Service Information
Accuphase Laboratory Inc.
Issued 2005-12-09
MODEL : E-550
機種
SUBJECT
；An input change cannot be made in a LINE BAL
position.
項目 ：LINE BAL位置にて入力切替出来ず
Details ; Balance Input Amp Ass'y; since the through hole of a connector K2/4 pin is poor,
it connects by a jumper wire.
詳 細; ﾊﾞﾗﾝｽ入力ｱﾝﾌﾟAss'y;ｺﾈｸﾀK2/4番ﾋﾟﾝのｽﾙｰﾎｰﾙ不良の為､ｼﾞｬﾝﾊﾟｰ線で対策 し ます 。
An applicable serial number as follows, D:L5Y001～080,E:L5Y081～099,U:L5Y100
該当ｼﾘｱﾙ番号 D:L5Y001～080,E:L5Y081～099,U:L5Y100
Jumper Wire
20mm
1pce
.
ｼﾞｬﾝﾊﾟｰ線
No.E-550-001
BALANCE INPUT AMP ASS'Y(712-0097-00)
ﾊﾞﾗﾝｽ入力ｱﾝﾌﾟAss'y
K2
K2
Add the jumper to between the K2 connector
of 4-pin and D1 cathode side.
K2ｺﾈｸﾀ4番ﾋﾟﾝとD1ﾀﾞｲｵｰﾄﾞｶｿｰﾄﾞ側にｼﾞｬﾝﾊﾟｰ線追加
IO RELAY ASS'Y(716-0731-00)
IO ﾘﾚｨ Ass'y
Parts side
部品面
Pattern side
ﾊﾟﾀｰﾝ面
Jumper Wire/ｼﾞｬﾝﾊﾟｰ線
IO RELAY ASS'Y (716-0731-00)
I/O ﾘﾚｨ Ass'y
①
Remove the IO Relay Ass'y from Top side.
IO ﾘﾚｨ Ass'yを上面から外します。
②
Next, Balance Input Amp Ass'y is removed.
See the Fig.2
次にBAL Input Amp Ass'yを外します
｡
図２参照
③
A jumper wire is wired as shown in Fig.3
in the pattern of Balance Input Ass'y.
ﾊﾞﾗﾝｽｲﾝﾌﾟｯﾄAss'yのﾊﾟﾀｰﾝ面で図3に示す様に
ｼﾞｬﾝﾊﾟｰ線を配線する｡
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