Ani Circuit Board; 2Tri, Lrg, Sml, St, Std, Phn Circuit Boards; Ad Circuit Board - Yamaha DM2000 Service Manual

DM2000
16.

ANI Circuit Board

(Time required: About 20 minutes)
16-1. Remove the SP2000. (See procedure 1.)
16-2. Remove the MB2000. (See procedure 2.)
16-3. Fasten the control panel assembly. (See procedure 3.)
16-4. Remove the PC support. (See procedure 15.)
16-5. Remove the four (4) screws marked [160A] and
disconnect the connector from the AD circuit board.
The ANI circuit board can then be removed. (Fig.7)
There is a total of twenty-four (24) ANI circuit
boards, and they can all be removed in this way.
17.

2TRI, LRG, SML, ST, STD, PHN Circuit Boards

(Time required: About 20 minutes each)
17-1. Remove the SP2000. (See procedure 1.)
17-2. Remove the MB2000. (See procedure 2.)
17-3. Fasten the control panel assembly. (See procedure 3.)
17-4. Remove the PC support. (See procedure 15.)
17-5. 2TRI Circuit Board:
Remove the two (2) screws marked [160B] and
disconnect the connector from the DA2 circuit board.
The 2TRI circuit board can then be removed. (Fig.7)
17-6. LRG Circuit Board:
Remove the four (4) screws marked [160C] and
disconnect the connector from the DA2 circuit board.
The LRG circuit board can then be removed. (Fig.7)
17-7. SML Circuit Board:
Remove the four (4) screws marked [160D] and
disconnect the connector from the DA2 circuit board.
The SML circuit board can then be removed. (Fig.7)
17-8. ST Circuit Board:
Remove the four (4) screws marked [160E] and
disconnect the connector from the DA2 circuit board.
The ST circuit board can then be removed. (Fig.7)
17-9. STD Circuit Board:
Remove the two (2) screws marked [160F] and
disconnect the connector from the DA2 circuit board.
The STD circuit board can then be removed. (Fig.7)
17-10. PHN Circuit Board:
Remove the two (2) screws marked [170] and
disconnect the connector from the DA2 circuit board.
The PHN circuit board can then be removed. (Fig.7)
18.

AD Circuit Board

(Time required: About 25 minutes)
18-1. Remove the SP2000. (See procedure 1.)
18-2. Remove the MB2000. (See procedure 2.)
18-3. Fasten the control panel assembly. (See procedure 3.)
18-4. Remove the PC support. (See procedure 15.)
18-5. Remove the twelve (12) ANI circuit boards.
(See procedure 16.)
18-6. Remove the eight (8) screws marked [80A]. The AD
circuit board can then be removed. (Fig.8)
There is a total of two (2) AD circuit boards,
and they can all be removed in this way.
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