Denon DCD-CX3 - SACD Check Process

32
DCD-CX3
(3) SACDチェック工程
電源電圧確認
1U-3788(SACDMODULEUNIT)
･ [IC502]
+3.3D1,+2.5D1OK?
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･ [IC503](BA25BC0FP)
O.K.
発振波形確認
1U-3788(SACDMODULEUNIT)
･ [IC502](CXD2753):11pin
33.87MHz(3.3V)OK?
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･ [IC502]:11pin,R540
O.K.
RESET 信号の確認
1U-3788(SACDMODULEUNIT)
･［IC502]:9pin
"H"levelOK?
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･R538
O.K.
バスラインの確認
1U-3788(SACDMODULEUNIT)
･ [IC502] と [IC501](SDRAM) 間の
アドレス、データバスの確認
"H"⇔ "L"切替
N.G.
半田付けを確認
･ アドレス、データ、制御信号
[DQ0-7],[DMA0-11],[DCLK],[DCKE],[DWE],
[NCAS],[NRAS]
O.K.
データラインの確認
1U-3788(SACDMODULEUNIT)
･
[SD0-7],[XSAC],[XSHD2],[SDCK],[SDEF],[XSRQ ]
"H"⇔ "L"切替
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･ [IC502]:164-176pin,R271
O.K.
ウォーターマーク用信号の確認
1U-3788(SACDMODULEUNIT)
･ PSPMCK,PSPWAD1-PSPWAD7
"H"⇔ "L"切替
･ テストモードTE実行190 以上？
N.G.
半田付けを確認
1U-3788(SACDMODULEUNIT)
･ [IC502]:1,23,117-120,111-114pin
R539,R543-551
O.K.
終了
(3) SACD check process
Check Power Supply Voltages.
1U-3788(SACD MODULE UNIT)
• [IC502]
+3.3_D1, +2.5_D1 OK?
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
• [IC503](BA25BC0FP)
O.K.
Check Oscillation waveform.
1U-3788(SACD MODULE UNIT)
• [IC502](CXD2753): 11pin
33.87MHz(3.3V) OK?
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
• [IC502]: 11pin, R540
O.K.
Check Reset signal.
1U-3788(SACD MODULE UNIT)
• [IC502]: 9pin
"H" level OK?
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
•R538
O.K.
Check Bus Line.
1U-3788(SACD MODULE UNIT)
Check Address, Data Bus between
[IC502] and [IC501](SDRAM)
"H" ⇔ "L" alternate?
N.G.
Check Soldering.
• Address, Data Bus, Control Signal.
[DQ0-7], [D_MA0-11], [DCLK], [DCKE], [DWE],
[DCAS], [DRAS]
O.K.
Check Data Line.
1U-3788(SACD MODULE UNIT)
• [SD0-7], [XSAC], [XSHD2], [SDCK], [SDEF], [XSRQ]
"H" ⇔ "L" alternate?
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
• [IC502]:164-176pin, R271
O.K.
Check signal for Water Mark.
1U-3788(SACD MODULE UNIT)
• PSP_MCK, PSP_WAD1-PSP_WAD7
"H" ⇔ "L" alternate?
• The test mode "TE" is executed. 190 over?
N.G.
Check Soldering.
1U-3788(SACD MODULE UNIT)
• [IC502]: 1, 23, 117-120, 111-114pin
R539, R543-551
O.K.
END