Yamaha GX-900 Service Manual page 10

GX-900
7. Operation Check of P.C.B. CD
a. Remove the CD Mechanical Unit.
b. Remove 4 screws ( !1 ) and then remove the P.C.B. CD in Fig. 5.
c. Place blocks (at 3 locations) to hold the CD Mechanical Unit horizontally as shown in the Fig. 6.
d. Connect the Flat Connecting Cable ( CB9 ) and 2 connectors ( CB8 and CB7 ) in Fig. 5 and Fig. 6.
e. Connect the power plug and turn on the Power Switch.
!1
Block
9
P.C.B. CD
Block
Block
P.C.B. CD
CB9
CB8
CB7
Fig. 5
Fig. 6