Yamaha XM4220, Руководство по обслуживанию

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XM6150/XM4220
9
[480]
[480]
[480]
[480]
Rear assembly
Top cover
[400] [400]
[490]
DISASSEMBLY PROCEDURE
1. Top Cover
1-1 Remove the nine (9) screws marked [480]. The top
cover can then be removed. (Fig.1)
2. Front Panel
2-1 Remove the top cover. (See procedure 1.)
2-2 Remove the four (4) screws marked [450]. The front
panel can then be removed. (Fig.2)
3. Rear Assembly
3-1 Remove the top cover. (See procedure 1.)
3-2 Remove the six (6) screws marked [400] and the
screw marked [490]. The rear assembly can then be
removed. (Fig.1)
4. DRV6(3/5) Circuit Board <XM6150>
DRV4(3/5) Circuit Board <XM4220>
4-1 Remove the top cover. (See procedure 1.)
4-2 Remove the rear assembly. (See procedure 3.)
4-3 Remove the four (4) screws marked [100], the two
(2) screws marked [110] and the screw marked [60].
The DRV6(3/5) circuit board or the DRV4(3/5) circuit
board can then be removed. (Fig.2)
5. Power Transformer
5-1 Remove the top cover. (See procedure 1.)
5-2 Remove the four (4) screws marked [80]. The power
transformer can then be removed. (Fig.2)
(Fig.1)
[400]: Bonding Tapping Screw-B 4.0 X 8 MFZN2BL (VR779900)
[480]: Bind Head Tapping Screw-B 4.0 X 8 MFZN2BL (EG340190)
[490]: Bind Head Screw A4.0 X 8 MFZN2BL (VP156800)
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Top View
〉
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Rear View
〉
[60]: Bind Head Screw A4.0 X 8 MFZN2BL (VP156800)
[80]: Bind Head Screw SP5.0 X 10 MFZN2BL (VU688100)
[100]: Bind Head Tapping Screw-B 3.0 X 8 MFZN2BL (EP600190)
[110]: Bind Head Tapping Screw-B 3.0 X 12 MFZN2BL (VQ074600)
[450]: Bind Head Tapping Screw-B 4.0 X MFZN2BL (EG340190)
[450] [450]
[450]
[450]
DRV6 DRV4 3/5 or 3/5
Front panel
Power Power
Transformer Transformer
Power
Transformer
[80]
[110]
[80]
[80]
[100]
(Fig.2)
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Top View
〉
〈
Front View
〉