Accuphase C-2810 - Power Supply ON Noise Prevention

Accuphase Laboratory Inc.
Issued 2007-4-5
MODEL : C-2810
SUBJECT : Noise prevention which is a power supply ON in the
state of a main volume raising
項 目 : ﾒｲﾝﾎﾞﾘｭｰﾑ上げた状態での電源ON時のノイズ防止
No. C-2810-005
Details ; The shocking noise when turning on a power supply in the state where
the position of volume is going up is prevented.
詳 細 ; ﾎﾞﾘｭｰﾑの位置を上げた状態で電源をONした時のショックノイズを防止する。
Service Information
Countermeasure level / 対策ﾚﾍﾞﾙ : L=
23
Lch
.
IV Ass'y is removed from a main part, and 6-7pin
and 10-11 pin of IC2 are short-circuited with
solder. Both channels performs this.
本体よりIV Ass'yを外し IC2 の6-7pinと10-11 pinを
ﾊﾝﾀﾞにてｼｮｰﾄします｡これを両ﾁｬﾝﾈﾙ行います。
*Solder uses Pb-free solder
ﾊﾝﾀﾞは鉛ﾌﾘｰを使います
IC2
IV Assembly (713-0019-00)
Step/手順
It carries out after serial number H7Y401～
ｼﾘｱﾙ番号
;H7Y401
～以降は実施されています。
Solder between
pin to pin
()
ﾋﾟﾝ間をﾊﾝﾀﾞする
Rch
.
6-pin
7-pin
11-pin
10-pin
Top View
/
上面
－２１－