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Yamaha QL5 - Page 25

Yamaha QL5
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QL5/QL1
25
A-7. HAAD (1/4 – 4/4) Circuit Board
A-7-1
Remove the side pad assembly L and R. (See Procedure 1)
A-7-2 Fix the control panel L assembly. (See procedure 2)
A-7-3 HAAD (1/4) Circuit Board
(Time required: About 10 minutes)
A-7-3-1 Remove the sixteen (16) screws marked [820A] and
two (2) screws marked [830A]. The HAAD (1/4)
circuit board can then be removed. (Fig. 6)
* When installing the HAAD (1/4) circuit board, first
tighten the screw marked [820A] and then tighten
the screws marked [830A]. (Fig. 6)
A-7-4 HAAD (2/4) Circuit Board
(Time required: About 13 minutes)
A-7-4-1 Remove the HAAD (1/4) circuit board.
(See procedure A-7-3)
A-7-4-2 Remove the sixteen (16) screws marked [630A] and
two (2) screws marked [700A]. The HAAD angle L
and HAAD (2/4) circuit board can then be removed.
(Fig. 6)
A-7-4-3 Remove the two (2) screws marked [700B]. The
HAAD angle L can then be removed. (Fig. 6)
* When installing the HAAD (2/4) sheet, tighten the
screws marked [630A] first and then tighten the
screws marked [700A] and [700B] in the order
q
r
shown in Fig. 6
A-7-5 HAAD (3/4) Circuit Board
(Time required: About 10 minutes)
A-7-5-1 Remove the sixteen (16) screws marked [820B] and
two (2) screws marked [830B]. The HAAD (3/4)
circuit board can then be removed. (Fig. 6)
* When installing the HAAD (3/4) circuit board, first
tighten the screw marked [820B] and then tighten
the screws marked [830B]. (Fig. 6)
A-7-6 HAAD (4/4) Circuit Board
(Time required: About 13 minutes)
A-7-6-1 Remove the HAAD (3/4) circuit board.
(See procedure A-7-5)
A-7-6-2 Remove the sixteen (16) screws marked [630B] and
two (2) screws marked [670A]. The HAAD angle and
HAAD (4/4) circuit board can then be removed.
(Fig. 6)
A-7-6-3 Remove the two (2) screws marked [670B]. The
HAAD angle can then be removed. (Fig. 6)
* When installing the HAAD (4/4) sheet, tighten the
screws marked [630B] first and then tighten the
screws marked [670A] and [670B] in the order
A
D
shown in Fig. 6
* The circuit boards from HAAD (1/4) – HAAD (4/4)
are used for the following channels:
· HAAD (1/4) circuit board: INPUT CH 1 – 8
· HAAD (2/4) circuit board: INPUT CH 9 – 16
· HAAD (3/4) circuit board: INPUT CH 17 – 24
· HAAD (4/4) circuit board: INPUT CH 25 – 32
A-7. HAAD(1/4 4/4)シート
A-7-1 サイドパッド Ass'yL,R を外します。(1 項参照)
A-7-2 コンパネ LAss'y を固定します。(2 項参照)
A-7-3 HAAD(1/4)シート
(所要時間:約 10 分)
A-7-3-1[820A] のネジ 16 本と [830A] のネジ 2 本を外して、
HAAD(1/4)シートを外します。(図 6)
※ HAAD(1/4)シートを取り付ける際は、[820A]
ジを締めてから[830A] のネジを締めてください。(図 6)
A-7-4 HAAD(2/4)シート
(所要時間:約 13 分)
A-7-4-1HAAD(1/4)シートを外します。(A-7-3 項参照)
A-7-4-2[630A] のネジ 16 本と [700A] のネジ 2 本を外して、
HAAD L HAAD(2/4)シートを外
します。(図 6)
A-7-4-3[700B] 2 本を外して、HAAD アングル L
を外します。(図 6)
※ HAAD(2/4)シートを取り付ける際は、[630A]
ジを締めてから、図 6 に示す q r [700A]
[700B] のネジを締めてください。
A-7-5 HAAD(3/4)シート
(所要時間:約 10 分)
A-7-5-1[820B] のネジ 16 本と [830B] のネジ 2 本を外して、
HAAD(3/4)シートを外します。(図 6)
※ HAAD(3/4)シートを取り付ける際は、[820B]
ジを締めてから[830B] のネジを締めてください。(図 6)
A-7-6 HAAD(4/4)シート
(所要時間:約 13 分)
A-7-6-1HAAD(3/4)シートを外します。(A-7-5 項参照)
A-7-6-2[630B] のネジ 16 本と [670A] のネジ 2 本を外して、
HAAD アングルと HAAD(4/4)シートを外し
ます。(図 6)
A-7-6-3[670B] 2 本を外して、HAAD アングルを
外します。(図 6)
※ HAAD(4/4)シートを取り付ける際は、[630B]
ジを締めてから、図 6 に示す
A
D
[670A]
[670B] のネジを締めてください。
※ HAAD(1/4)シート〜 HAAD(4/4)シートは、以下
のチャンネルで使用されています。
・HAAD(1/4)シート:INPUTCH1 8
・HAAD(2/4)シート:INPUTCH9 16
・HAAD(3/4)シート:INPUTCH17 24
・HAAD(4/4)シート:INPUTCH25 32

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