JVC RX-8012PSL, Service Manual

Page: 8 / 72

RX-8012PSL
1-8
Prior to performing the following procedure, remove
the top cover and front panel assembly.
Pull out the volume knob on the front side of the front
panel and remove the nut attaching the system
control board.
Remove the two screws A attaching the power
switch board on the front panel assembly(inner side).
Remove the two screws B attaching the switch
board on the front panel assembly(inner side).
Remove the cords from the three hooks a.
Remove the eight screws C attaching the system
control board from the inner side of the front panel
assembly.
Release the four joints on the back of the front panel
by pushing the joint tabs inward. Remove the
operation switch panel toward the front.
Disconnect the harness from the connector CN420
and CN422 on the system control board.
Release the two hooks b attaching the system
1.
2.
3.
4.
5.
6.
7.
8.
Removing the system control board,
power switch board and switch board
(See Fig.1 to 3)
Matters that require attention during
replacement of IC400
In case where there is a resistance array:
Both onetime IC and mask IC can be used
In case where there is no resistance array:
Only mask IC can be used
<Front panel assembly>
Fig.1
Fig.2
Fig.3
Front panel assembly
Front panel assembly(inner side)
Nut
Volume knob
System control board
Power switch
board
C C
CN422
A
Joint
Joint Joint
Joint
Hook b
Hook b
Operation switch panel
B
CN420
Switch board
C
Hook a
Cords
Resistance array