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Disassembly Procedure - Yamaha AFC1 Service Manual

Active field controller

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AFC1

DISASSEMBLY PROCEDURE

1.
Top Cover (Time required: About 2 minutes)
1-1
Remove the fourteen (14) screws marked [470]. The
top cover can then be removed. (Fig. 1)
2.
Front Panel Assembly
(Time required: About 5 minutes)
2-1
Remove the top cover. (See procedure 1.)
2-2
Remove the eight (8) screws marked [345A] and
the two (2) screws marked [350]. The left and right
mount brackets can then be removed. (Fig. 1)
2-3
Remove the screw marked [70] and the four (4)
screws marked [320]. The front panel assembly can
then be removed. (Fig. 1)
< Left side view >
[350]
[345A]
(マウントブラケット)
3.
MAIN+SUB Circuit Boards
(Time required: About 5 minutes)
3-1
Remove the top cover. (See procedure 1.)
3-2
Remove the four (4) screws marked [A], the four
(4) screws marked [B], the two (2) screws marked
[420], the two (2) screws marked [430] and the five
(5) screws marked [440]. The MAIN+SUB circuit
boards can then be removed. (Fig. 2, 3)
8
< Top view >
[470]
[470]
Mount bracket
Bind Head Tapping Screw-B(+バインド B タイト)A4.0X8 MFZN2BL (VC688800)
[70]:
[320]: Bind Head Tapping Screw-B(+バインド B タイト)A4.0X8 MFZN2BL (VC688800)
[345A]: Oval Head Screw(+丸皿小ネジ)4.0X8 MFZN2BL (VS153600)
[350]: Oval Head Screw(歯付座金付+丸皿小ネジ)B4.0X10 MFZN2BL (V6221000)
[470]: Bind Head Tapping Screw-B(+バインド B タイト)A4.0X8 MFZN2BL (VC688800)
(分解手順)
1.
トップカバー (所要時間:約 2 分)
1-1
[470]のネジ14 本を外して、 トップカバーを外しま
す。 (図 1)
2.
フロントパネル Ass'y (所要時間:約 5 分)
2-1
トップカバーを外します。 (1 項参照)
2-2
[345A]のネジ 8 本と[350]のネジ 2 本を外して、左
右のマウントブラケットを外します。 (図 1)
2-3
[70]のネジ 1本と[320]のネジ4 本を外して、 フロン
トパネル Ass'y を外します。 (図 1)
Top cover(トップカバー)
[70]
Fig .1 (図1)
3.
MAIN + SUB シート (所要時間:約 5 分)
3-1
トップカバーを外します。 (1 項参照)
3-2
[A]のネジ 4 本と[B]のネジ 4 本、 [420]のネジ 2 本、
[430]のネジ 2 本、 [440]のネジ 5 本を外して、MAIN
+ SUB シートを外します。 (図 2, 3)
< Right side view >
[470]
[470]
Mount bracket
[345A]
(マウントブラケット)
[350]
[320] x 4

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