Yamaha DG80-112 Service Manual page 8

DG80-112
8. PN Circuit Board
8-1 Remove the pre-main unit. (See Procedure 1.)
8-2 Remove the front panel assembly.
(See Procedure 3.)
8-3 Remove the six (6) screws marked [90]. The
PN circuit board assembly can then be removed.
(Fig. 5)
8-4 Remove the seven (7) top cap assemblies from
the PN circuit board assembly.
9. ANF Circuit Board
9-1 Remove the pre-main unit. (See Procedure 1.)
9-2 Remove the front panel assembly.
(See Procedure 3.)
9-3 Remove the two (2) knobs marked [110], the
two (2) hexagonal nuts marked [B] and the
hexagonal nut marked [120A]. The ANF circuit
board can then be removed. (Fig. 5)
10. ANF2 Circuit Board
10-1 Remove the pre-main unit. (See Procedure 1.)
10-2 Remove the hexagonal nut marked [120B]. The
ANF2 circuit board can then be removed. (Fig. 5)
11. VR Circuit Board
11-1 Remove the pre-main unit. (See Procedure 1.)
11-2 Remove the front panel assembly.
(See Procedure 3.)
11-3 Remove the eight (8) knobs marked [100] and
the four (4) screws marked [30D]. The VR circuit
board assembly can then be removed. (Fig. 5)
11-4 Remove the eight (8) hexagonal nuts marked
[C]. The VR circuit board can then be removed
from the VR circuit board assembly. (Fig. 6)
12. Replacement of The Lithium Battery
12-1 Remove the pre-main unit. (See Procedure 1.)
12-2 The lithium battery marked [D], on the DM
circuit board, can be replaced.
Battery VS246400
VS246300(Battery holder for VS246400)
Notice for back-up battery removal
Push against the holder hook, then the
battery will pop up.
Druk tegen de houder, de batterij springt
dan naar voren.
8
Battery [D]
Battery holder
ANF
ANF2
[90]
VR
[120B]
[120A]
[110], [B]
[30D]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[90]: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
[120A,B]:Hexagonal Nut 9.0X12X2 MFNI33 (LX200060)
(Fig. 5)
VR
[C]
(Fig. 6)
VR circuit board assembly
[30D]
PN
Top cap assemblies
[100]
Angle,motor volume