Read Sharp SD-CX1 (serv.man7) Service Manual online
SD-CX1H
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 37.
Figure 48 SCHEMATIC DIAGRAM (7/14)
LED PWB-B7
HEADPHONES PWB-B6
CD SWITCH PWB-B5
DISPLAY PWB-B1
78
+B
ICD03
CD56
0.001
RED
GREEN
BLUE
LED3
LED2
LED1
LED8
LED11
LED10
LED9
AUX
TUNER
CD
MD
1
6
1
6
3
1
3
1
H.P_SW
D7
D6
D5
D4
D3
D2
D1
D0
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
12G
11G
10G
9G
8G
P36
P35
P34
P33
P32
P31
P30
P29
P28
P27
P26
P25
P24
P23
F1
F1
NP
NP
NP
NP
7G
6G
5G
4G
3G
2G
1G
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
8
7
6
5
4
3
2
1
S15
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
Q4
Q3
Q2
Q1
Q0
LCK
CLOCK
DATA
VSS VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
10
11
12
13
14
15
16
17
18
9
8
7
6
5
4
3
2
1
LCK1
LED3
LED2
LED1
CLK
DI
SEG15 -25V
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
VCC
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VEE
AVSS
VREF
P77
P76 4.9V
P75 4.9V
P74 4.9V
P73 4.8V
P72 0.9V
P71 4.9V
PB3 4.8V
PB2 0V
P57 2V
P56 0V
P55 0V
P50 0V
P54 0V
P53 5V
P52 0V
P51 0V
P67 2.8V
P70 4.9V
P66 4V
P65
0
1
V
DIG4
-31V
DIG3 -31V
DIG2 -17V
DIG1 -20V
DIG0 -20V
SEG31 -31V
SEG30 -25V
SEG29 -31V
SEG28 -28V
SEG27 -28V
SEG26 -25V
SEG25 -22V
SEG24 -31V
SEG23 -22V
SEG22 -25V
SEG21 -25V
SEG20 -31V
SEG19 -22V
SEG18 -25V
SEG17 -31V
9
10 11 12 13
8
7
6
5
4
3
2
1
14 15 16 17 18 19 20 21
100
99
98
97
96
95
94
92
93
91
90
89
88
87
86
85
83
84
82
81
71
72
73
74
75
76
77
78
79
80
80
70 69 68 67 66 65 64 63 62 61 60
SEG16 -29V
KEY-3
KEY-2
KEY-1
POWER
SPAN
CD_OP/CL_SENS
TUNER_SM
PROTECT
H.P_SW
MD_RESET
MD_ST
MD_LOADSW_
MD_SERCH
MD_D_STB
MD_DSCK
MD_KDATA
3
1
5
4
2
3
1
5
4
2
3
1
5
4
2
D1
S16
S20
S19
S28
S27
S26
S25
D0
D4
D3
D2
S31
S30
S29
S24
S23
S22
S21
S18
S17
S11
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
S0
79
1
3
2
1
3
2
2
1
3
LED8
LED9
LED10
LED11
4.9V
0V
0.2V
5.8V
5.8V
5.8V
0V
0V
0V
4.3V
4.8V
4.8V
0V
NC
NC
NC
+B
+B
+B
+B
+B
NC
NC
NC
NC
NC
NC
RD60
10K
10K
CD13 47P
CD12 47P
CD14
47P
RD64
10K
10K
RD63 10K
RD62 10K
RE17 47K
RE16 47K
RE15 47K
RE14 47K
RE13 47K
RE12 47K
RD21 2.2K
RE11 47K
RE10 47K
RE09 47K
RE08 47K
RE07 47K
RE06 47K
RE05 47K
RE04 47K
RE03 47K
RE02 47K
CD04
0.022
CD05
47/16
LD02
2.2
µ
H
RD17 2.2K
RD18 1K
RD19 1K
RD16 1K
RD15 1K
RD09 1K
LD03
2.2
µ
H
RD14 10K
RD10 1K
RD12 10K
RD13 10K
RD07 1K
CD07
1/50
RD20 2.2K
CD10
0.022
CD11
10/16
RD83
1K
CD54
330P
ICD03
INPUT/OUTPUT
EXPANDER
BU2092F
RD11 1K
R
2
RD98
1.8K
RD97
1.5K
RD96
1.2K
RD95
1K
RD92
1.5K
R
1
RD91
1.2K
RD90
1K
SW
CD P
SWD11
SKIP UP
SWD10
VOLUME
DOWN
SWD04
ERASE
LEDD01
STM515AS
SWD03
MD EJECT
RE20
180
RE19
180
RE18
270
CD52
0.022
0.022
BID04
LEDD10
4204UGT4 RE31
330
LEDD09
4204UGT4 RE30
330
LEDD08
4204UYT4
RE29
680
CD16
100P
RD66
10K
10K
RD67
10K
RE39
10K
RE40
3.3K
CD17
100P
RE42
3.3K
RE43
33
K
SWD09
VOLUME UP
SWD07
CD EJECT
BID02
SWD02
ON/STAND-BY
ON/STAND-BY
CD36
0.01
FLD01
FL DISPLAY
BID03
RD69
1K
SWD16
MD STOP
CD39
0.022
CD38
0.022
CD40
0.022
0.022
RD85
1K
SWD15
MD PLAY
SWD17
PLAY MODE
SWD
RECO
MO
RD86
1.2K
JHP01
HEADPHONES
CD37
0.01
LD04
2.2
µ
H
LEDD07
4204UYT4
RE28
680
CNPD04
QD03
KRA107 M
KRA107 M
QD04
KRA107 M
KRA107 M
QD05
KRA107 M
KRA107 M
CD06
0.022
RD06 1K
RD08 1K
RD05 1K
RD04 1K
RD03 1K
RD02 1K
ICD01
SYSTEM
MICROCOMPUTER
IX0376AW
CNSD04
RD61
12K
12K
DD08
DS1SS133
DD07
DS1SS133
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