Disassembly Procedures - Yamaha GX-505 Service Manual

DISASSEMBLY PROCEDURES

1. Removal of Top Cover
Remove 11 screws ( q ) in Fig. 1.
2. Removal of CD/VCD Mechanical Unit
a. Disconnect the power cord from the AC outlet.
b. Push the Friction Arm ( the bottom side of the CD/
VCD Mechanical Unit ) with a finger as shown in Fig.
2.
c. Pull the Tray forward approx. 5cm ( 2" ) and remove
the CD Lid in Fig. 2.
d. Push the Tray back to the original, closed position.
e. Disconnect the Flat Connecting Cables ( CB10 ) on the
CD/VCD P.C.B. and remove 3 connectors ( CB11 ,
CB12 and CB9 ) on the CD/VCD P.C.B. in Fig. 2.
f. Remove 4 screws ( w ) and then remove the CD
Mechanical Unit in Fig. 1.
3. Removal of Panel Unit
a. Rotate the Loading Gear, then open the Tray and
remove the Cassette Lid in Fig. 2.
b. Push the Tray back to the original, closed position.
c. Disconnect the flat connecting cables ( CB10, CB13
and CB11 ) on the INPUT P.C.B. and remove a
connector ( CB805 ) in Fig. 2.
d. Remove 5 screws ( e ) and 2 screws ( r ), and then
remove the Panel Unit in Fig. 1 and Fig. 2.
CD/VCD P.C.B.
CB12
(VCD only)
CB11 CB9
CB11
(VCD only)
INPUT P.C.B.
r
(Remove parts in the order as numbered.)
Friction
Arm
FRONT
CB10
CD Lid
CB805
CB13
CB10
Cassette Lid
Fig. 2
Loading Gear
Top Cover
q
CD/VCD Mechanical Unit
w
e
e
Panel Unit
4. Removal of Deck Mechanical Unit
a. Remove 4 screws ( t ) and then remove the Deck
Mechanical Unit in Fig. 3.
b. Remove 3 connectors ( W2, W3 and W4 ) in Fig. 3.
W2
t
W4
t
W3
Deck Mechanical Unit
GX-505/GX-505VCD
q
q
q
q
w
w
r
Fig. 1
e
t
t
Fig. 3
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