Bose AM-30P Manuale di servizio - Pagina 27

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DISASSEMBLY/ASSEMBLY PROCEDURES

Note: Numbers in parentheses correspond

to the callouts in the Figures referred to in the

following procedures. Refer to Figures 14 and

16.

8. Transformer Replacement

8.1 Place the transformer (14) into the

recess of the base plate (4). Make sure the

transformer is positioned so that the pri-

mary wires (red, white, brown, orange,

black) that connect to the J7 connector are

facing the PCB.

8.2 Connect the transformer's 5-pin cable

to the amplifier PCB's J1 connector. Con-

nect the woofer harness cable (9) back into

the amplifier PCB's J3 connector.

8.3 Secure the adapter bracket to the base

plate and redress any wire harness as

needed.

8.4 Perform procedure 2.

9. Woofer Removal

9.1 Perform procedure 1.

9.2 Disconnect the woofer harness cable

(9) from the amplifier PCB's J3 connector.

9.3 Remove eight black screws (17) that

secure the module assembly (18) to the

enclosure. Lift the module assembly away

from the enclosure.

9.4 Remove four screws (19) from the

woofer (20) under repair.

9.5 Lift the woofer up far enough to expose

the wires connected to the woofer's termi-

nals.

9.6 Cut the wires as close to the terminals

as possible.

9.7 Remove the woofer from the enclo-

sure.

10. Woofer Replacement

10.1 Strip the ends of the module's wiring

harness (9). Connect the yellow wire to the

replacement woofer's (20) + positive termi-

nal and the green wire to the - negative

terminal. Refer to Figure 18.

10.2 Line up the woofer's gasket (21) over

the woofer's baffle panel hole.

10.3 Place the woofer over the gasket.

Make sure it is seated evenly over the

gasket and baffle hole.

10.4 Secure the woofer to the baffle.

10.5 Secure the module assembly to the

enclosure.

10.6 Perform procedure 2.

Figure 18. Woofer Harness Hookup

Woofer +

Yellow

Woofer -

Green

+ -