Yamaha Portatone PSR-E213 Service Manual page 13

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Top view (上から見た図)
Rubber Contact
(接点ゴム)
(接点ゴム)
[90A]
MK-L
[90A] :
[90B] :
[100A] : Bind Head Tapping Screw-P 3x12 MFZN2W3 SP (WH899400) Pタイト+BIND
[100B] : Bind Head Tapping Screw-P 3x12 MFZN2W3 SP (WH899400) Pタイト+BIND
8.
MK-L Circuit Board, MK-H Circuit Board
(Time required: About 6 minutes each)
8-1
Remove the lower case keyboard assembly. (See pro-
cedure 5)
8-2
MK-L Circuit Board
8-2-1 Remove the keyboards from C1 to B3. (See procedure 6)
8-2-2 Remove the four (4) screws marked [90A], and eight (8)
screws marked [100A]. The MK-L circuit board can then
be removed. (Fig. 6-1)
8-3
MK-H Circuit Board
8-3-1 Remove the keyboards from C4 to C6. (See procedure 6)
8-3-2 Remove the three (3) screws marked [90B], and five (5)
screws marked [100B]. The MK-H circuit board can then
be removed. (Fig. 6-1)
*
When replacing the MK-L circuit board or the MK-H cir-
cuit board, attach the shield sheet L or the shield sheet
H on the pattern side of the new circuit board before
installing if these shield sheets are originally installed.
(U only) (Fig. 6-2)
Rubber Contact
[90A]
[90A]
[100A]
Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) Bタイト+BIND
Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) Bタイト+BIND
Shield Sheet L
(U only)
Wiring Assembly GND2
(U only)
Rubber Contact
Rubber Contact
(接点ゴム)
(接点ゴム)
[90A]
[90B]
[100A]
Fig. 6-1 (図 6-1)
Fig. 6-2 (図 6-2)
8.
MK-Lシート、MK-Hシート
(所要時間:各約6分)
8-1
下ケース鍵盤Ass'yを外します。 (5項参照)
8-2
MK-Lシート
8-2-1
C1∼B3の鍵盤を外します。 (6項参照)
8-2-2 [90A] のネジ4本と、 [100A] のネジ8本を外して、MK-L
シートを外します。 (図 6-1)
8-3
MK-Hシート
8-3-1
C4∼C6の鍵盤を外します。 (6項参照)
8-3-2 [90B] のネジ3本と、 [100B] のネジ5本を外して、MK-H
シートを外します。 (図 6-1)
PSR-E213/YPT-210
Rubber Contact
(接点ゴム)
[90B]
[90B]
[100B]
Shield Sheet H
(U only)
MK-H
13

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