Sub Circuit Board; Pn1 Circuit Board; Pn2 Circuit Board; Pn3 Circuit Board - Yamaha DM2000 Service Manual

DM2000
Control Panel Assembly
When removing the circuit board, if it is hard to handle
while the control panel assembly is fixed slantwise
at the front stay, open it widely at 180° for the work.
20.

SUB Circuit Board

(Time required: About 15 minutes)
20-1. Remove the SP2000. (See procedure 1.)
20-2. Remove the MB2000. (See procedure 2.)
20-3. Fasten the control panel assembly. (See procedure 3.)
20-4. Remove the ten (10) screws marked [200B]. The
SUB circuit board can then be removed. (Fig.10)
21.

PN1 Circuit Board

(Time required: About 20 minutes)
21-1. Remove the SP2000. (See procedure 1.)
21-2. Remove the MB2000. (See procedure 2.)
21-3. Remove the four (4) encoder knobs marked [330A]
and the sixteen (16) encoder knobs marked [338A]
from the control panel side. (Fig.9)
21-4. Fasten the control panel assembly. (See procedure 3.)
21-5. Remove the SUB circuit board. (See procedure 20.)
21-6. Remove the twenty-four (24) screws marked [150A].
The PN1 circuit board can then be removed. (Fig.11)
22. PN2 (1/2) Circuit Board
(Time required: About 20 minutes)
22-1. Remove the SP2000. (See procedure 1.)
22-2. Remove the MB2000. (See procedure 2.)
22-3. Remove the four (4) encoder knobs marked [330B],
the five (5) encoder knobs marked [332], the four (4)
encoder knobs marked [334], the eight (8) encoder
knobs marked [336] and the eight (8) encoder knobs
marked [338B] from the control panel side. (Fig.9)
22-4. Fasten the control panel assembly. (See procedure 3.)
22-5. Remove the twenty-one (21) screws marked [150B].
The PN2 (1/2) circuit board can then be removed.
(Fig.11)
23. PN2 (2/2) Circuit Board
(Time required: About 15 minutes)
23-1. Remove the SP2000. (See procedure 1.)
23-2. Remove the MB2000. (See procedure 2.)
23-3. Fasten the control panel assembly. (See procedure 3.)
23-4. Remove the four (4) screws marked [150C]. The PN2
(2/2) circuit board can then be removed. (Fig.11)
24.

PN3 Circuit Board

(Time required: About 20 minutes)
24-1. Remove the SP2000. (See procedure 1.)
24-2. Remove the MB2000. (See procedure 2.)
24-3. Remove the knob marked [340] and the two (2)
knobs marked [350B] from the control panel side.
(Fig.9)
24-4. Fasten the control panel assembly. (See procedure 3.)
24-5. Remove the eighteen (18) screws marked [150D].
The PN3 circuit board can then be removed. (Fig.11)
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