Disassembly/Assembly Procedures; Main Assembly Procedures - Bose FreeSpace 6 Manual

DISASSEMBLY/ASSEMBLY PROCEDURES

Main Assembly Procedures

Note: Certain parts will be referred to in
these procedures. The numbers in paren-
theses represent individual parts called out
in Figure 1. The callout numbers corre-
spond to those on the part lists.
1. Chassis Cover/Top Cover Removal
1.1 Place the amplifier flat on the work-
bench with the Bose
corner.
1.2 Detach the chassis cover (1) by holding
both corners and pulling upward. Once the
cover is loosened, slide the bottom tabs out
and away from the unit.
1.3 Use a phillips-head screwdriver to
remove two silver screws (2) securing the
chassis top cover (3).
1.4 Gently lift the right side of the chassis
top cover up at a 45° angle and pull to the
right and up. This is done to clear the left
screw mount away from the Amp PCB (8)
when the cover is lifted off.
IMPORTANT: Be careful not to pull the
three cables connected to the Amp PCB (8)
assembly. They must be disconnected
before final removal of the chassis-top
cover.
2. Chassis Cover/Top Cover Replacement
2.1 Place the chassis-top cover (3) over the
chassis base (4). Align the cover so that
the left-side screw mount of the chassis
base will slide between the IO1 PCB (8)
and the inside surface of the chassis-top
cover. Otherwise there will be difficulty
securing the cover.
®
logo in the upper-left
2.2 Align the screw holes of the top cover
with the screw mounts located on the base.
Also align the four metal tabs on the base
with the tab slots on the cover. There are
also six metal tabs located on the bottom
edges of the cover that must be aligned
when the cover is finally seated.
2.3 Slide the cover down over the base
until the screw holes are aligned and all tab
slots are locked into place.
2.4 Secure the chassis top cover (3) by
tightening two silver screws (2) with a
phillips-head screwdriver.
2.5 Position the three bottom tabs on the
chassis cover into the slots located in the
chassis base. Press the chassis cover
down over the chasis-top cover to secure it.
3. Amplifier PCB Removal (Chassis Base)
3.1 Remove the Chassis Cover/ Top Cover
(Procedure 1) .
3.2 Separate the chassis-top cover from
the base by disconnecting both two-pin
cables from the Amp PCB's (8) P3A and
P3B connectors. Disconnect the eight-pin
cable from the Amp PCB's P2A connector.
3.3 Disconnect the following cables:
• Disconnect the transformer's five-pin
primary cable from the Amp PCB's P7
connector.
• Disconnect the transformer's five-pin
primary cable from the Amp PCB's P4
connector.
• Disconnect the main power two-pin
primary cable from the Amp PCB's P4
connector.
IMPORTANT: Be sure to notice the orien-
tation of the transformer's five-pin primary
cable. Pin 1 is keyed to pin 1 of Amp PCB
connector P6 (or P7 depending upon the
unit's applicable voltage rating).
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