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Yamaha YDP-131 Service Manual page 7

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4.
Circuit Boards & Assemblies (Main Unit)
(Time required: About 3 minutes each)
4-1
Remove the top board assembly. (See procedure 2)
4-2
Each circuit board and assembly can be removed by
removing its fixing screws as listed below.
Circuit board and Assembly
DM
AM
D-JACK Assembly (DジャックAss y) S01A
Speaker L (スピーカL)
Speaker R (スピーカR)
5.
DJ Circuit Board
(Time required: About 3 minutes)
5-1
Remove the top board assembly. (See procedure 2)
5-2
Remove the D-JACK assembly. (See procedure 4)
5-3
Remove the three (3) screws marked [3A] and the two
(2) screws marked [4]. The DJ circuit board can then be
removed from the D-JACK angle. (Fig. 4)
<Top view>
Speaker L
(スピーカL)
[S04A]
[S01A]
[S03C]
[S03C]: Bind Head Tapping Screw-B  (Bタイト+BIND)  3.0X8 MFZN2W3 (WE774300)
D-JACK Assembly (DジャックAss y)
[3A]:
[4]:
Ref. No.
S03A
Bind Head Tapping Screw-B (Bタイト+BIND) 3.0X8 MFZN2W3 (WE774300)
Bind Head Tapping Screw-B (Bタイト+BIND) 3.0X8 MFZN2W3 (WE774300)
S03B
S11
Bind Head Screw (小ネジ+BIND) 3.0X8 MFZN2B3 (WE983600)
Bind Head Tapping Screw-1 (TP#1+BIND) 3.5X12 MFZN2W3 (WE970900)
S04A
Truss Head Tapping Screw-1 (TP#1+TRUS) 4.0X16 MFZN2W3 (WE965700)
S04B
Truss Head Tapping Screw-1 (TP#1+TRUS) 4.0X16 MFZN2W3 (WE965700)
D-JACK assembly
(DジャックAss'y)
[S03A]
Stopper rail assembly
(鍵盤押えAss'y)
Fig. 3   (図3)
D-JACK angle
(Dジャック金具)
[3A]
Bind Head Tapping Screw-B  (Bタイト+BIND)  3.0X8 MFZN2W3 (WE774300)
Bind Head Tapping Screw-B  (Bタイト+BIND)  3.0X8 MFZN2W3 (WE774300)
Fig. 4   (図4)
4.
基板とアッセンブリ (メインユニット部)
(所要時間 : 各約3分)
4-1
屋根Ass yを外します。 ( 2項参照)
4-2
次のネジを外すことにより、 基板 ・ アッセンブリを外
すことができます。
Screw
5.
DJシート 
(所要時間 : 約3分)
5-1
屋根Ass yを外します。 ( 2項参照)
5-2
DジャックAss yを外します。 ( 4項参照)
5-3
[3A]のネジ3本と[4]のネジ2本を外し、 DJシートをD
ジャック金具から外します。 ( 図4)
Rear view
[S03A]
[S03B]
AM
DM
[S03C]
DJ
[4]
YDP-131/YDP-131C
QTY Fig.
[S11]
Speaker R
(スピーカR)
[S04B]
[S04B]
[S03B]
[S03C]
4
3
8
3
1
3
4
3
4
3
4
3
7

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