Yamaha Silent SB Series Servicehandleiding - Pagina 6
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SILENT SB SERIES
Keyboard
B:
Electrical Parts
1.
Key Sensor Unit
(time required: about 27 minutes)
1-1 Remove the upper front board. (See Procedure A-1)
1-2 Remove the fall board. (See Procedure A-3)
1-3 Remove the key stop rail. (See Procedure A-3)
1-4 Remove all keys. (See Procedure A-3)
1-5 Remove the eight (8) screws marked [31S]. the key
sensor unit can then be removed. (Fig. B-1)
q
[31S]
2.
KEY SENSOR Circuit Board
(time required: about 28 minutes)
2-1 Remove the upper front board. (See Procedure A-1)
2-2 Remove the key board cover. (See Procedure A-3)
2-3 Remove the key stop rail. (See Procedure A-3)
2-4 Remove all keys. (See Procedure A-3)
2-5 Remove the key sensor unit. (See Procedure B-1)
2-6 Remove the two (2) screws marked [51G]. the KEY
SENSOR circuit board can then be removed. (Fig. B-2)
Top View
Rear View
[51G]: Bind Head Tapping Screw-S 3.0X4 MFZN2Y (VP357200)
6
(Fig. A-6)
w
e
[31S]
[31S]
Key sensor unit
KEY SENSOR
[51G]
Key shutter
(Fig. A-7)
q
[31S]: Truss Head Tapping Screw-1 4.0X20 MFZN2BL (03747290)
(Fig. B-1)
Top View
Rear View
(Fig. B-2)
Keyboard
w
KEY SENSOR
e
Key sensor unit
KEY SENSOR
[51G]