

021023

021023o

Figure 4. Removing the Rear housing Cover

3.

To replace, align the rear housing cover to the front housing

4.

Gently press the rear housing cover into position onto the front housing until the rear housing cover snaps into place.

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Disassembly C350 Series

Battery Removal and Replacement

Battery date codes are explained in the Battery Date Code section on page 13

Before handling the battery, please observe the battery cautions listed below.

G Do not handle batteries with wet or sweaty hands.

Do not short the positive or negative terminals

Non conductive tweezers or grasping tools are to be used for battery connector manipulation, assembly, and disassembly.

1.

Remove the rear housing, as described in the procedures.

2.

Slide the battery in the direction of the arrow as shown in Figure 5A.

3.

Lift the top of the battery near the alert speaker out of the battery compartment as shown in Figure 5B.

A

B

22

021025o

Figure 5. Removing and Replacing the Battery

E There is a danger of explosion if the Lithium ion battery is replaced incorrectly.

Replace only with the same type of battery or equivalent as recommended by the battery manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

4.

To replace, insert the bottom of the battery into the battery compartment with contacts facing downward as shown in Figure 5B.

5.

Press the top of the battery into the battery compartment.

6.

Replace the rear housing cover as described in the procedures.

January 23, 2003 6809456A82

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Subscriber Identity Module (SIM)

1.

Remove the rear housing cover as described in the procedures.

2.

Lift the metal SIM holder as indicated in Figure 6 to release the SIM.

3.

Remove the SIM by sliding it in the direction of the arrow as shown in Figure 6.

SIM

SIM HOLDER

Figure 6. Removing the SIM

4.

To replace, carefully slide the SIM into position in its socket.

5.

Lower the SIM holder into position over the SIM in the phone.

6.

Replace the rear housing cover as described in the procedures.

020188o

6809456A82 January 23, 2003 23

Disassembly C350 Series

SIM Holder Removal and Replacement

1.

Remove the rear housing cover and SIM as described in the procedures.

2.

Turn the endo housing over so the antenna and SIM holder are facing up.

3.

Gently press down on the SIM holder.

The SIM holder should easily snap out of the endo housing.

DISASSEMBLY

TOOL

A

24

ENDO HOUSING

ENDO HOUSING

SIM HOLDER

SIM HOLDER

B

021029o

Figure 7. SIM Holder Removal and Replacement

4.

To replace, turn the endo housing over so that the interior of the housing is facing up.

5.

Insert the SIM holder into the endo housing with the circuit board contacts facing up and the SIM contacts facing down.

6.

Gently press the SIM holder until it snaps into position in the endo housing.

7.

Replace the SIM and rear housing cover as described in the procedures.

January 23, 2003 6809456A82

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Endo Housing

G Other C330 series phone housings appear differently. The endo housing removal procedure is essentially the same for each type of housing.

1.

Remove the rear housing cover, and SIM as described in the procedures.

2.

Insert the plastic disassembly tool between the front housing and the endo housing to release the endo housing catches along the sides of the front housing

as shown in Figure 8.

3.

Lift the endo housing out of the front housing.

DISASSEMBLY

TOOL

ENDO HOUSING

FRONT HOUSING

ENDO HOUSING

6809456A82

FRONT HOUSING

Figure 8. Removing the Endo Housing

021027

021027o

4.

To replace, align the endo housing with the front housing.

5.

Carefully and gently lower the endo housing into the front housing until the catches along the sides of the front housing snap into position.

January 23, 2003 25

Disassembly C350 Series

Removing and Replacing the Front Endo Housing

1.

Remove the rear housing cover, SIM, battery, endo housing as described in the procedures.

2.

Using the Torx driver and a T-6 bit, remove the 6 screws shown in Figure 9A.

Set the screws aside for reuse.

3.

Using the disassembly tool, release the latches along the two sides and on the

end of the phone as shown in Figure 9.

4.

Carefully separate the rear endo housing from the front endo housing.

LATCH

LATCH

FRONT ENDO HOUSING

26

REAR ENDO HOUSING

021028o

Figure 9. Removing the Front Endo Housing

5.

To replace, align the front endo housing to the rear endo housing.

6.

Carefully and gently press the front and rear endo housing together until the two parts snap into position.

7.

Insert and tighten the 6 screws in the sequence indicated by the arrows in

Figure 9A to a torque setting of 2.0 kgf. Do not overtighten.

8.

Replace the endo housing, battery, SIM, and rear housing covers as described in the procedures.

January 23, 2003 6809456A82

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Display Assembly

1.

Remove the rear housing cover, SIM, endo assembly, front endo housing, and battery, as described in the procedures.

2.

