Sanyo SFX-33 Service Manual page 29

(6) Removal of the M-7 (Power Supply) PCB
a) Remove the cabinet, transmission mechanical unit
and receiving mechanical unit.
(Refer to the procedure 6-l-(l), 6-1-(2) and 6-l-(2))
b) Disconnect the connectors CN71 and CN73.
(Fig. 6-5)
c) Remove the M-4 (TEL) PCB and one screw for
earth wire coming from the M-7 (Power Supply)
PCB. (Fig. 6-5)
d) Remove two screws securing the M-7 (Power
Supply) PCB. (Fig.6-5)
(7) Removal of M-4 (TEL) PCB
a) Remove the cabinet. (Refer to the procedure 6-1-(1))
b) Disconnect the connectors CN41 and CN42 on the
M-4 (TEL) PCB. (Fig. 6-5)
c) Remove one screw securing the M-4 (TEL) PCB
(Fig. 6-5)
(8) Removal of M-2 (Operation Panel) PCB and LCD
a) Remove the cabinet and the transmission
mechanical unit. (Refer to the procedure 6-1-(1)
and 6-1 -(2))
b) Remove two screws securing the operation ~anel.
(Fig. 6-6)
c) Remove five screws securing the reverse side cover.
(Fig. 6-6)
d)
e)
f)
Disconnect the connector CN22 on M-2 (Operation
Panel) PCB.(Fig. 6-7)
Remove eight screws securing the M-2 (Operation
Panel) PCB. (Fig. 6-7)
Remove LCD by removing two screws. (Fig. 6-7)
(9) Removal of M-5 (Rx. Mechanical Control) PCB
a) Remove the receiving mechanical unit. (Refer to
the 6-l-(3))
b) Remove two screws securing the M-5
(Rx. mechanical control) PCB. (Fig. 6-8)
c) Disconnect the connectors CN51, CN52, CN53
and CN54. (Fig. 6-8)
(10) Removal of M-6 (Tx. Mechanical Control) PCB
a) Remove the transmission mechanical unit. Refer
to the 6-1-(2))
b) Remove the hooks (two places) fixing the M-6 (Tx.
mechanical control) PCB. (Fig. 6-9)
c) Disconnect the connectors CN61, CN62 and
CN63. (Fig. 6-9)
Transmission mechanical unit
u
hboks (two places)
FIG. 6-9
29
one screwsecuringthe
two screwssecuringthe
M-4 (TEL) PCB
M7 (powersupply) PCB
\
M-7 (powersupply) PCB
31-
CN71
)
I ']
1
tio screwssecutina
w%maYi&5
/
~
",. "
G=
M-1 (main)
PCB
\
one screw sec~ring the M-3 (NCU) \ M-3 (NCU) PCB
FIG. 6-5
five screws securing the reverse side cover
two screws sec~ring the operation panel
FIG. 6-6
M-2 (operation panel) two screws securing LCD
PCB
\ ~ LCD
eight screws securing the
FIG. 6-7
M-2 (operation panel) PCB
CN52 CN54
K-'
\
two screws securing the M-5
receiving mechanical
(Rx. mechanical control) PCB unit
FIG. 6-8
PCB