Denon DVD-3930 Service Manual page 39

(2) SACD
Check connection Mecha UNIT
GU-3751-1(AUDIO (DIGITAL) UNIT)
• [CY331] output signal
O.K.
Check input signal: IC103
GU-3751-1(AUDIO (DIGITAL) UNIT)
• [IC103](EP2C8Q208C8N)
23(MCK), 87(BCK), 86(DFL), 84(DFR), 82(DC),
81(DSW), 80(DSL), 77(DSR), 76(DMIXL), 75(DMIXR)
O.K.
Check output signal: IC103
GU-3751-1(AUDIO (DIGITAL) UNIT)
• [IC103](EP2C8Q208C8N)
151(Rfs), 152(R64fs), 149(Tfs1), 150(T64fs1),
146(Tfs2), 147(T64fs2), 181(DFL), 180(DFR), 179(DC),
176(DSW), 175(DSL), 173(DSR)
O.K.
Check DSP operation
Refer
(1) CD, DVD-VIDEO/AUDIO
O.K.
Check DATA Signal -1
GU-3751-1(AUDIO (DIGITAL) UNIT)
• [IC103](EP2C8Q208C8N)
• [IC303](DSP): input
O.K.
Check DATA Signal -2
[SOURCE DIRECT: 100kHz]: DSD DIRECT Processing
GU-37 5 1-1( AUDIO (DIGITAL) UNIT )
• [IC303](DSP): output
121(DFL_O),122(DFR_O),126(DC_O),127(DSW_O)
130(DSL_O),131(DSR_O)pin
[SOURCE DIRECT: OFF/50kHz]: DSD to PCM Convert
Processing
Refer
• CD, DVD-VIDEO/AUDIO Check DATA Signal-3~
O.K.
Check DATA Signal -3
GU-3751-1(AUDIO (DIGITAL) UNIT)
• [IC103](EP2C8Q208C8N):
output to DAC(MIXL/MIXR/FL/FR/C/SW/SL/SR)
4~6, 8, 10~15, 30, 31, 33pin
GU-3751-2(AUDIO/MIX UNIT)
• [IC702](DAC for MIXL), [IC707](DAC for MIXR),
[IC401](DAC for FL/FR), [IC406](DAC for C/SW),
[IC411](DAC for SL/SR): input
4~7pin(LRCK=1fs, BCK=64fs, DATA,MCK=256fs)
O.K.
Check DAC output ~
Refer
• CD, DVD-VIDEO/AUDIO
O.K.
END
Check Soldering, FFC cable
• [CY331]
N.G.
• [CX331]: GU-3749
• FFC cable, insert condition
Check Soldering.
N.G.
• IC103
Check Soldering.
N.G.
• IC103
• 3.3V
Check Soldering.
N.G.
• R187~192, R310~315
Check Soldering.
N.G.
• R316~322
Check Soldering.
• CX125, CY125, CX126, CY126,
N.G.
CX127, CY127, CX129, CY129
(GU-3751-1 to GU-3751-2 or GU-3751-3)
(2) SACD
メカユニットとの接続確認
GU-3751-1(AUDIO (DIGITAL) UNIT)
･ [CY331] 出力信号の確認
O.K.
IC103 の入力信号の確認
GU-3751-1(AUDIO (DIGITAL) UNIT)
･ [IC103](EP2C8Q208C8N)
23(MCK), 87(BCK), 86(DFL), 84(DFR), 82(DC),
81(DSW), 80(DSL), 77(DSR), 76(DMIXL), 75(DMIXR)
O.K.
IC103 の出力信号の確認
GU-3751-1(AUDIO (DIGITAL) UNIT)
･ [IC103](EP2C8Q208C8N),
151(Rfs), 152(R64fs), 149(Tfs1), 150(T64fs1),
146(Tfs2), 147(T64fs2), 181(DFL), 180(DFR), 179(DC),
176(DSW), 175(DSL), 173(DSR)
O.K.
DSP 動作の確認
(1) CD, DVD-VIDEO/AUDIO 参照
O.K.
データ確認 -1
GU-37 1-1( )
5 AUDIO (DIGITAL) UNIT
･ [IC103](EP2C8Q208C8N)
･ [IC303](DSP): input
O.K.
データ確認 -2
[SOURCE DIRECT: 100kHz]: DSD DIRECT Processing
GU-3751-1(AUDIO (DIGITAL) UNIT)
･ [IC303](DSP): output
121(DFL_O), 122(DFR_O), 126(DC_O), 127(DSW_O)
130(DSL_O), 131(DSR_O)pin の確認
[SOURCE DIRECT: OFF/50kHz]: DSD to PCM Convert
Processing
･ 以降 CD, DVD-VIDEO/AUDIO データ確認 -3 参照
O.K.
データ確認 -3
GU-3751-1(AUDIO (DIGITAL) UNIT)
･ [IC103](EP2C8Q208C8N):
output to DAC(MIXL/MIXR, FL/FR, C/SW, SL/SR)
4 ∼ 6, 8, 10 ∼ 15, 30, 31, 33pin
GU-3751-2(AUDIO/MIX UNIT)/GU-3751-3(AUDIO/5.1
UNIT)
･ [IC702](DAC for MIXL), [IC707](DAC for MIXR),
[IC401](DAC for FL/FR), [IC406](DAC for C/SW),
･ [IC411](DAC for SL/SR): input
･ 4 ∼ 7pin(DATA-1, DATA-2, BCK="L", MCK=64fs)
O.K.
DAC 出力確認∼
(1) CD, DVD-VIDEO/AUDIO 参照
O.K.
終了
39
DVD-3930/3930CI
半田付け、FFC ケーブルを確認
･ [CY331]
N.G.
･ [CX331]: GU-3749
･ FFC ケーブル、挿入状態の確認
半田付けを確認
N.G.
･ IC103
半田付けを確認
N.G.
･ IC103
･ 3.3V
半田付けを確認
N.G.
･ R187 ∼ 192, R310 ∼ 315 の確認
半田付けを確認
N.G.
･ R316 ∼ 322
半田付けを確認
･ CX125, CY125, CX126, CY126,
N.G.
CX127, CY127, CX129, CY129
(GU-3751-1 to GU-3751-2 or GU-3751-3)