Disassembly/Assembly - Bose AV28 Manual

1. Top Cover Removal
1.1 Remove the six screws (28) that secure
the top cover (7) to the base (9).
1.2 Release the catch at the right rear corner
of the top cover. Lift off the top cover.
2. Top Cover Replacement
2.1 Align the top cover (7) with the base (9)
and press down at the right rear corner to
secure the catch.
2.2 Replace the six screws (28) that secure
the top cover to the base.
3. DVD/CD Assembly Removal
3.1 Perform procedure 1.
3.2 Pressing outward on the four tabs located
on the base (9) at the bottom corners of the
DVD/CD bracket (15), lift out the DVD/CD
assembly (1).
3.3 Remove the two connectors from the
DVD/CD assembly.
3.4 Remove the four screws (22) that secure
the DVD bracket (15) to the DVD assembly.
4. DVD/CD Assembly Replacement
4.1 Align the DVD bracket (15) with the DVD
assembly (1). Replace the four screws (22)
that secure the DVD bracket to the DVD
assembly. Refer to figure 3 for DVD bracket
orientation.
4.2 Connect the two connectors to the DVD/
CD assembly.
Note: Make sure the ribbon cable connector
key is on the top when inserting the connec-
tor. Line up the connector to the pins on the
receptacle and gently push in. Do not force
the connector or push on the connector at an
angle. Damage to the pins may occur.

Disassembly/Assembly

(Refer to Figure 3)
5. Tuner PCB Removal
6. Tuner PCB Replacement
29
4.3 With the DVD/CD assembly (1) label side
up, align the tabs on the DVD/CD bracket
(15) with the four tabs located in the base (9).
Press downward on the corners of the DVD/
CD assembly until all four tabs snap into place.
5.1 Perform procedure 1.
5.2 Grasp the front edge of the tuner PCB (3)
and lift up until it is at a 45
5.3 Grasp the tuner PCB bracket support
(21), which is located under the tuner PCB,
and pull it to the left slightly to clear the
headphone jack PCB. Then pull up and
forward on the tuner PCB bracket support to
release the tuner PCB.
5.4 Remove the ribbon cable from connector
J103.
6.1 Attach the ribbon connector to J103.
6.2 Align the posts on the tuner PCB support
bracket (21) with the three locator holes in
the base (9).
6.3 Holding the tuner PCB (3) at a 45
align the two tabs located at the rear of the
tuner PCB with the two cutouts located at the
rear of the base.
6.4 Lower the front of the tuner PCB until it
rests on the tuner PCB support bracket.
0
angle.
0
angle,