Bottom Assembly Section; Main Circuit Board; Replacing The Lithium Battery; Dca Circuit Board - Yamaha 01v 96 Service Manual

01V96

Bottom Assembly Section

2.

MAIN Circuit Board

(Time required: About 5 minutes)
2-1. Fasten the control panel assembly. (See procedure 1.)
2-2. Remove the nine (9) screws marked [130]. The MAIN
circuit board can then be removed. (Fig.2)
3.

Replacing the Lithium Battery

(Time required: About 3 minutes)
3-1. Fasten the control panel assembly. (See procedure 1.)
3-2. You can replace the lithium battery from the MAIN
circuit board. (Fig.2)
The lithium battery is not part of the MAIN
circuit board. When you replace the MAIN
circuit board, you should remove the lithium
battery from the board, and install in the holder
on the new circuit board.
Important data should be backed up by MIDI
dump. (See page 115.)
4.

DCA Circuit Board

(Time required: About 6 minutes)
4-1. Fasten the control panel assembly. (See procedure 1.)
4-2. Remove the four (4) screws marked [220], the three
(3) screws marked [221] and the five (5) screws
marked [222]. The DCA circuit board can then be
removed. (Fig.2, Photo.2)
5. DCD Circuit Board
(Time required: About 5 minutes)
5-1. Fasten the control panel assembly. (See procedure 1.)
5-2. Remove the four (4) screws marked [290] and the
two (2) screws marked [291]. The DCD circuit board
can then be removed. (Fig.2, Photo.3)
6. AC Shield Plate
(Time required: About 4 minutes)
6-1. Fasten the control panel assembly. (See procedure 1.)
6-2. Remove the four (4) screws marked [170]. The AC
shield plate can then be removed. (Fig.2, Photo.4)
7. Power Transformer
(Time required: About 5 minutes)
7-1. Fasten the control panel assembly. (See procedure 1.)
7-2. Remove the AC shield plate. (See procedure 6.)
7-3. Remove the four (4) screws marked [110]. The power
transformer can then be removed. (Fig.2)
24
Control panel assembly
Stay
(WA963600)
Bottom assembly
Photo.1