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Yamaha YDP-131 Service Manual page 11

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14.
PL Circuit Board
(Time required: About 10 minutes)
14-1
Remove the top board assembly. (See procedure 2)
14-2
Remove the key cover assembly. (See procedure 6)
14-3
Remove the stopper rail assembly. (See procedure 7)
14-4
Remove the rack L and R. (See procedure 8)
14-5
Remove the end block assembly L and R.
(See procedure 9)
14-6
Remove the keyboard assembly. (See procedure 10)
14-7
Remove the screw marked [6A]. The PL circuit board
can then be removed. (Fig. 10)
15.
Back Top Board Assembly
(Time required: About 5 minutes)
15-1
Remove the top board assembly. (See procedure 2)
15-2
Remove the DM and AM circuit boards.
(See procedure 4)
15-3
Remove the three (3) screws marked [S02A] each from
both sides of the assembly. (Fig. 11)
15-4
Remove the ten (10) screws marked [S01C]. The back
top board assembly can then be removed. (Fig. 12)
PL
Arm assembly L(腕木Ass'y L)
[6A]
[6A]:
Bind Head Tapping Screw-1  (TP#1+BIND)
3.5X10 MFZN2W3 (WE970800)
Fig. 10   (図10)
<Top view>
Arm assembly L(腕木Ass'y L)
[S01C]
[S01E]
[S01E]
[S01D]
[S01]: Bind Head Tapping Screw-1  (TP#1+BIND)  3.5X12 MFZN2W3 (WE970900)
[S01C]
[S01D]
[S01D]
Front rail assembly(口棒Ass'y)
14.
PLシート 
14-1
屋根Ass yを外します。 ( 2項参照)
14-2
スライド蓋Ass yを外します。 ( 6項参照)
14-3
鍵盤押えAss yを外します。 ( 7項参照)
14-4
ラック (L ・ R) を外します。 ( 8項参照)
14-5
拍子木Ass y (L ・ R)を外します。 ( 9項参照)
14-6
GHL (GHS) 鍵盤Ass yを外します。 ( 10項参照)
14-7
[6A]のネジ1本を外し、 PLシートを外します。 ( 図10)
15.
背面框Ass y 
15-1
屋根Ass yを外します。 ( 2項参照)
15-2
DMシート、 AMシートを外します。 ( 4項参照)
15-3
[S02A]のネジを左右3本ずつ外します。 ( 図11)
15-4
[S01C]のネジ10本を外し、 背面框Ass yを外しま
す。 ( 図12)
<Left side view>
Arm assembly L(腕木Ass'y L)
[S02B]
Front rail assembly
(口棒Ass'y)
[S02]: Bind Head Tapping Screw-1  (TP#1+BIND)
3.5X16 MFZN2W3 (WE970700)
Back top board assembly(背面框Ass'y)
[S01C]
[S01D]
[S01D]
Fig. 12   (図12)
YDP-131/YDP-131C
(所要時間 : 約10分)
(所要時間 : 約5分)
Back top board assembly
(背面框Ass'y)
Fig. 11   (図11)
Arm assembly R(腕木Ass'y R)
[S01C]
[S01C]
[S01D]
[S01D]
[S02A]
[S02A]
11

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