JVC Mx-GT80 Service Manual page 14

MX-GT80/MX-GT90
Removing the preset / tuning switch
board (See Fig.29 and 30)
Prior to performing the following procedure, remove
the display system control board.
1. Pull out the preset knob on the front panel.
2. Remove the five screws Q attaching the preset /
tuning switch board.
3. If necessary, unsolder FW901 on the preset / tuning
switch board.
Removing the operation switch board
Prior to performing the following procedure, remove
the display system control board and the preset /
tuning switch board.
1. Pull out the volume knob on the front panel and
remove the nut. Pull out the surround mode knob
and the surround woofer level knob toward the front.
2. Remove the twelve screws R attaching the
operation switch board.
3. Remove the screw R' attaching the earth terminal
extending from the switch board.
4. Release each tab of the seven joints g retaining the
operation switch board.
1-14
(See Fig.30 and 31)
Preset / tuning switch board
Q
Q
Preset knob
Volume knob
Joints g
R
Joint g
R
Joint g
R
R
Joints g
Fig.29
Surround mode knob
Surround woofer
level knob
Nut
Fig.30
R
Operation
switch board
Joint g
R'
R
R
Fig.31