Sony WX-GT77UI / WX-GT78UI / WX-GT78UIM Service Manual ▷ View online
WX-GT77UI/GT78UI/GT78UIM
9
3-4. MAIN BOARD
3-5. SERVO BOARD
RI
MAIN board
insulating sheet
two screws
(+PTT
2.6
× 8)
screw
(+PTT
2.6
× 8)
screw
(+PTT
2.6
× 8)
three ground point screws
(+PTT
2.6
× 6)
RH
heat sink
CN203 (5P)
CN901 (3P)
connection cord (RCA)
connection cord (USB)
RB two screws
(+P
(+P
2.6
× 8)
RT two screws
(+PTT
(+PTT
2.6
× 10)
RE two screws
(+PTT
(+PTT
2.6
× 8)
RG screw
(+PTT
(+PTT
2.6
× 10)
screw
(+PTT
(+PTT
2.6
× 10)
SERVO board
SERVO board
toothed lock screw
(M
1.7
× 2.5)
toothed lock screw
(M
1.7
× 2.5)
Remove the eleven solders.
GRY
YEL
BLU
ORG
RED
BLK
RED
WHT
BLK
RED
WHT
claw
claw
optical pick-up (16 core)
(CN101)
WX-GT77UI/GT78UI/GT78UIM
10
3-6. CHASSIS (T) SUB ASSY
3-7. ROLLER ARM ASSY
chassis (T) sub assy
claw
two screws
(M
1.7
× 2.5)
two screws
(M
1.7
× 2.5)
washer
gear (RA1)
roller arm assy
spring (RAL)
spring (RAR)
WX-GT77UI/GT78UI/GT78UIM
11
3-8. CHASSIS (OP) ASSY
3-9. CHUCKING ARM SUB ASSY
two coil springs (damper) (natural)
coil spring (damper) (green)
chassis (OP) assy
tension spring (KF)
gear (LE1)
lever (D)
slider (R)
chucking arm sub assy
spring
Note: Have this portion receive the chassis.
Note: Have this portion receive the chassis.
Note: Be careful not to touch the turn table.
WX-GT77UI/GT78UI/GT78UIM
12
3-10. SLED MOTOR ASSY
sled motor assy
sled motor assy
spring
spring
stand
stand
turn table
three serration screws
(M
2
× 3)
three serration screws
(M 2
(M 2
× 3)
Note: Place the stand with care not to touch the turn table.
Note:
Never remove these parts since they were adjusted.
Never remove these parts since they were adjusted.
Note for Assembly
Note: Take care to prevent the chassis from being bent
when tightening the three machine screws.
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