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Yamaha SILENT Piano SG Series Service Manual page 11

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B.
Exterior and Keyboard
- YUS1SG -
1.
Upper Front Board
(Time required: About 2 minutes)
1-1
Open the top board. (Fig. B-1)
1-2
Turn the right and left upper front board stoppers. (Fig.
B-2)
1-3
Put your hand on the middle portion of the upper front
board and lift it to remove it. (Fig. B-2)
Upper front board
(上前板)
Fig. B-1  (図B-1)
2.
Lower Front Board
(Time required: About 1 minute)
2-1
Remove the switch box unit. (See procedure A-1)
2-2
While pushing the spring, pull the knob to the front and
remove the lower front board. (Fig. B-3)
B.
1.
1-1
1-2
1-3
Top board
(屋根)
Fall board
(鍵盤蓋)
2.
2-1
2-2
Lower front board
(下前板)
Fig. B-3  (図B-3)
外装と鍵盤
- YUS1SG -
上前板 (所要時間:約2分)
屋根を開けます。 (図B-1)
左右の上前板止め木を内側に回します。 (図B-2)
上前板の中央部に手をかけ、持ち上げて外します。 (図
B-2)
Upper front board
stopper
(上前板止め木)
Fig. B-2  (図B-2)
下前板 (所要時間:約1分)
SW BOXユニットを外します。 (A-1項参照)
バネを押しながら下前板ツマミを手前に引き、下前板
を外します。 (図B-3)
Knob
(下前板ツマミ)
SILENT SG SERIES
Upper front board
stopper
(上前板止め木)
Upper front board
(上前板)
11

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