Denon DCD-CX3 - Disc Read Errors; Disc Does Not Rotate Troubleshooting; CD or DVD Check Process

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DCD-CX3
2.2. ディスク読めず
[0000]等の表示
(1) ディスク回転せず
(2)
CDorDVDチェック工程
Pick-up の発光を確認
1U-3788(SACDMODULEUNIT)
･ P.U.レーザー発光O.K.?
･ テストモードT2実行レーザー電流OK?
N.G.
(1) P.U.の半田ショートランドを確認
(2) TR101,TR105 周辺の半田付けを確認
(3) コネクタ接続を確認
･ [P.U.]-[1U-3788]FFC(CX241)
(4) [IC108] とその周辺の半田付けを確認
(5) [IC102] とその周辺の半田付けを確認
O.K.
スピンドルドライブ信号の確認
1U-3788(SACDMODULEUNIT)
･ [SPINDLE]:"H"level?
N.G.
(1) [IC108]85,90pin の半田付けを確認
(2) [SPINDLE][FGIN] 信号ライン周辺の半田付けを確認
(3) [IC102] とその周辺の半田付けを確認
O.K.
RF 信号の確認
1U-3788(SACDMODULEUNIT)
･ テストポイント(TP)の電圧確認
･ TP[AMON1][AMON2]:差動出力約 700mVp-p
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･ [IC157] とその周辺の半田付けを確認
O.K.
終了
終了
2.2. Does not Read Disc
[00 00] displayed etc.
(1) Disc does not Rotate.
(2) CD or DVD check process
Check the Emission of Pick-up.
1U-3788(SACD MODULE UNIT)
• Emission of P.U. laser O.K.?
• The test mode "T2" is executed.
Laser current O.K.?
N.G.
(1) Check Soldering of P.U.
• short-circuit?
(2) Check the circumference soldering of [TR101] and
[TR105].
(3) Check connector insertion.
• [P.U.]-[1U-3788] FFC(CX241)
(4) Check the soldering [IC108] and circumference
soldering of [IC108]
(5) Check the soldering [IC102] and circumference
soldering of [IC102]
O.K.
Check Spindle drive.
1U-3788(SACD MODULE UNIT)
• [SPINDLE]: "H" level?
N.G.
(1) Check soldering of [IC108]:85, 90pin
(2) Check the circumference soldering of
[SPINDLE], [FGIN] signal.
(3) Check the soldering [IC102] and circumference
soldering of [IC102]
O.K.
Check the RF signal.
1U-3788(SACD MODULE UNIT)
• Check the voltage of Test-Point (TP))
• TP[mAMON1] [AMON2]: differential output about
700mVp-p
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
• Check the circumference soldering of [IC157]
O.K.
END
END