Yamaha MSP5A Service Manual page 8

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MSP5A
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4.
Power Transformer
(Time required: About 3 minutes)
4-1
Remove the amplifier assembly. (See procedure 2)
4-2
Remove the four (4) screws marked [A150B]. The
power transformer can then be removed. (Photo. 2)
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5.
MAIN 1/5, 2/5, 3/5 Circuit Boards
(Time required: About 5 minutes each)
5-1
Remove the amplifier assembly. (See procedure 2)
5-2
Remove the three (3) screws marked [A150A] and
screw marked [A151A]. The power transformer and
base can then be removed. (Photo. 2)
5-3
MAIN 1/5, 2/5 Circuit Boards:
5-3-1 Remove the two (2) screws marked [A160] and the
four (4) screws marked [A170]. The MAIN 1/5, 2/5
circuit boards can then be removed. (Photo. 3)
5-4
MAIN 3/5 Circuit Board:
5-4-1 Remove the four (4) screws marked [A180A]. The
shield sheet can then be removed. (Photo.3, 4)
5-4-2 Remove the three (3) screws marked [A180B], the
nut marked [A190], the washer marked [A200]. The
MAIN 3/5 circuit board can then be removed.
(Photo.3, 4)
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• Front view
[A150B]
[A150A]
Base
(トランス台)
[A151A]
[A150B]
(+バインドBタイト)
[A150]: Bind Head Tapping Screw-B
[A151]: Bonding Tapping Screw-B
(ボンディングBタイト)
Photo.2 (写真2)
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4.
トランス
(所要時間:約 3 分)
4-1
アンプ Ass'y を外します。 (2項参照)
4-2
[A150B]のネジ4本を外し、トランスを外します。
(写真 2)
[A150B]
[A150A]
[A150B]
Power transformer ( トランス)
4.0X10 MFZN2BL (EP600240)
4.0X10 MFZN2Y (AAX52450)
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5.
MAIN 1/5、2/5、3/5 シート
(所要時間:各約 5 分)
5-1
アンプ Ass'y を外します。 (2 項参照)
5-2
[A150A]のネジ3本と[A151A]のネジ1本を外し、 ト
ランスとトランス台を外します。 (写真 2)
5-3
MAIN 1/5, 2/5 シート:
5-3-1
[A160]のネジ2本と[A170]のネジ4本を外し、 MAIN
1/5、2/5 シートを外します。 (写真 3)
5-4
MAIN 3/5 シート:
5-4-1
[A180A]のネジ4本を外し、 シールド板を外します。
(写真 3、4)
5-4-2
[A180B]のネジ 3 本と[A190]の特殊六角ナットと
[A200]の特殊座金を外し、MAIN 3/5 シートを外し
ます。 (写真 3、4)
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