JVC TH-M55 Service Manual page 27

3.3 Subwoofer section
3.3.1 Removing the amplifier assembly
(See Figs.1 to 3)
(1) From the back side of the speaker main body, remove the
four screws A attaching the heat sink cover and then re-
move the heat sink cover. (See Fig.1.)
(2) Remove the nine screws B attaching the amplifier assem-
bly. (See Fig.2.)
(3) Move the amplifier assembly backward and disconnect the
wire from the connector
board. (See Fig.3.)
3.3.2 Removing the rear panel
(See Figs.1 and 4)
(1) From the back side of the speaker main body, remove the
four screws A attaching the heat sink cover and then re-
move the heat sink cover. (See Fig.1.)
Reference:
If the amplifier assembly was removed from the main
body, this step (1) is unnecessary.
(2) Remove the four screws C, twelve screws D and screw E
attaching the rear panel. (See Fig.4.)
Rear panel
CN402 on the speaker terminal
A
Heat sink cover
A
Fig.1
B
B
Fig.2
Amplifier assembly Speaker main body
Speaker terminal board
CN402
Fig.3
E
C
D
C
D
C
Fig.4
Amplifier assembly
B
B
Rear panel
D
C
D
(No.MB075)1-27