Yamaha SB168-ES Service Manual page 15

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10.
DA Circuit Board
(Time required: About 12 minutes)
10-1
Remove the sheet support. (See procedure 9.)
10-2
Remove the sixteen (16) screws marked [510], two
(2) screws marked [520] and two (2) spacer hexagon
marked [570]. The DA circuit board can then be
removed. (Fig. 6)
11.
HAAD2 Circuit Board (ch 1 – ch 8)
(Time required: About 12 minutes)
11-1
Remove the sheet support. (See procedure 9.)
11-2
Remove the sixteen (16) screws marked [410] and two
(2) screws marked [420]. The HAAD2 circuit board
(ch 1 – ch 8) can then be removed. (Fig. 6)
• Top view
[420]
[470]
• Front view
LD1
[410]
HAAD2
(ch 1 – ch 8)
[410]: SCREW TP #B +BOND (Bタイト+BOND) 3.0X8 MFZN2B3 (WE774100)
[420]: BIND HEAD TAPPING SCREW-S (Sタイト+BIND) 3.0X6 MFZN2B3 (WE87780R)
[470]: BIND HEAD TAPPING SCREW-S (Sタイト+BIND) 3.0X6 MFZN2B3 (WE87780R)
[510]: SCREW TP #B +BOND (Bタイト+BOND) 3.0X8 MFZN2B3 (WE774100)
[520]: BIND HEAD TAPPING SCREW-S (Sタイト+BIND) 3.0X6 MFZN2B3 (WE87780R)
[570]: SPACER HEXAGON (六角スペーサーM3) L=45 (WP898900)
HAAD2
(ch 1 – ch 8)
LD1
[470]
Fig. 6 (図 6)
10.
DA シート
(所要時間:約 12 分)
10-1
シートサポートを外します。 (9 項参照)
10-2
[510] のネジ 16 本と [520] のネジ 2 本、[570] の六
角スペーサー 2 本を外して、 DA シートを外します。
(図 6)
11.
HAAD2 シート(ch 1 ‒ ch 8)
(所要時間:約 12 分)
11-1
シートサポートを外します。 (9 項参照)
11-2
[410] のネジ 16 本と [420] のネジ 2 本を外して、
HAAD2 シート(ch 1 ‒ ch 8)を外します。 (図 6)
DA
[510]
SB168-ES
[520], [570]
[520]
DA
15

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