Dial Lamp Assembly Removal; Dial Lamp Assembly Replacement; Meter Lamp Assembly Replacement; Volume Control Removal - Bose 550 Service Manual

DISASSEMBLY/ASSEMBLY PROCEDURES

11. Dial Lamp Assembly Removal

11.1 Perform procedure 1.
11.2 Carefully slide the dial lamp PC board
to the left (with the unit facing you) and lift
the board off of the clips.
11.3 Lift the board up towards the top of
the unit and replace any defective bulbs.

12. Dial Lamp Assembly Replacement

12.1 Position the dial lamp PC board over
the locking clips.
12.2 While aligning the clips with the holes
in the PC board, carefully slide the board to
the right to secure it to the lamp housing.
13. Selector Lamp Assembly Removal
13.1 Perform procedure 7.
13.2 Remove the screw (L-1) securing the
PC board to the front housing.
13.3 Unclip the ends of the board and
remove it from the housing.
13.4 Replace any bulbs that are defective.
14. Selector Lamp Assembly Replace-
ment
14.1 Place the PC board into the housing
and clip it into place.
14.2 Secure the board to the housing.
15. Meter Lamp Assembly Removal
15.1 Perform procedure 1.
15.2 Remove the screw (L-1) securing the
meter lamp PC board to the housing.
15.3 Cut any tie wraps needed and re-
move the PC board from the housing.
15.4 Replace any defective bulbs.

16. Meter Lamp Assembly Replacement

16.1 Place the PC board into the housing
and secure it to the housing.
16.2 Replace any tie wraps that had been
removed.

17. Volume Control Removal

17.1 Perform procedure 5.
17.2 Remove the nut securing the volume
control to the front housing and remove the
control from the rear of the housing.
18. Volume Control Replacement
18.1 Place the volume control through the
rear of the front housing.
18.2 Secure the volume control to the
front housing.
19. Power Switch Removal
19.1 Perform procedure 5.
19.2 Remove the two screws securing the
power switch to the front assembly.
19.3 Remove the power switch through
the bottom of the unit.
20. Power Switch Replacement
20.1 Place the power switch into the front
assembly.
20.2 Secure the power switch to the front
assembly.
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