Sharp SD-EX220H Service Manual page 33

1-bit digital audio system
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FL601
FL DISPLY
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
R743
47K
66 65 64 63 62
61
60
59
58
57
56
55
54
53
C701
557AW
YSTEM
COMPUTER
CD CE SDA(FLASH)
16 17 18 19 20 21 22
23
24
25
26
27
+B
C609
0.022
8
R717
+B
K
1K
G UP
R724
R723
1.2K
1K
11
SW610
SW609
TREBLE
OPEN/CLOSE
ON/STAND-BY
7
40
41
42
43
44
45
C620
1/50
52
51
50
49
48
47
46
R647
1K
40V RELAY
45
1K
R646
DT CONT
44
R645
1K
TUN_DO
43
DO
R644
1K
TUN_DI
42
DI
R643
1K
TUN_CLK
41
CLK
R642
1K
TUN_CE
40
CE
R639
1K
CD_WRQ
39
CD WRQ
R641
1K
CD_DRF
38
CD DRF
CD_DO
R637
1K
CD_DO
37
R636
270
CD_CE
36
R635
1K
CD_DI
35
CD_DI
270
R634
CD_CLK
CD_CLK
34
270
R633
CD_RES
CD RES
33
2.2K
R632
OFFSET
OFFSET
32
31
P_IN
C786
R631
0.01
1K
28
29
30
RX_IN
REMOTE
SENSOR
RM601
1
GP1UM271 2
C612
3
0.022
C611
150P(CH)
C613
10/16
R731
220K
RESET
POINT
R775
R776
1K
1K
8
+B
SWITCHING
Q607
KRC102 M
3
2
1
+B
+B
R783
47K
R777
4.7K
R778
4.7K
R779
4.7K
R671
10K
R741
100K
A/D_RESET
C636
100P
(CH)
FAN_MOTOR
A_GND(SPARE)
H/P_R_OUT
D+5V(SWD)
SURROUND
+B
+B
+B
+B
RESET
RESET
RESET
IC608
Q606
Q608
PST9140
KRC104 M
KRC104 M
2
3
1
3
2
C630
C638
4.7/50
10/16
1
1
9
10
6 – 13
DISPLAY PWB-B1
+B
VOLTAGE
REGULATOR
IC780
AN78L05
+B
2
1
3
C632
0.01
R649
H/P_L_OUT
6
5
5
CHASSIS_GND
27
5
4
4
H/P_R_OUT
4
3
3
R648
27
H/P_SW
3
2
2
C634
0.001
1
1
1
HEADPHONE PWB-B2
34
DT CONT
34
RDS_DATA
33
RDS_CLK
32
RDS_RDY
31
RDS_RST
30
DIG_FUNC
29
CD_DRF
28
CD_RES
27
CD_WRQ
26
CD_DO
25
CD_DI
24
CD_CLK
23
CD_CE
22
LID_SENS
21
OFFSET
20
19
PROTECT
18
SP_RELAY
17
H/P_SW
16
15
FAN_LOCK
14
H/P_L_OUT
13
12
11
10
D_GND
9
TUN_SM
8
S_MUTE
7
6
TUN_DO
5
TUN_CLK
4
TUN_DI
3
TUN_CE
2
+7.9V
1
CNP601
R638
1
680
FFC501
2
3
+B
11
SD-EX220H
FM SIGNAL
D781
DS1SS133
JHP601
C633
HEADPHONES
0.01
L
R
GND
C640
0.01
12

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