Accuphase DP-77 - Display Information

Accuphase Laboratory Inc.
Issued 2003-12-10
MODEL : DP-77
機種
SUBJECT :(1)
To prevent the output becomes nothing in unusual
(2) To be improve the reliability of lock in at external in
項目 :電源オン時、出力無しとなる可能性を防止する
:外部入力時、ロック外れになるのを防止する 。
Details ;(1).At the time of a power supply on,the IC8 of DSP Ass'y carries out incorrect
operation,and output relay does not turn on.
Countermeasure is follows,remove the R5 (22
Ω
) and add the jumper to both end
of R5 that located on DSP Ass'y (724-0055-00).
(2) An input is put into a coaxial input or an optical input, An output may be
interrupted when it is made to operate.
Countermeasure as follows, change the resistor value of R105 & R108 from 150
Ω
to 330
Ω
that located on DSP Ass'y(724-0055-00).
詳細; POWER ON時 DSP Ass'y内IC8 CS8427が誤動作し 出力ﾘﾚｲがONしない。
対策は DSP Ass'y(724-0055-00) R5(22Ω)削除しｼﾞｬﾝﾊﾟｰする。
; COAXおよびOPTに入力をいれ、出力すると音がとぎれる場合があります。
対策はDSP Ass'y(724-0055-00)内抵抗 R105,108(150Ω→330Ω)の定数を
変更します。
－１１－
DSP Ass'y (724-0055-00)
Jumper R5 Jumper Lead 1pcs.
Resistor R105,108 RD142CA331J(330Ω) 2pcs.
(1)Remove
the DSP Ass'y
本体からDSP Ass'yを外す。
(2)Replace
the resistors and add the jumper wire.
DSP Ass'y内R5の抵抗
,
削除しジャンパーに変更します。
R105,108の抵抗を330Ωに変更します 。
(RD142CA151J→RD142CA331J)
Jumper
R5
R105
R108
150
Ω→
330
Ω
Service Information
An applicable serial number as follows, B3Y201 to B3Y300
該当 ｼﾘｱﾙ番号は B3Y201～ B3Y300
DSP
Assembly
DSP
Ass'y
(724-0055-00)
No. DP-77-001