Yamaha Electone HS-5 Servis Kılavuzu - Sayfa 10

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Yamaha Electone HS-5 Servis Kılavuzu
HS8/HS7/HS5
5-2
HS8, HS7 :
Remove the fi ve (5) screws marked [300A]. The AMP
circuit board can then be removed together with the
heatsink 8B. (Fig. 5-1)
*
When installing the AMP circuit board with the
heatsink 8B, first tighten the two (2) priority screws
in order as shown in Fig. 5-1.
*
Be careful not to drop it.
HS5 :
Remove the three (3) screws marked [300B]. The AMP
circuit board can then be removed together with the
heatsink 5B. (Fig. 5-2)
5-3
Remove the two (2) screws marked [80] and the four
(4) screws marked [130]. The heatsink 8B (HS8, HS7)
/ 5B (HS5) can then be removed from the AMP circuit
board. (Fig. 6)
5-4
Unsolder the leads of the AMP circuit board. The
AMP circuit board and IC (POWER AMP) can then be
separated. (Fig. 6)
Rear view (背面から見た図)
Priority screw (2nd)
(優先ネジ (2) )
[300A]
[300A]
Priority screw (1st)
(優先ネジ (1) )
AMP assembly
(アンプAss'y)
10
<HS8, HS7>
Fig. 5-1 ( 図5-1)
[130] x 2
AMP
Soldering
(はんだ付け)
Bracket 8B
(ブラケッ ト8B)
[80]
IC (POWER AMP 68W)
5-2 
HS8, HS7:
 
[300A]のネジ 5 本を外し、ヒートシンク 8B と共
に AMP シートを取り外します。 (図 5-1)
  ※ 
ヒートシンク 8B 付き AMP シートを取り付けるときに
は、優先ネジ 2 本を図に示す順で先に締めてください。
(図 5-1)
  ※ 
落下させない様に注意してください。
 
HS5:
 
[300B]のネジ 3 本を外し、ヒートシンク 5B と共
に AMP シートを取り外します。 (図 5-2)
5-3 
[80] の ネ ジ 2 本 と[130] の ネ ジ 4 本 を 外 し、
AMP シートからヒートシンク 8B (HS8, HS7) / 5B 
(HS5) を外します。 (図 6)  
5-4 
AMP シートのハンダ付け部からハンダを取り除
き、 AMP シートと IC (POWER AMP) を別けます。
(図 6)
[300B]
AMP assembly
(アンプAss'y)
[130] x 2
Soldering
HS8, HS7 :
(はんだ付け)
Heatsink 8B
(ヒートシンク8B)
HS5 :
Heatsink 5B
(ヒートシンク5B)
[80]
Bracket 8A
(ブラケッ ト8A)
Fig. 6 ( 図6)
<HS5>
Fig. 5-2 ( 図5-2)