Yamaha YDO-323 Service Manual page 7

PS
(Pattern side)
Fig. 5-1
7. DJACK Circuit Board
(Time required: About 3 minutes)
7-1 Remove the top board assembly. (See procedure 3)
7-2 Remove the D-JACK assembly. (See procedure 5)
7-3 Remove the three (3) screws marked [3A] and the two
(2) screws marked [4]. The DJACK circuit board can
then be removed from the D-JACK angle. (Fig. 6)
D-JACK Assembly
●
<Bottom view>
[3A]
DJACK
[4]
[3A]: Bind Head Tapping Screw-B 3.0X8 MFZN2B3 (WE774400)
[4]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
Fig. 6
Solder
D-JACK angle
8. Key Cover Assembly
(Time required: About 2 minutes)
8-1 Close the key cover.
8-2 Remove the top board assembly. (See procedure 3)
8-3 Lift the rear key cover assembly. (Fig. 7)
8-4 Lean slightly the key cover assembly so that the guide
pin can be removed from the guide rail. (Fig. 7-1)
* When removing, be sure not to nake scratches on the
side cover.
* When reinstalling the key cover assembly, apply a
masking shield tape around the guide rail to prevent
from making scratches on the assembly.
Fig. 7
Key cover assembly
Guide pin
Guide rail
Fig. 7-1
YDP-323
Key cover assembly
7