Cd Mcu - Denon DCD-720AE Service Manual

1 2
C901
ST+3.9V
0.1uF
C902
0.1uF
MCU+3.3V
FCCH
+3.3V_D
GND_D
VFD_RST
VFD_RSTI P1
VFD_CE
5 6 7 8
VFD_CE
VFD_CLK
VFD_CLK
VFD_DI
VFD_DI
GND_D
1 2 3 4
MCU+3.3V
GND_D
REMOTE
REMOTE
P4
KEY0
KEY0
KEY1
KEY1
EX_INTERRUPT
EX_INTERRUPT P5
LED_RED
LED_R
LED_GREEN
LED_G
P3
MCU+3.3V
+7V_DRV
PFCJ
Q151
DAC_XSMT RT1P141C
DAC_XSMT P2
DAC_LRCK
DAC_LRCK
REMOTE
GND_D
DAC_DATA
DAC_DATA
P8
GND_D
0
R158 VFD_RST
DAC_BCK
DAC_BCK Q152
VFD_DI
RT1P141C
GND_D
R159 N.C
VFD_CE
DSP_SCK
DSP_SCK
VFD_CLK
MISO/DAC_FMT
MISO/DAC_FMT
MS/DAC_FLT EX_INTERRUPT
MS/DAC_FLT
MC/DAC_DEMP
MC/DAC_DEMP LED_RED
MOSI
MOSI
+7V_DRV
+7V_DRV D+3.3V REMOTE_IN
Q104
GND_DRV
RT1P141C
GND_DRV
GND_DRV Q103
AMUTE RT1P141C
A_MUTE
Q154
3.3V_D C3875S
SPDIF
SPDIF
GND_D
USB_BOOT
Q105
REMOTE IN/OUT RT1P141C
BOOT Q106
RT1N141C
TX
RX
MCU_RESET
BOL_RESET
CHGND
C502
DC to DC
0.01uF L502
3.3uH/1.3A
IC51
8 7 6 5
1 2 3 4
PFCI L254 +13V_D C504
220 0.015u
+13V_D
ST+3.9V
+13V_D
R503 R505
C505 C506
GND_D
GND_D OPEN 51K
0.01uF 0.01uF
MCU+3.9V C507 C508
C282
GND_D
0.1uF 0.1uF 0.1uF
POWER_ON
P_DN
CHGND CHGND
V_PROT
C284
0.1uF
C283
0.1uF
CHGND
CD+MCU
GND POWER + POWER -
3 4
USB/CD_T_MCU
MCU
R109 33
CD_BUS2
MS/DAC_FLT
R110 33
CD_BUS3
CD_BUCK R111 33
Q107
CD_CCE R112 33 RT1P141C
DEBUG NC
R102 1K
DEBUG USB_RX
1K
R101
DEBUG USB_TX
TEST3 SPDIF CONT
D107
DSP_RST
CD-DSP_RST TEST1
RB160L60
DEBUG F_MUTE
DEBUG MT_STBY
C103 0.1uF
USB_DET IC11 CD_LIMIT-SW
C104 0.1uF
DVCC DVCC
HOST MCU
DVSS DVSS
C102
LED_RED TEST2
TMPM33OFWFG(128K)
0.1uF
LED_GREEN CD_OPEN-SW
VFD_RST CD_CLOSE-SW
R114 0
VFD_DI CD_OPEN-M
VFD_CE CD_CLOSE_M
R115
VFD_CLK NC
0
EX_INTERRUPT REMOTE_IN
C105 0.1uF AVCC
CVCC
R199
VREFH C101
X1
0.1uF
AVSS
10K
CVSS
R116
POWER_PROT
X2
1M NC
REGVSS
X101 R160
10K C118
10MHz
R155
100P
OPEN
P7
C114
C110
0.1uF
0.1uF
*VERSION OPTION *MODEL OPTION
VERSION R125 MODEL R126 R127
720[E2] 1K8(0.5V) DCD720AE NC 10K
720[E1C] 4K7(1V) DCD520AE 10K NC
755RE 8K2(1.5V)
R139 3.3K
RESET IC
R130
R140 3.3K
4 OUT VDD 5
1K
IC12 3 NC VSS 2
Q102
Q101
8 7 6 5 1
RT1P141C
OPEN
IC13
C120
S80124CLMCJIJT2
24C16
0.1uF
1 2 3 4
D106
C119
1SS355T
0.1uF
D105
1SS355T
L255
220
USB+5V
STBY POWER
5
SPDIF CONTROL
CVIKIC7SH04FU
IC25
D+3.3V
SPDIF CONTROL
PIN 6
1 2 3 4 5
PIN 6
R252 1M
33 R297
IC27 CVIKIC7SH04FU
BN21
8 7 6 5
1 2 3 4 5
R298
R294 R253
0 1M 1 2 3 4
LD_CHK N.C
IC23
LM1117S15
CD DSP
3 2 1 +1.5V
L252
TO DAC PCB
220 +VREF
CN22 1 2
R206 OPEN
USB_TXD
DAC_BCK C221 0.047u
USB_RXD
DAC_DATA
C220 0.047u
DAC_LRCK C219 OPEN
N.C
DSP_SCK
MSTBY
C297
LMSW
DGND
C229 0.1uF
OPSW
C230
CLSW
OPM 0.1uF
CLM C231
DVSS3
100/6.3V
RO
DVDD3 AVSS3
DVDD3-2
LO
C232 0.1uF
+1.5V DVSS3-2 CD DSP
C233 0.1uF
XVSS3
