Bose 302 A Panduan Servis - Halaman 4

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Halaman Cetak

DISASSEMBLY/ASSEMBLY PROCEDURES

1. Grille and Baffle Removal

1.1 Grasp the edge of the grill (10) and pull it

off.

1.2 Remove the six screws (17) that secure

the baffle to the cabinet and then pull off the

baffle.

2. Grille and Baffle Replacement

2.1 To prevent air leaks, apply a new woofer

mount gasket (13). To prevent wire buzzes,

insert the wires into the cabinet's wire chan-

nel. Line up the baffle so that the baffle's

woofer mount fits into the groove in the

cabinet. Replace the six screws (17) that

secure the baffle to the cabinet.

2.2 Align the grille (10) with the cabinet so

that the logo (14) is over the Twiddler

drivers (2). Press the grille into place.

3. Twiddler Removal.

3.1 Perform procedure 1.1 and then remove

the four screws (16) that secure the Twiddler

driver (2) to the cabinet.

3.2 Lift out the Twiddler driver, make a note of

the wiring configuration and cut the wires as

close as possible to the wire terminal.

4. Twiddler Replacement

4.1 Referring to the note taken in 3.2, attach

the wires to the Twiddler driver (2).

4.2 Line up the Twiddler driver in the cabinet

and replace the four screws (16) that secure it

in place.

5. Woofer Removal

5.1 Perform procedure 1.

5.2 Make a note of the wiring configuration

and then cut the wires as close as possible to

the woofer's (1) wire terminal.

(Refer to Figure 4)

5.3 Remove the four screws (16) that secure

the woofer to the baffle. Lift out the woofer.

6. Woofer Replacement

6.1 To prevent air leaks, use a new woofer

gasket (15) and woofer mount gasket (13).

Line up the woofer (1) in the baffle so that the

wire terminal is facing toward the Twiddler

drivers (2). Replace the four screws (16) that

secure the woofer to the baffle.

6.2 Referring to the note taken in procedure

5.2, attach the wires to the woofer.

6.3 Place the foam tape woofer mount gasket

(13) around the edge of the woofer mount

where it contacts the cabinet.

7. RLC Circuit Component Removal

7.1 Perform procedure 1.

7.2 Remove the capacitor (5), resistor (6) or

inductor (4) by cutting its leads. Remove the

screw (16) that secures the inductor to the

cabinet and cut the inductor's leads.

8. RLC Circuit Component Replacement

8.1 Replace the capacitor (5), resistor (6) or

inductor (4) by soldering its leads to the lug

from which it was removed. Replace the

screw (16) that secures the inductor to the

cabinet. Refer to Figures 1 and 3.

9. Crossover Capacitor Removal

9.1 Perform procedure 1.

9.2 Remove the four screws (16) that secure

the Twiddler driver panel (11) to the baffle.

Pry off the panel.

9.3 Cut the wires as close as possible to the

terminals of the capacitor (3).