Bose 300PM Instrukcja serwisowa - Strona 5

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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 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 grille socket

grommets (4) and press the grille edge in

place.

2.3 Align the two grille posts at the

opposite grille edge with the cabinet grille

socket grommets 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 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 (9) 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 driver (3) located behind

the curved portion of the grille (1) using

procedure 3. Do not cut the wires to the

driver.

5.2 Remove the batting behind the driver

and retain it to reinstall later.

5.3 Using a long shaft phillips-head

screwdriver, remove the four screws (8)

that secure the crossover assembly (9) to

the binding post connector (10).

5.4 Gently pull the crossover assembly

straight off of the metal tabs on the binding

post connector until it comes free. You can

now slide the crossover assembly out

through the driver opening.

5.5 Unsolder the wires from the crossover

assembly.

6. Crossover Assembly replacement

6.1 Solder the driver (3) wires to the

appropriate locations on the crossover

assembly (9).

6.2 Insert the crossover assembly through

the driver opening.

6.3 Orient the crossover assembly so that

the tabs on the binding post connector (10)

and the receptacles on the crossover

assembly are aligned.