Sony SA-WCT770 Service Manual ▷ View online
SA-WCT770
9
2-7. POWER BOARD
2-6. TOP PLATE BLOCK, FUSE (F900)
guide line
2 eight screws
(BV3)
(BV3)
2 five screws
(BV3)
(BV3)
6 fuse (F900)
2 three screws
(BV3)
(BV3)
1 unweaved cushion
unweaved cushion
4 Draw out the wire.
boss
boss
hole
hole
3 Remove the top plate block
in the direction of the arrow.
hole
5 top plate block
Note: When installing the top plate
Note: When installing the top plate
block, make the position of
two holes match two bosses.
two holes match two bosses.
top plate block
– Sub AMP block rear view –
:ire VeWWiQJ
5 screw
(BV3
(BV3
u 8 CU)
0 POWER board
4 connector
(CN114)
(CN114)
8 Remove the POWER
board block in the
direction of the arrow.
clamp (L35)
power cord
POWER board
POWER board
coating clip
SUB MAIN board
connector (CN114)
3RZHUFRUGVHWWLQJ
:LUHVHWWLQJ
2 power cord connector
(CN
(CN
900
)
7 clamp (L35)
6 screw
(BV3)
(BV3)
9 label fuse (T.H)
([FHSW86&DQDGLDQ
6 two screws
(BV3)
(BV3)
1 Remove the power cord
from the clamp (L35).
3 Remove two wires from
the coating clip.
–
6XE$03EORFNUHDUYLHZ–
Ver. 1.1
SA-WCT770
10
2-8. POWER CORD (AC1)
3RZHUFRUGVHWWLQJ
power cord
(AC1)
(AC1)
cord bushing
(FBS001)
(FBS001)
claw
8 power cord
(AC1)
(AC1)
7 two unweaved 2
cushions
cushions
6 cord bushing
(FBS001)
(FBS001)
5 claw
power cord
SUB MAIN board
3RZHUFRUGVHWWLQJ
2 power cord connector
(CN
(CN
900
)
1 Remove the power cord
from the clamp (L35).
3 Remove the power cord
from two wire holders.
wire holder
wire holder
power cord
POWER board
3RZHUFRUGVHWWLQJ
power cord (AC1)
cord bushing (FBS001)
claw
270 mm
to POWER board
clamp (L35)
–
6XE$03EORFNUHDUYLHZ–
Note: When installing the power cord (AC1), check the direction
of claw of cord bushing (FBS001) and install correctly.
4 two claws
cord bush
SA-WCT770
11
2-10. REAR PLATE BLOCK
2-9. RF MODULATOR (SWA12-4V RX) (RF1)
4 flexible flat cable (24 core)
Note
Note
1:
When installing the flexible flat cable (24 core),
insert in the correct orientation after confirming
the terminal face.
2 screw (BV3)
1 connector (CN107)
5 RF modulator (SWA12-4V RX) (RF1)
3 Remove the RF modulator block
in the direction of the arrow.
Note 2: When installing the flexible flat cable, ensure the colored line.
No slanting after insertion.
– Sub AMP block rear view –
colored line
colored line
Insert is straight to the interior.
Insert is incline
flexible flat
cable
cable
flexible flat
cable
cable
connector
connector
OK
NG
– Sub AMP block rear view –
1 two screws
(BV3)
1 screw
(BV3)
1 two screws
(BV3)
1 screw
(BV3)
3 connector
(CN113)
4 rear plate block
2 Remove the rear plate block
in the direction of the arrow.
SA-WCT770
12
2-11. SUB MAIN BOARD
2 connector
(CN
(CN
114
)
4 two screws
(BV3)
(BV3)
– Sub AMP block rear view –
8 SUB MAIN board
IC104
7 two screws
(BV3)
(BV3)
7 screw
(BV3)
(BV3)
5 heatsink (main)
3 connector
(CN
(CN
111
)
1 Remove two wires
from the coating clip.
coating clip
SUB MAIN board
connector
(CN114)
(CN114)
connector
(CN111)
(CN111)
:LUHVHWWLQJ
6 screw
(BV3
(BV3
u 8 CU)
Note: When installing the heatsink (main), spread the
compound referring to “NOTE OF REPLACING
THE IC104 ON THE SUB MAIN BOARD
AND THE COMPLETE SUB MAIN BOARD”
on servicing notes (page 3).
THE IC104 ON THE SUB MAIN BOARD
AND THE COMPLETE SUB MAIN BOARD”
on servicing notes (page 3).
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