JVC KS-AX4500 Service Manual page 5

Removal of main parts
CAUTION: If electricity is connected during disassembly,
it must be a no load current. If it is load
current, be sure to attach a heat sink to the
power-amp IC. This will be damaged if the
above precautions are not followed, as it
does not have a sub heat sink attached to it.
Removing the bottom cover (see Fig. 1)
1. From the bottom side of the main unit, remove the 4
screws A retaining the bottom cover.
2. Then remove the 6 screws B retaining the bottom
cover.
3. Remove the bottom cover.
Removing the MAIN PCB
1. Remove the bottom cover from the main unit.
2. Loosen and remove the 2 screws C retaining the top
plate on the main unit. (Stoppers are attached to the
backs of the C screws so that they cannot be
removed easily.)
3. Remove the 4 volume knobs on top of the control
panel. If it cannot be pulled out easily, insert a rope
or wire between the base of the volume knob and the
control panel so that the volume knob is raised a little
above the surface and then remove it.
(Be careful when inserting a lever etc. not to
scratch the surface of the control panel).
4. Remove the 4 screws D retaining the control panel.
Then detach the control panel and the switch knobs.
A
(see Fig. 2 to 8)
C
D
B
B
Fig. 1
Fig. 2
Volume knob
Switch knob
Fig. 3
Rope or wire
Volume knob
(Side view)
Fig. 4
KS-AX4500
Bottom cover
A
Top panel
C
D
Control panel
Control panel
1-5