Disassembly Procedure - Yamaha MS400 Service Manual

MS400
QQ
3 7 63 1515 0

DISASSEMBLY PROCEDURE

1. Amplifier assembly
1-1. Remove the sixteen (16) screws marked [180A]. The
amplifier assembly can then be removed. (Fig. 1)
2. Cabinet assembly and buffle assembly
2-1. Remove the nineteen (19) screws marked [170]. The
buffle assembly can then be removed from the
capinet assembly. (Fig. 1)
3. Speakers (38cm, 25mm)
3-1. Remove the buffle assembly from the cabinet
assembly. (See Procedure 2.)
3-2. To remove the 38cm speaker, remove the four (4)
screws marked [180B] and the front grille. (Fig. 1)
3-3. Remove the eight (8) bolts marked [70]. The 38cm
speaker can then be removed. (Fig. 1)
3-4. To remove the 25mm speaker, remove the four (4)
screws marked [120]. Then remove the speaker with
the bracket. (Fig. 1)
3-5. Remove the two (2) screws marked [100]. The 25mm
speaker can then be removed from the bracket. (Fig. 1)
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L 13942296513
[70]
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[180A]
[170]
[180B]
[180A]
[70]: Hexagonal Bolt 5.0 X 35 MFZN2BL (V6389200)
[120]: Bind Head Tapping Screw-P 5.0 X 30 MFZN2BL (V6405200)
[170]: Bind Head Tapping Screw-P 5.0 X 50 MFZN2BL (V6084800)
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[180]: Bind Head Screw-Giza 4 X 16 MFZN2BL (V6396400)
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Fig.1
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8
Q Q
3 6 7 1 3
[170]
[170]
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2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
38cm Speaker
[120]
Red
Red
25mm Speaker
[100]
Red marking
Yellow
m
co
9 9
2 8 9 9
Black
Black
Blue