Am/Fm Tuner-In; Portable-In (Front-In) - Denon RCD-M37 Service Manual

(2) AM/FM TUNER-in

Check Power Supply Voltages
for PREAMP & POWER AMP.
INPUT B'D :+12V,-12V
AMP B'D : +22.8V,-22.8V
O.K.
Check Power Supply Voltages for AM/FM TUNER.
MCU_CD_USB B'D
WN21 4pin +12V
O.K.
Check Analog Audio Data output from TUNER PACK
MCU_CD_USB B'D
[TUNER PACK] output and WN 21 1,3pin TU_L, TU_R
[IC11]:25,26pin
O.K.
Check Digital Audio Data output from FUNCTION IC
INPUT B'D
[IC11]:49,50pin LOUT,ROUT
O.K.
to CD PLAY * Mark
(3) Portable-in(Front-in)
Check Analog Audio Data output from Prtable-in
FRONT B'D
[Portable-in] output
BN82 1,3pin POR_L.POR_R
O.K.
Check Analog Audio Data input for FUNCTION IC
INPUT B'D
[I11]:21,22pin PORT_L,PORT_R
O.K.
Check Analog Audio Data output from FUNCTION IC
INPUT B'D
[I11]:49.50pin LOUT,ROUT
O.K.
to CD PLAY * Mark
Check Soldering.
N.G CN72 1,5pin +12V,-12V on INPUT B'D
CN82 5,8pin -22.8V,+22.8V on AMP B'D
POWER B'D
SPEAKER B'D
N.G Check Soldering.
CN98 9pin +12V on MCU_CD_USB B'D
POWER B'D,
Check Soldering.
N.G WN21 1,3 pin TU_L,TU_R on MCU_CD_USB B'D
WN11 12,14pin TU_R,TU_L on MCU_CD_USB_B'D
WF11 12,14pin F_TU_R,F_TU_L on INPUT B'D
C122,123 on INPUT B'D
N.G Check Soldering.
[IC11] on INPUT B'D
N.G Check Soldering.
JK52,on FRONT B'D
BN82 on FRONT B'D
Check Soldering.
N.G CN72 2,4pin PORT_L<PORT_R on INPUT B'D
BN72 on AMP B'D
CN82 on AMP B'D
N.G Check Soldering.
[IC11] on INPUT B'DMAIN UNIT.
RCD-M37 / RCD-M37DAB / D-E500 / D-M37
(2) AM/FM TUNER入力
PREANM, POWER AMP用電源電圧確認
・ INPUT B'D :+12V,-12V
・ AMP B'D : +22.8V,-22.8V
O.K.
AM/FMﾁｭｰﾅｰ用電源電圧確認
MCU_CD_USB B'D
・ WN21 4pin +12V
O.K.
ﾁｭｰﾅｰﾊﾟｯｸからのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ出力確認
MCU_CD_USB B'D
・ [TUNER PACK] output and WN 21 1,3pin TU_L, TU_R
INPUT B'D
・ [IC11]:25,26pin
O.K.
CODECからBFへのﾃﾞｼﾞﾀﾙｵｰﾃﾞｨｵﾃﾞｰﾀの確認
INPUT B'D
・ [IC11]:49,50pin LOUT,ROUT
O.K.
CD再生の*マークへ
(3) Portable入力(Front入力)
ﾎﾟｰﾀﾌﾞﾙ入力からのｱﾅﾛｸﾞｵｰﾃﾞｨｵﾃﾞｰﾀ出力確認
FRONT B'D
・ [Portable-in] output
・ BN82 1,3pin POR_L.POR_R
O.K.
ﾌｧﾝｸｼｮﾝICからのｵｰﾃﾞｨｵﾃﾞｰﾀの確認
INPUT B'D
・ [I11]:21,22pin PORT_L,PORT_R
O.K.
ﾌｧﾝｸｼｮﾝICからのｵｰﾃﾞｨｵﾃﾞｰﾀの確認
INPUT B'D
・ [I11]:49.50pin LOUT,ROUT
O.K.
CD再生の*マークへ
26
半田付けを確認
N.G ・ CN72 1,5pin +12V,-12V on INPUT B'D
・ CN82 5,8pin -22.8V,+22.8V on AMP B'D
・ POWER B'D
・ SPEAKER B'D
N.G 半田付けを確認
・ CN98 9pin +12V on MCU_CD_USB B'D
・ POWER B'D,
半田付けを確認
N.G ・ WN21 1,3 pin TU_L,TU_R on MCU_CD_USB B'D
・ WN11 12,14pin TU_R,TU_L on MCU_CD_USB_B'D
・ WF11 12,14pin F_TU_R,F_TU_L on INPUT B'D
・ C122,123 on INPUT B'D
N.G 半田付けを確認
・ [IC11] on INPUT B'D
N.G 半田付けを確認
・ JK52,on FRONT B'D
・ BN82 on FRONT B'D
半田付けを確認
N.G ・ CN72 2,4pin PORT_L<PORT_R on INPUT B'D
・ BN72 on AMP B'D
・ CN82 on AMP B'D
N.G 半田付けを確認
・ [IC11] on INPUT B'DMAIN UNIT.