Denon D RCD-M37, Service Manual

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RCD-M37 / RCD-M37DAB / D-E500 / D-M37
Check Digital Audio Data and Clock for DAC Check Soldering.
INPUT B'D N.G 䊶 IC24 on MCU_CD_USB B'D
[IC15]:2,3,4pin
䊶
WN12 2,3,4pin on MCU_CD_USB B'D
BIK,STI,LRK BICK,SDTI,LRCK
䊶 WF12 on INPUT B'D
O.K.
Check Analog Audio Data output from DAC
INPUT B'D
N.G Check Soldering.
䊶 [IC15] output 9,10,11,12pin R-,R+,L-,L+ 䊶 [IC15]:9,10,11,12pin on INPUT B'D
䊶
[IC17] output 1,7pin
䊶
[IC17] on INPUT B'D.
O.K.
Check Analog Audio Data input for FUNCTION IC
INPUT B'D
N.G Check Soldering.
䊶 [IC11] input 23,24pin 䊶 [IC11] on INPUT B'D
㩷 F_CD_USB_L,FCD_USB_R
O.K.
㪁
Check control signal for FUNCTION IC Check Soldering.
INPUT B'D N.G 䊶 IC24 on MCU_CD_USB B'D
䊶 [IC11]:29,30,31pin 䊶 WF11 6,7,8pin on INPUT B'D
D_DATA,C_CLK,V_CE V_DATA,V_CLK_VCE
䊶
WF11 on MCU_CD_USB B'D
O.K.
Check Analog Audio Data output from FUNCTION & Check Soldering.
PRE AMP N.G 䊶 IC11 on INPUT B'D
䊶
[IC11]:49, 50pin Lout,Rout
䊶
IC12 on INPUT B'D
䊶 [IC12]:1,7 pin
O.K.
Check audio function mute signal. Check Soldering.
INPUT B'D N.G
䊶
Q106,112, on INPUT B'D
䊶 [Q103,104]:"L"level O.K.? 䊶 WF11 10pin F_MU on INPUT B'D
䊶 IC24,Q214 on MCU_CD_USB B'D
䊶
WN11 on MCU_CD_USB B'D
O.K.
Check Analog Audio Data input for POWER AMP Check Soldering.
AMP B'D N.G 䊶 CN72 6,8pin on INPUT B'D
䊶
[IC71]:1,18pin VOL_L,VOL_R
䊶
BN72 on AMP B'D
O.K.
Check SPEAKER RELAY control signal Check Soldering.
SPEAKER B'D N.G 䊶 BN97 10pin on SPEAKER B'D
䊶 D708 ANODE "L"level O.K.? 䊶 CN97 on AMP B'D
䊶
Q709, Q710 OK? on AMP B'D
㩷 䊶
BN71 3pin SP_ON on AMPB'D
㩷 䊶 CN7, IC24 on MCU_CD_USB B'D
O.K.
Check Analog Audio Data output for POWER AMP Check Soldering.
to SPEAKER. N.G 䊶 [IC71]:10,13pin
AMP B'D
䊶
CN97 1,4pin on AMP B'D
䊶
[IC71]:10,13pin Lch,RCH
㪪㪧㪜㪘㪢㪜㪩㩷㪙㩾㪛 䊶 BN97 on SPEAKER B'D
䊶 JK71
O.K.
END
DAC用ﾃﾞｼﾞﾀﾙｵｰﾃﾞｨｵﾃﾞｰﾀとｸﾛｯｸの確認 半田付けを確認
INPUT B'D N.G ・ IC24 on MCU̲CD̲USB B'D
[IC15]:2,3,4pin ・ WN12 2,3,4pin on MCU̲CD̲USB B'D
BIK,STI,LRK BICK,SDTI,LRCK
・ WF12 on INPUT B'D
O.K.
DACからAMPへのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ出力確認
INPUT B'D
N.G 半田付けを確認
・ [IC15]:9,10,11,12pin on INPUT B'D ・ [I15]:9,10,11,12pin on INPUT B'D
・ [IC17] output 1,7pin ・ [IC17] on INPUT B'D.
O.K.
ﾌｧﾝｸｼｮﾝICへのｱﾅﾛｸﾞﾃﾞｰﾀ入力の確認
INPUT B'D
N.G 半田付けを確認
・ [IC11] input 23,24pin ・ [IC11] on INPUT B'D
F̲CD̲USB̲L,FCD̲USB̲R
O.K.
＊ ﾌｧｸｼｮﾝICの制御信号の確認 半田付けを確認
INPUT B'D N.G ・ IC24 on MCU̲CD̲USB B'D
・ [IC11]:29,30,31pin ・ WF11 6,7,8pin on INPUT B'D
D̲DATA,C̲CLK,V̲CE V̲DATA,V̲CLK̲VCE
・ WF11 on MCU̲CD̲USB B'D
O.K.
ﾌｧｸｼｮﾝICとPREAMPのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ出力確認 半田付けを確認
・ [IC11]:49, 50pin Lout,Rout N.G ・ IC11 on INPUT B'D
・ [IC12]:1,7 pin ・ IC12 on INPUT B'D
O.K.
ｵｰﾃﾞｨｵﾐｭｰﾄ信号の確認 半田付けを確認
INPUT B'D N.G ・ Q106,112, on INPUT B'D
・ [Q103,104]:"L"level O.K.? ・ WF11 10pin F̲MU on INPUT B'D
・ IC24,Q214 on MCU̲CD̲USB B'D
・ WN11 on MCU̲CD̲USB B'D
O.K.
POWER AMPへのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ入力確認 半田付けを確認
AMP B'D N.G ・ CN72 6,8pin on INPUT B'D
・ [IC71]:1,18pin VOL̲L,VOL̲R
・ BN72 on AMP B'D
O.K.
ｽﾋﾟｰｶｰﾘﾚｲ制御信号の確認 半田付けを確認
SPEAKER B'D N.G ・ BN97 10pin on SPEAKER B'D
・ D708 ANODE "L"level O.K.? ・ CN97 on AMP B'D
・ Q709, Q710 OK? on AMP B'D
・ BN71 3pin SP̲ON on AMPB'D
・ CN7, IC24 on MCU̲CD̲USB B'D
O.K.
POWER AMPからSPEAKERへのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ 半田付けを確認
出力確認。 N.G ・ [IC71]:10,13pin
AMP B'D ・ CN97 1,4pin on AMP B'D
・ [IC71]:10,13pin Lch,RCH
SPEAKER B'D ・ BN97 on SPEAKER B'D
・ JK71
O.K.
終了