SS-US501/SW-US501/UZ-US501
14
14
5-6.
SCHEMATIC DIAGRAM – DIGITAL Board (2/5) –
•
See page 11 for Waveform.
• See page 26 for IC Pin Function Description.
R867
L802
FB807
FB806
L801
D802
R120
CN801
FB801
R882
R881
R880
R879
R878
R877
R876
R875
R886
R885
R884
R883
R874
C809
FB805
D822
C845
Q822
C886
C880
D820
D808
R870
R868
R869
C819
R872
D805
R865
C815
C818
C807
R864
C882
R846
R847
R848
R849
R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
R861
R862
C805
FB803
D803
C803
C827
FB809
FB804
C806
C802
R894
D806
R898
R896
Q801
Q802
R897
Q804
R899
Q803
R105
R106
C848
C602
C830
R826
R888
R887
C801
R893
FB810
R873
R107
R825
R890
R104
R844
R845
C870
FL802
IC804
C808
X801
R866
C804
R863
R108
IC803
R895
D811
D812
C810
Q821
R843
FB808
D821
R871
R889
R892
R891
C820
IC802
1M
1SS355
100k
21P
1k
1k
1k
100
1k
1k
1k
1k
100k
100k
100k
100k
100
0.1
1SS355
22
25V
2SC2712
0.1
1
1SS355
1SS355
100
100
100
1
50V
100
1SS355
10k
0.22
1
0.1
47k
0.01
100
100
100
100
100
100
100
100
1k
1k
100
1k
1k
1k
1k
1k
1k
0.1
1SS355
220
10V
0.1
0.1
22
25V
100k
1SS355
470k
100k
DTA114TKA-T
2SC2712
100k
2SC2712
1k
2SC2712
1k
1k
100p
100p
100p
100
10k
10k
0.1
47k
0
1k
1k
47k
100k
1k
1k
0.22F
5.5V
S-81233SGY
0.22F
5.5V
16MHz
10k
0.001
1k
1k
PST592C
47k
1SS355
1SS355
0.1
SRA2203S/F
1k
1SS355
100
10k
100k
100k
0.1
-M53-3BA-A
A1
A2
A3
A4
D1
D2
E1
E2
E3
E4
E5
FL,FR-MUTE
AU 15V S/W
SW-MUTE
SL, SR, C-MUTE
HEAD PHONE BUS
HP MUTE
816
808
853
854
855
856
854
853
801
802
824
898
899
900
870
869
868
844
846
827
828
829
881
885
HP S/W
855
856
HP S/W
A-GND
HP.L
HP.R
806
807
811
812
813
814
815
817
820
822
862
DI
CE
CL
XMODE
SIRCS
SIRCS
APC
APC
VR
VR
KEY
KEY
STND
STND
PWR
PWR
STAND BY 5.6V
5.6V UNSW FOR SUB
DIGITAL 5.6V-SW
827
828
829
GND(SHIELD)
READY 3.3V
GND
D-3.3V
BACK LIGHT
LCD-CS
LCD-C/D
LCD-CLK
LCD-DATA
SIRCS
V/R
KEY
STAND BY LED
GND
HP.L
HP.R
HP.SW
HP-MUTE
STAND BY 5.6V
APC LED
(2/5)
POWER ON LED
Q821,822
MUTING
CONTROL
SWITCH
(US)
(EXCEPT US)
SWITCH
Q801,803
KEY ACTIVE
SIRCS
BUFFER
(US)
(EXCEPT US)
SYSTEM CONTROLLER
+3.3V REGULATOR
R
S
T
G
N
D
V
IN
RESET SIGNAL
GENERATOR
SWITCH
RESET
µ
PD703033BYGF
1
µ
H
1
µ
H
(Page 13)
(Page 15)
(Page 16)
(Page 17)
(Page 19)
(Page 17)