Yamaha PF-1000 Service Manual page 13

3. Floppy Disk Drive
(Time required : About 6 minutes)
3-1 Turn over the top board assembly toward the front.
(See procedure 1)
3-2 Remove the four (4) screws marked [F40]. The floppy
disk drive can then be removed. (Fig. 3)
4. INV Circuit Board
(Time required : About 9 minutes)
4-1 Turn over the top board assembly toward the front.
(See procedure 1)
4-2 Remove the shield box assembly. (See procedure 2)
4-2 Remove the DM circuit board. (See procedure 2)
4-3 Remove the four (4) screws marked [L50]. The INV
circuit board can then be removed. (Fig. 4)
5. LCD Assembly
(Time required : About 9 minutes)
5-1 Turn over the top board assembly toward the front.
(See procedure 1)
5-2 Remove the shield box assembly. (See procedure 2)
5-3 Remove the DM circuit board. (See procedure 2)
5-4 Remove the four (4) screws marked [290E]. The LCD
assembly can then be removed. (Fig. 4)
6. PNCL Circuit Board
(Time required : About 11 minutes)
6-1 Turn over the top board assembly toward the front.
(See procedure 1)
6-2 Remove the shield box assembly. (See procedure 2)
6-3 Remove the DM circuit board. (See procedure 2)
6-4 Remove the three (3) screws marked [140C]. The DM
holder L can then be removed. (Fig. 4)
6-5 Remove the twelve (12) screws marked [290F]. The
PNCL circuit board can then be removed. (Fig. 4)
Floppy disk drive
[F40]
[F40]: Cup Screw 3.0x7.5 MFZN2Y (VF916400)
(Fig. 3)
PF-1000
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