Circuit Boards And Assembles - Yamaha Clavinova CVP-405 Service Manual

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CVP-405/CVP-405PE/CVP-405PM
5.
Circuit Boards and Assembles (Main
Unit Section)
(Time required: About 5 minutes each)
5-1.
Remove the top board assembly. (See procedure 4)
5-2.
Slide the key cover rearward, remove its guide pin
of the back key cover from the opening for the arm.
Then the back key cover can be opened. (Fig. 5)
Back key cover
(回転蓋(後))
5-3.
Each circuit board and assembly can be removed by
removing its fi xing screws as listed below.
Circuit board and Assembly
PK Connector (PK コネクタ)
PJK
DM
LAN Assembly
LANH
Jack Assembly
*1
MA Cover (U model only)
MA80S Assembly
FU Cover (U model only)
FU60 Assembly
EQ
NET1
Power Transformer
(電源トランス)
Crosspiece (棚板桟)
*1
To remove the jack assembly, be sure to remove the LAN
assembly fi rst.
14
Guide pin
(ガイドピン)
(Fig. 5)(図 5)
Ref. No.
70A
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
23c
Bind Head Tapping Screw-B (B タイト+ BIND) 3.0x8 MFZN2B3 (WE774400)
76A
Bind Head Tapping Screw-B (B タイト+ BIND) 3.0x8 MFZN2W3 (WE774300)
70B
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
24c
Bind Head Tapping Screw-B (B タイト+ BIND) 3.0x8 MFZN2W3 (WE774300)
70C
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
109A
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
70D
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
109B
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
70E
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x11 MFZN2W3 (WF831100)
79A
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x20 MFZN2W3 (WE971500)
79B
Bind Head Tapping Screw-1 (TP#1 + BIND) 3.5x20 MFZN2W3 (WE971500)
78
Bind Head Screw ( 小ネジ+ BIND) 4.0x12 MFZN2W3 (WE968400)
120A
Flat Wsher ( 平座みがき丸 ) 4.0x12x1.0 MFZN2W3 (WF578800) (U model only)
98
Bind Head Tapping Screw-B (B タイト+ BIND) 3.0x12 MFZN2W3 (WE987400)
5.
基板とアッセンブリ (メインユニッ ト部)
(所要時間:各約 5 分)
5-1.
屋根 Ass' y を外します。 (4 項参照)
5-2.
回転蓋を後方へスライ ドし、回転蓋 (後)のガイ ドピ
ンを腕木の抜き口から出して、回転蓋 (後)を開けま
す。 (図 5)
Back key cover
(回転蓋(後))
5-3.
次のネジを外すことにより、基板・ ア ッセンブリを外す
ことができます。
Screw
*1
ジャック Ass' y を外すときは、先に LAN Ass' y を外します。
Opening for the arm
Arm
(抜け口)
(腕木)
QTY Fig.
2
2
6
2
4
3
2
2
2
2
4
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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