Use the disassembly tool to carefully release the 4 metal display latches on

each side of the display assembly as shown in Figure 10.

3.

Carefully lift the display assembly away from the transceiver board as shown

in Figure 10.

DISPLAY ASSEMBLY

DISPLAY ASSEMBLY LATCH

DISASSEMBLY

TOOL

Figure 10. Removing the Display Assembly

021030o

4.

To replace, align the display assembly with the printed circuit board.

5.

Gently press the display assembly latches into position while holding the display assembly in position.

6.

Replace the front endo housing, endo assembly, SIM, battery, rear housing cover as described in the procedures.

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Disassembly C350 Series

Removing and Replacing the Microphone

1.

Remove the rear housing cover, SIM, endo assembly, front endo assembly, and display assembly as described in the procedures.

2.

Turn the display assembly over to reveal the microphone.

3.

Use the disassembly tool to gently pry the microphone out of its socket.as shown

in Figure 11.

4.

Use the tweezers, carefully lift the microphone up and away from the display assembly board.

28

MICROPHONE

TRANSCEIVER BOARD

TWEEZERS

021031o

Figure 11. Removing the Microphone

5.

To replace, use the tweezers to place the microphone into its socket on the plastic section that holds the display assembly. Ensure the microphone elastomer faces the circuit board contacts when reattaching the printed circuit board.

6.

Replace the display assembly, endo front housing, antenna, endo assembly,

SIM, and rear housing cover as described in the procedures.

January 23, 2003 6809456A82

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Transceiver Board

1.

Remove the rear housing cover, SIM, endo assembly, antenna, front endo housing, display assembly and battery, as described in the procedures.

G

This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage.

2.

Use the disassembly tool to release the display assembly latches that secure the display assembly to the transceiver board.

3.

Lift the transceiver board away from the display assembly as shown in Figure

12.

TRANSCEIVER BOARD

DISASSEMBLY TOOL

TRANSCEIVER BOARD

DISPLAY ASSEMBLY LATCHES

6809456A82

DISPLAY ASSEMBLY

Figure 12. Removing the Transceiver Board

4.

To replace, align the transceiver board with the display assembly.

5.

Carefully lower the transceiver board onto the front housing.

6.

Secure the 4 display assembly latches to the transceiver board.

020208o

January 23, 2003 29

Disassembly C350 Series

7.

Replace the display assembly, battery, front endo housing, endo assembly,

SIM, and rear housing cover, as described in the procedures.

Removing and Replacing the Rear Speaker

1.

Remove the rear housing cover, SIM, endo assembly, and front endo housing as described in the procedures.

2.

Use the metal tweezers to gently release the 3 clips that secure the speaker.

3.

Carefully pry the rear speaker out of its socket in the rear endo housing as

shown in Figure 13. Avoid damage to the speaker clips.

CLIP

REAR ENDO HOUSING

30

METAL TWEEZERS

REAR SPEAKER

Figure 13. Removing the Rear Speaker

021032o

4.

To replace, carefully press the speaker into position.

5.

Ensure the speaker elastomer is seated correctly with the red bar facing up.

6.

Replace the front endo housing, endo assembly, battery, SIM, and rear housing as described in the procedures.

1

January 23, 2003 6809456A82

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Keypad

1.

Remove the rear housing cover, SIM, and endo assembly as described in the procedures.

2.

Use the disassembly tool to lift the keypad up and away from the front housing

as shown in Figure 14.

FRONT HOUSING

TWEEZERS

KEYPAD

021033o

Figure 14. Removing the Keypad

3.

To replace, insert the keypad into the front housing. Ensure the keys align properly with the openings and the keypad is fully seated in the front housing.

4.

Replace the endo assembly, SIM, battery, and rear housing cover, as described in the procedures.

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Disassembly C350 Series

Removing and Replacing the Front Speaker

1.

Remove the rear housing cover, SIM, endo assembly, front endo housing, and battery, as described in the procedures.

2.

Using the flat end of the disassembly tool to gently pry the speaker out of its

socket as shown in Figure 15.

3.

Be careful not to damage the speaker elastomer while removing the speaker from the front endo.

4.

Lift the speaker from the front housing.

SPEAKER

FRONT ENDO

DISASSEMBLY TOOL

020195o

Figure 15. Removing the Front Speaker

5.

To replace, align the speaker to its socket.

6.

Gently press the speaker into place. Be careful not to damage the speaker elastomer when replacing the speaker.

7.

Ensure the speaker elastomer is seated correctly with the red bar facing up.

8.

Replace the front endo housing, endo assembly, SIM, and rear housing cover as described in the procedures.

32 January 23, 2003 6809456A82