Sharp SD-EX220H Service Manual page 32

SD-EX220H
A
B
C
D
SWITCH PWB-B3
R771
2.7K
R770
1.5K
1
C770
2
0.01
E
OPEN
CLOSE
SW771
CD DOOR
OPEN/CLOSE
CHASSIS GND
+B CHK
F
-VP
V+
V-
GND
POWER
G
+5.6V
(USWD)
PROTECT
SUB TRANS+B
P_IN
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
+B
O/C_SW
1 1
2 2
CHASSIS_GND
11 12
R682
15K
+B_CHK
10 11
R681
-VP 150K
9 10
V+ VF1
9
8
V- VF2
7 8
D_GND
7
6
POWER
5 6
+5.6V
4 5
+B
PROTECT
3 4
SUB TRANS+B
2
3
40V RELAY
1
1
2
+B
C618
1/50
D_8
D_7
D_6
D_5
D_4
D_3
D_2
D_1
RDS_RST
RDS_DATA
RDS_CLK
C624
100P(CH)
RDS_RDY
SURROUND
KEY1
C625
0.001
KEY1
D603
DS1SS133
+5V(UNSW)
+5V(BACKUP)
R728 R721
D604
1K 1.2K
DS1SS133
SW615
SW608
PLAY/PAUSE STOP
R716
+B
1.5K
SW602
VOLUME UP
SW601
VOLUME DOWN
3 4
6 – 12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62
81 DIG8
82 DIG7
83 DIG6
DIG5
84
DIG4
85
DIG3
86
DIG2
87
DIG1
88
89 VEE
C635 C619
1/50
0.022
R690 1K
RDS_RST
90
R691 1K
RDS_DATA
91
R692 1K
RDS_CLK
92
R693 1K
93 RDS_RDY
94 DAC_ML
R695
1K
SURROUND
95
R696 1K
ILU_LED
96
97 AVSS
C622
10/16
98 VREF
+B
R699
INI
99
1K
KEY1
100
R700
1K
1 2 3 4 5 6 7 8
R601
1K
R733
10K
R734
+B
10K
+B
C601
0.001
C603
100P(CH)
+B
R720
1.8K
SW607
TUNER
SW606
(BAND)
AUX
+B
5
FL601
FL DISPLY
IC701
IX0557AW
SYSTEM
MICROCOMPUTER
9 10 11 12 13 14 15 16 17 18 19 20
R718 R71
2.7K 1K
SW604
SKIP/TUNING UP
R725 R724
SW612
1.2K
1.5K
SKIP/TUNING
DOWN SW611 SW61
BASS/TREBLE
OPEN/C
6