Front Usb - Denon DCD-720AE Service Manual

1 2
FRONT+USB
CWFB 1
FL2
C728
R721
FL1
0.01uF
1.0
GND_DISPLAY
GND_DISPLAY
+42V
LED_R
GND
LED_G
CBLG
CWFG
GND_LED
CUP12470Z-3
LED PCB
LED PCB :
L
GND POWER + POWER -
3 4
CUP12470Z-1
FRONT PCB
F701 CFL16ST103GINK
4 5 6 7 8 9 10 11 12 13 14 30 31 32 33 34 35 36 37 38 39 40 43
R725
R722 R723 1.0
10 10
+3.3V_D_2
GND_DISP C731
MCU+3.3V_2
Q723 Q721
0.1uF JW04
RT1P144C RT1P144C
R732 R734
C736 0.1uF R726 VFD_RSTI
150 180 33
C735 100P R727 VFD_CE
33
GND_DISP
C734 100P R728 VFD_CLK
33
C733 100P R729 VFD_DI
R731 R733 33
220 0
R741 R742 R743 R716
Q724 Q722
RT1N141C RT1N141C
1.8K 1.5K 1K 1K
GND_DISP GND_DISP KEY MATRIX
STBY POWER
5
F
FRONT PCB :
CRVKSM603TH5B
IC75
MCU+3.3V_2
REMOCON SENSOR
Vcc GND VOUT
3 2 1
C751
0.1uF +3.3V_D_2
C752
0.01uF
A A
FCFH
D751
+3.3V_D
N.C GND_DISP
GND_D
FG11
VFD_RSTI
VFD_CE
FROM CD PCB
VFD_CLK
VFD_DI
GND_D page 3
MCU+3.3V
MCU+3.3V_2
GND_D
REMOTE
REMOTE
KEY0
KEY0
KEY1
KEY1
EX_INTERRUPT
EX_INTERRUPT
LED_R
LED_G
58
6 7
CUP12470Z-4
CBUM USB PCB
GND_D
L601 0
GND_D
FROM CD PCB L602 0
+DATA
L603 0
-DATA
page 3
VBUS
USB PCB :
0.1uF
C605
USB PARTS
0.01uF
C606
U GND_USB
D604
DCD720AE Only A A N.C
FG12
SCHEMATIC DIAGRAMS (2/3)

FRONT USB

8
A
B
JK61
VBUS
D-
D+
GND
USB JACK(BLK)
C
D
E
GND_D
+POWER _D
F
STANDBY POWER