Denon D RCD-M37, Service Manual

Page: 26 / 85

26
RCD-M37 / RCD-M37DAB / D-E500 / D-M37
(2) AM/FM TUNER-in
Check Power Supply Voltages Check Soldering.
for
䇭
PREAMP & POWER AMP. N.G
䊶
CN72 1,5pin +12V,-12V on INPUT B'D
䊶
INPUT B'D :+12V,-12V
䊶
CN82 5,8pin -22.8V,+22.8V on AMP B'D
䊶
AMP B'D : +22.8V,-22.8V
䊶
POWER B'D
䊶 SPEAKER B'D
O.K.
Check Power Supply Voltages for AM/FM TUNER.
MCU_CD_USB B'D
N.G Check Soldering.
䊶 WN21 4pin +12V 䊶 CN98 9pin +12V on MCU_CD_USB B'D
䊶 POWER B'D,
O.K.
Check Analog Audio Data output from TUNER PACK Check Soldering.
MCU_CD_USB B'D N.G
䊶
WN21 1,3 pin TU_L,TU_R on MCU_CD_USB B'D
䊶
[TUNER PACK] output and WN 21 1,3pin TU_L, TU_R
䊶
WN11 12,14pin TU_R,TU_L on MCU_CD_USB_B'D
㪠㪥㪧㪬㪫㩷㪙㩾㪛 䊶
WF11 12,14pin F_TU_R,F_TU_L on INPUT B'D
䊶
[IC11]:25,26pin
䊶
C122,123 on INPUT B'D
O.K.
Check Digital Audio Data output from FUNCTION IC
INPUT B'D
N.G Check Soldering.
䊶 [IC11]:49,50pin LOUT,ROUT 䊶 [IC11] on INPUT B'D
㩷
O.K.
to CD PLAY * Mark
(3) Portable-in(Front-in)
Check Analog Audio Data output from Prtable-in
FRONT B'D
N.G Check Soldering.
䊶 [Portable-in] output 䊶 JK52,on FRONT B'D
䊶 BN82 1,3pin POR_L.POR_R 䊶 BN82 on FRONT B'D
O.K.
Check Analog Audio Data 䇭 input for FUNCTION IC Check Soldering.
INPUT B'D N.G 䊶 CN72 2,4pin PORT_L<PORT_R on INPUT B'D
䊶 [I11]:21,22pin PORT_L,PORT_R 䊶 BN72 on AMP B'D
䊶 CN82 on AMP B'D
O.K.
Check Analog Audio Data output from FUNCTION IC
INPUT B'D
N.G Check Soldering.
䊶 [I11]:49.50pin LOUT,ROUT 䊶 [IC11] on INPUT B'DMAIN UNIT.
O.K.
to CD PLAY * Mark
(2) AM/FM TUNER入力
PREANM, POWER AMP用電源電圧確認 半田付けを確認
・ INPUT B'D :+12V,-12V N.G ・ CN72 1,5pin +12V,-12V on INPUT B'D
・ AMP B'D : +22.8V,-22.8V ・ CN82 5,8pin -22.8V,+22.8V on AMP B'D
・ POWER B'D
・ SPEAKER B'D
O.K.
AM/FMﾁｭｰﾅｰ用電源電圧確認
MCU̲CD̲USB B'D
N.G 半田付けを確認
・ WN21 4pin +12V ・ CN98 9pin +12V on MCU̲CD̲USB B'D
・ POWER B'D,
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 半田付けを確認
MCU̲CD̲USB B'D N.G ・ WN21 1,3 pin TU̲L,TU̲R on MCU̲CD̲USB B'D
・ [TUNER PACK] output and WN 21 1,3pin TU̲L, TU̲R ・ WN11 12,14pin TU̲R,TU̲L on MCU̲CD̲USB̲B'D
INPUT B'D ・ WF11 12,14pin F̲TU̲R,F̲TU̲L on INPUT B'D
・ [IC11]:25,26pin ・ C122,123 on INPUT B'D
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
N.G 半田付けを確認
・ [IC11]:49,50pin LOUT,ROUT ・ [IC11] on INPUT B'D
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
N.G 半田付けを確認
・ [Portable-in] output ・ JK52,on FRONT B'D
・ BN82 1,3pin POR̲L.POR̲R ・ BN82 on FRONT B'D
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 半田付けを確認
INPUT B'D N.G ・ CN72 2,4pin PORT̲L<PORT̲R on INPUT B'D
・ [I11]:21,22pin PORT̲L,PORT̲R ・ BN72 on AMP B'D
・ CN82 on AMP B'D
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
N.G 半田付けを確認
・ [I11]:49.50pin LOUT,ROUT ・ [IC11] on INPUT B'DMAIN UNIT.
O.K.
CD再生の*マークへ