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astening
BA
P4x 10
scan
ttom.
326x8
(LED
2 (two)
located
k and
CONNECTOR
PANEL
C1) Remove 4 (four) +B3 x 6 screws and
4 (four) lock washers {3 mm dia.).
t
CIRCUIT
BOARD
@ Remove 2 (two) +PSW3 x 6 screws,
MX-P21
© Remove 2 (two) +P3 x 8 screws and DDC bracket.
(4) Remove 22 (twentytwo)
+P3 x 4 screws and case lid.
© Remove 3 (three) +P3 x 4 screws.
@ Remove 2 (two)
+PSWS3 x 6 screws,
@ Remove 4 (four) +P3 x 12 screws and 4 (four)
transistor brackets.
(8) Circuit board checking can be made in the following
condition with power applied and without transistor
brackets for a short period of time,
SIDE
FRAMES,
REAR
COVER
AND
FRONT
COVER
C1) By using a long phillips-head screwdriver, remove &
(eight) +PSW3
x 6 screws. Side frames, rear cover
and front cover can be removed together upwards.
@ Remove 5 (five) +PSW3 x 6 screws,
PGA board can be fanned out upwards using harness
side as pivot,
[ HaA-1, HA-2 AND
SUB IN BOARDS
e"
a Br
de le Tedd
ed b et:
FEF
TE
PERE
=
e
s
8
.
a
ba
y
9
«
a
e
Y
t
a
ind
ae
|
iy
PRG
jointly PRT SE
tem,
|
sunning ERATE,
@ Unplug 3 (three) connectors,
© Pull off contro!/switch knobs and buttons, and,
remove all control/switch nuts.
HA-1
HA-2
SUB IN
4 ) Following shows unit with HA-1 board
for channel-1 removed.
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