Bose L-Bracket 203 Service-Handbuch - Seite 4

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DISASSEMBLY/ASSEMBLY PROCEDURES

Note: Refer to Figure 6 for the following

procedures.

1. Grille removal

1.1 Using your fingers, grasp the grille (1)

edge nearest the port slot and gently pull

the grille away from the cabinet until it

comes free.

1.2 Grasp the opposite edge of the grille

and gently pull it away from the cabinet

until it comes free as well.

2. Grille replacement

2.1 Orient the grille (1) so that the Bose

logo (14) is aligned with the print on the

rear of the cabinet.

2.2 Align the two grille posts on the curved

grille edge with the cabinet post holes and

press the grille edge in place.

2.3 Align the two grille posts at the

opposite grille edge with the grille socket

grommets (4) and press the grille in place.

The grille should be neat and flush with the

cabinet.

3. Driver removal

3.1 Remove the grille (1) using

procedure 1.

3.2 Using a phillips-head screwdriver,

remove the three screws (2) that secure the

driver (3) to the speaker cabinet.

3.3 Using your fingers, grasp the plastic

basket of the driver and pull gently. The

driver should come free.

3.4 Note the driver wiring color code, and

cut the wires as close to the terminals as

possible.

4. Driver replacement

4.1 Observing polarity, solder the wires

from the crossover assembly (5) to the

driver (3) terminals.

4.2 Orient the driver correctly into the

cabinet and secure it using the screws (2)

removed in procedure 3.2.

4.3 Replace the grille (1) using

procedure 2.

5. Crossover Assembly removal

5.1 Remove the grille (1) and angled

driver (3) using procedure 3.

5.2 Remove the batting material and retain

it for replacement later.

5.3 Using a long shaft phillips-head

screwdriver, remove the four screws that

secure the crossover assembly (5) to the

interior of the speaker cabinet.

5.4 Unsolder the driver and barrier

connector (10) wires from the crossover

assembly.

Note: Refer to Figure 3. Model 203™

Loudspeaker driver wiring diagram, for

the following procedure.

6. Crossover Assembly replacement

6.1 Solder the driver (3) and barrier

connector (10) wires to the appropriate

locations on the crossover assembly (5).

6.2 Secure the crossover assembly to the

interior of the speaker cabinet in the

previous location using the four screws

removed in procedure 5.3.

6.3 Replace the batting material removed

in procedure 5.2.

6.4 Replace the driver and grille (1) using

procedure 4.