Disassembly Procedure; Amplifier Assembly; Cabinet Assembly And Buffle Assembly - Yamaha MS 300 Service Manual

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MS300
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DISASSEMBLY PROCEDURE

1.
Amplifier assembly (Time required: 5 min.)
1-1.
Remove the sixteen (16) screws marked [160A]. The
amplifier assembly can then be removed. (Fig. 1)
2.

Cabinet assembly and buffle assembly

(Time required: 10 min.)
2-1.
Remove the sixteen (16) screws marked [150]. The
buffle assembly can then be removed from the
capinet assembly. (Fig. 1)
3.
Speakers (30cm) (Time required: 15 min.),
Horn driver (Time required: 12 min.) and
Diaphragm assembly (Time required: 11 min.)
3-1.
Remove the buffle assembly from the cabinet
assembly. (See Procedure 2.)
3-2-1. To remove the 30cm speaker, remove the four (4)
screws marked [160B] and the front grille. (Fig. 1)
3-2-2. Remove the eight (8) bolts marked [70]. The 30cm
speaker can then be removed. (Fig. 1)
3-3-1. To remove the horn driver, remove the four (4) screws
marked [110]. Then remove the speaker with the
bracket. (Fig. 1)
3-3-2. Remove the two (2) screws marked [100]. The horn
TE
driver can then be removed from the bracket. (Fig. 1)
L 13942296513
3-4.
Remove the three (3) screws marked [80b]. The
diaphrage assembly can then be removed. (Fig. 1)
[70]
www
[70]: Hexagonal Bolt 5.0 X 35 MFZN2BL (V6389200)
.
[100]: Bind Head Screw 1/4" -2ouncx 3/8" (V6289600)
[110]: Bind Head Tapping Screw-P 5.0 X 30 MFZN2BL (V6405200)
[150]: Bind Head Tapping Screw-P 5.0 X 50 MFZN2BL (V6084800)
[160]: Bind Head Screw-Giza 4 X 16 MFZN2BL (V6396400)
8
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[150]
[160A]
[150]
[160B]
[150]
[160A]
[150]
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2 9
8
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3
6 7
1 3
1 5
[160A]
[150]
[150]
[160A]
co
Fig.1
.
9 4
2 8
0 5
8
2 9
9 4
2 8
30cm Speaker
[110]
Black
Red
[100]
Horn Driver
[80b]
[110]
m
Red marking
Yellow Blue
9 9
9 9
Red marking
[110]

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