IC21
XI
C296
TC94A92FG
XO
22p
XVDD3
VDD1-2 RVSS3
R214 47K
VSS
R215 0
PIO0
LD_CHK R216 0
PIO1 TSETR
PWR_ON PIO2 RFEQO
R217 100K
PIO3 RFRPI
R218 33
AIN
R219 33
BCK1 SLCO
R220 33
LRCK1 RVDD3
C255 22P
C256 22P
C257 22P
MCU+3.3V
IC22
LM1117S33
C242
3.3V D+3.3V
1000P
3 2 1
R232 OPEN
R233 OPEN
R234 OPEN
R235 OPEN
POWER_ON
R417 0
R416 0
MCU+3.3V R458 47K
R151
R415 47K
100K
C415
R459 47K
0.1uF
RESET
C401
0.1uF
D102 1SS355T
MCU_BOOT
PC1/INT1
D103 1SS355T
BOL_BOOT
PC2/INT2
STREQ
PC3/INT3
C402 0.1uF
DVCC3B
PWR_ON DVSS1B
C403 10/16V
DVCC1B USB MCU
C404 0.1uF
RVOUT1
C417 0.1uF
RVIN0
Q401
IC41
RT1P141C RVIN1
C405 0.1uF TMP92FD28FG
R414 RVOUT2
OPEN C406 10/16V
DVCC1A
DVSS1A
MCU_RESET
Q406
RT1N141C
Q402
RT1P141C
R413
MCU_RESET
0
MCU_BOOT
UPDATE_LED
UPDATE_LED
PWROB_BOL
OPEN
Q403
RT1N141C
R412
MCU_BOOT
Q404
RT1P141C
MODEL OPTION
DCD720AE
PIN 30 H
Q405
RT1N141C
*When update the mcu program use this option
R410
10K
C906 Q407
RT1N141C
0.1uF USB DECODER
C907
Q408
RT1N141C
0.1uF
C908
0.1uF
C909
0.1uF
59
6 7
TO JOINT PCB
PFCK
16 14 12 10 8 6 4 2
17 15 13 11 9 7 5 3 1
C285 0.1uF
L SPDIF ON
0.1uF
H SPDIF OFF C286
C287 0.1uF
R903
CHGND
GND
0
R905
GND SHEET 03
0
CD+MCU PART
L201
10uH
R241 39 CD PCB :
R240 39
A+3.3V Q201
VC R239 39 A1504S
GND
R238 39
C253
100/6.3V
R904 C911
R203 0
TRO
0 0.1uF
R202 0 FCO
R906
0
TEI
MOTOR DRIVE
FEI
LDO
PD
MDI
C301
VRO
E
TNI GND3 SP-
OPEN
F
TPI
SL+ SP+
B
FPI1
D GND_DRV
FPI2 SL- FIN-R R301
A
FNI1
R311 OPEN
TIN-R FIN
C
FNI2
OPEN
R310 TIN IC31 REB
FMO
C210 OPEN
RFO 470
C209
VREF REO
AGCI RFO
C208
0.1uF +7V_DRV R303
VCC2 MUTE
0.015u
0
C207 0.1uF
A+3.3V
C206 4700P
RFI RFEQO VCC2 GND1
C205 0.01uF
R304
LD_CTL OPIN
C202 2200P
VCOI 4.7K
SLIN SPIN
R201 C201
T+ F+
VCOF
220 0.1uF
T- F-
C236 0.01uF
R307
CLO GND2
TRO
R230 0
TR+ O P O C I L N
15K C302
C303
+VREF TR- 0.1uF
MOTOR DRIVE OPEN
C304
C239
0.1uF
47P
C305
0.1uF
GND_DRV
CHGND
C910
0.1uF
GND <-> AGND
R435 100K
C431 OPEN R428 27
C432 OPEN R429 27
Q410
RT1N141C
R438
Q409
10K RT1N141C
IN OUT
X1 C413
20P R460 0
ILIM R436
GND
DVSS4
R461 0
R424
X2 100K
R462 0
C412 18P EN FLAG
47
AM[1]
LRCK1
IC43
NCP380HMU15AATBG
P80/CS[0](BOOT)
TP
2.2K
P74/TA[0]IN R425
2.2K
R426
DVCC3A3
D401 R901
DVSS3 RB160
DSP_RST 0
P67
R902
CD_CCE
P66
R401 33 0
CD_BUCK
P65
C903
R402 33
CD_BUS3
P64
R403 33
CD_BUS2 0.1uF
P63 C904
R404 33
0.1uF
C905
0.1uF
GND
CHGND
1 2 3 4
NC
9
8 7 6 5
R499
OPEN
SCHEMATIC DIAGRAMS (3/3)

CD MCU

8
A
C
LMSW
MGND
SLED-
SLED+
SPINDLE-
B
SPINDLE+
CWC6
GND_DRV
CHGND
D+3.3V
R314 18K
R313 18K
R312 18K
CWC7
LOADING+
LOADING-
OPSW
C
MGND
CLSW
GND_DRV
CHGND
CWCM
+5VD_USB
D-
D+
GND_USB
GND_USB
CWCN
D
E
USB Audio Signal
CD Audio Signal
GND_D
+POWER _D
STANDBY POWER F