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6. REPAIRS
6-1. Removal of the main parts
(1)
Removal of the cabinet
a) Turn over the machine and remove three screws
securing the cabinet. (See figure 6-1 )
b) Open the original tray and the operation panel,
then remove three screws securing the cabinet
(See figure 6-2)
c) Press the open button to open the receiving cover,
then remove the cabinet. (See figure 6-2)
d) Disconnect the CN 43 on the M-4 (TEL) PCB.
(See figure 6-3)
three screws securing the cabinet
/
L
\
/
IJ
/
FIGURE 6-1
two screws
securing the bottom cover
open button
original tray
\(
—
\\
I
three screws securing
d) Disconnect the connectors
CN2 and CN6 on the
main PCB (M-1) while lifting up the transmission
mechanical
unit. (See figure 6-5)
(3) Removal of the receiving mechanical
unit.
a) Remove the cabinet. (Refer to the procedure
6-l-(l))
b) Remove the transmission
mechanical
unit.
(Refer to the procedure 6-1-(2))
c) Remove two screws securing the receiving
mechanical
unit. (See figure 6-4)
m
\\
two screws securing receiving mechanical unit
M-1 (main)
PCB
GURE 6-4
M-3 (NCU)PCB
d) Disconnect
the connector
CN5 and CN7 on the
main PCB (M-l).
(See figure 6-5)
(4) Removal of the main PCB (M-1).
a)
b)
c)
d)
Remove the cabinet and the transmission
mechanical
unit. (Refer to the procedure 6-1-(1)
and 6-1 -(2))
Disconnect the connectors
CN4, CN5 and CN7 on
the main PCB (M-l). (See figure 6-5)
Remove two screws securing the main PCB (M-l).
(See figure 6-5)
Remove the main PCB (M-1) while pressing down
M-3 (NCU). M-3 and M-1 are directly connected
through the connector.
.-
F-JL=JOperatiOnpane'
":::
-
(2) Removal
of the transmission
mechanical
unit.
a)
Remove two screws securing the bottom cover.
(See figure 6-1)
b) Remove the cabinet (Refer to the procedure
6-l-(l))
CN2
c)
Remove two screws securing transmission
M-4 (lE
M-~(main)
mechanical
unit. (See figure 6-3)
one
E 6-5
(5) Removal of the M-3 (NCU) PCB.
M-4
a) Remove
the cabinet
and the transmission
mechanical
unit. (Refer to the procedure
6-1-(1)
and 6-1 -(2))
b) Remove
the main PCB (M-1). (Refer to the
procedure
6-1 -(4))
c) Remove
one screw securing
the M-3 (NCU).
-
(See figure 6-5)
F
d) Disconnect the connectors
CN41 and CN42.
—22—
(See figure 6-5)
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