Circuit Board - Yamaha CS1D Service Manual

CS1D
20. CS HMVOLB2

Circuit Board

20-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
20-2 Remove the two (2) knobs marked [C].
20-3 Remove the two (2) hexagonal nuts marked [C]. The CS
HMVOLB2 circuit board can then be removed. (Fig. 6, Fig. 7)
21. CS PNOS3 Circuit Board
21-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
21-2 Remove the six (6) screws marked [275]. The CS PNOS3
circuit board can then be removed. (Fig. 7)
21-3 Remove the twelve (12) switch knobs marked [A] on the
circuit board. (Fig. 6)
22. CS PNOS1L Circuit Board
22-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
22-2 Remove the CS PNOS3 circuit board. (See Procedure 21.)
22-3 Remove the fourteen (14) encoder knobs marked [C]. (Fig. 6)
22-4 Remove the fourteen (14) hexagonal nuts marked [C]. (Fig. 6)
22-5 Remove the five (5) screws marked [180B]. The CS
PNOS1L circuit board can then be removed. (Fig. 7)
23. CS PNOS1C Circuit Board
23-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
23-2 Remove the CS PNOS3 circuit board. (See Procedure 21.)
23-3 Remove the CS HMVOLA circuit board. (See Procedure 19.)
23-4 Remove the CS HMVOLB circuit board. (See Procedure 20.)
23-5 Remove the encoder knob marked [D] and the hexagonal
nut marked [440B]. (Fig. 6)
23-6 Remove the three (3) screws marked [180C]. The CS
PNOS1C circuit board can then be removed. (Fig. 7)
24. Fader Assembly, CS PNI2, CS PNOS5
Circuit Board
24-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
24-2 Remove the fader knob A. (Fig. 6)
24-3 Remove the two (2) screws marked [380A]. The fader
assembly A can then be removed. (Fig. 6, Fig. 7)
24-4 Remove the screw marked [370A]. The CS PNI2 circuit
board. (Fig. 7)
24-5 Remove the fader knob B. (Fig. 6)
24-6 Remove the two (2) screws marked [380B]. The fader
assembly B can then be removed. (Fig. 6, Fig. 7)
24-7 Remove the screw marked [370B]. The CS PNOS5 circuit
screws can then be removed. (Fig. 7)
25. Encoder Assembly
25-1 Remove the control panel assembly (OUT SEL).
(See Procedure 1.)
25-2 Remove the set screw marked [A] and the set screw marked
[B]. The knob wheel assembly can then be removed. (Fig. 6,
Fig. 7)
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