1800-V Disassembly/Assembly Procedures - Bose 1800-V Manual

1800-V DISASSEMBLY/ASSEMBLY PROCEDURES

NOTE: Refer to the figures referenced in each
procedure for an exploded view. Numbers in
parentheses represent individual parts in the
figures referenced.
IMPORTANT:
It's advisable to mark or note
wiring connectivity before any disassembly
begins. For further assistance consult the Wiring
Diagrams on Pages 66 and 67.
1. Cover Removal
1.1 Use a phillips-head screwdriver to remove
nine screws (3) from the back and sides of the
chassis cover (1). Refer to Figure 9. Do Not
remove the two screws at each top front side of
the cover. These screws attach the nylon
standoffs on the inside of the cover. Refer to
Figure 12.
1.2 Lift the back of the cover up, while moving it
forward (front panel) from the chassis (2). The
front lip of the cover is hinged on the two front
angle pieces of the chassis. Refer to Figure 12.
2. Cover Replacement
2.1 Align the cover (1) so its front angle fits over
the chassis's (2) two front angle hinges. Refer to
Figures 9 and 12. The cover's nylon standoffs
should be behind both of the chassis's angle
hinges.
2.2 Secure the cover to the chassis by tightening
nine screws (3) with a phillips-head screwdriver.
Refer to Figure 9.
3. Display Board Removal
NOTE: Refer to Figure 12 for this Procedure.
3.1 Remove the cover (1), see Procedure 1.
3.2 Disconnect the connectors from transformer
(4) terminals 6-11. This will give you access to
the screw on the Display Board (5), which is next
to the transformer.
1
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Cover
1800 SERIES V PROFESSIONAL AMPLIFIER
FOR BRIDGED
OPERATIONS
D.O.M.
CONSULT
BOSE CORPORATION, FRAMINGHAM, MA 01701-9168 MADE IN U.S.A.
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Figure 9. Cover's Attaching Hardware
3.3 Remove two screws (20) on the solder side
of the Display Board (5) with a phillips-head
screwdriver.
3.4 Move the board back from the chassis's front
panel and disconnect the wiring harness from the
Display Board's J1 connector.
3.5 Lift the board out from the chassis.
4. Display Board Replacement.
NOTE: Refer to Figure 12 for this procedure.
4.1 Connect the wiring harness from the I/O
Board (6) to the Display Board's (5) J1
connector.
4.2 Secure the Display Board to the Chassis's
standoffs by tightening two screws (20) with a
phillips-head screwdriver.
4.3 Connect the Power Supply cables back to
transformer (4) terminals 6-11.
4.4 Return the cover (1) to the chassis (2), see
Procedure 2.
5. Regulator Board Removal
NOTE: Refer to Figures 11 and 12 for this
procedure.
5.1 Remove the cover (1), see Procedure 1.
5.2 To have better access to the Regulator Board
(8) disconnect the following cables:
Disconnect the cables from the Power Supply
Board (7) terminals, WL1-WL3 and WL5-WL7.
These terminals are directly over the Regulator
Board.
Disconnect the cables from the terminals of the
Line Filter (10) that are next to the Regulator
Board. See Figure 12 for 100V/120V units and
Figure 11 for 240V units for their location.
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BRIDGED
1400 W 8
700 W 4 700 W 4
CAUTION
AVIS
- CH 2 + + CH 1 -
WARNING
SPEAKER OUTPUTS
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CLASS 1 WIRING SHALL BE USED
20
(Procedure 5 Continued)
Do Not Remove
Attaches Nylon
Standoff
100V AC
50-60Hz
2 Chassis
1800 W
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