Bose FREESPACE BUSINESS Руководство по эксплуатации - Страница 15
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4. Junction Box Cover Replacement
A. Position the junction box cover (8) over the 4
screws (9) still secured to the junction box (7).
Lower the cover into place.
B. Slide the cover until all 4 screws are engaged
with the narrow slot in each screw hole. Secure
the cover to the junction box with the 4 screws.
5. Panel Assembly Removal
A. Remove the mounting hardware (Procedure
1) and the junction box cover (Procedure 3).
NOTE: Refer to Figure 4 for Procedures 5 and
6 unless otherwise specified.
B. Remove 14 screws (2) which secure the panel
assembly (1) to the unit.
NOTE: If the panel assembly does not need to
be completely removed,then it may not be
necessary to unhook the connectors as directed
in step C.
C. Unhook connectors J303 (woofer output) and
J101 from the Main PCB Assembly (Figure 6,
Item 13) and connector J502 from the Tone
Control PCB Assembly (24).
D. Carefully lift the panel assembly away from
the unit.
6. Panel Assembly Replacement
A. Lower the panel assembly (1) into position.
B. Plug in connectors J303 (woofer output) and
J101 to the Main PCB Assembly (Figure 6,Item
13) and connector J502 to the Tone Control PCB
Assembly (24) if they were previously
disconnected.
C. Secure the panel assembly to the unit with 14
screws (2).
D. If no further troubleshooting is required,re-
install the junction box cover (Procedure 4) and
the mounting hardware (Procedure 2).
7. Tone Control PCB Assembly Removal
NOTE: Refer to Figure 4 for Procedures 7 and
8 unless otherwise specified.
A. Remove the mounting hardware (Procedure
1), junction box cover (Procedure 3),and panel
assembly (Procedure 5).
B. Remove the 2 control knobs (21) using either
your fingers or a flat blade screwdriver.
C. Remove the 2 3/8" hex nuts (22) and washers
(23) which secure the PCB (24) to the unit.
D. Push the control knob shafts through the holes
in the unit and carefully lift the PCB away from
the unit.
8. Tone Control PCB Assembly Replacement
A. Slide the control knob shafts through the holes
in the unit. Make sure that the PCB is solder side
up.
B. Secure the PCB (24) to the unit with 2 3/8"
hex nuts (22) and washers (23).
C. Replace the 2 control knobs (21) by pushing in
gently towards the unit. The knobs are keyed and
will only fit one way.
D. If no further troubleshooting is required,re-
install the panel assembly (Procedure 6) ,the
junction box cover (Procedure 4) ,and the
mounting hardware (Procedure 2).
9. Woofer Removal
NOTE: Refer to Figure 4 for Procedures 9 and
10 unless otherwise specified.
A. Remove the mounting hardware (Procedure
1),junction box cover (Procedure 3),and the
panel assembly (Procedure 5).
B. Remove the 6 screws (2) which secure the
woofer (19) to the unit, and lift the woofer
carefully away from the unit.
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