Read Sharp CD-MD3000 (serv.man31) Service Manual online
– 51 –
CD-MD3000H/CD-MD3000W
Figure 51 BLOCK DIAGRAM (5/7)
+B
8 7 6 5 4 3 2 1
TO DECK SECTION
TO POWER PWB
IC913
CNP102
3
2
1
+B
+B
+B
+B
+B
DIG_SEL
D_+B
D_+B
GND
GND
GND
9
10
11
12
13
DIMMER
D GND
A +B
SDA
SCL
D +B
5
1
CNP701
Q707
LCD720
LCD DISPLAY
5
1
2
3
4
3
4
VDD
VSS
VLCD
IC701
TA7291S
LOADING
MOTOR
DRIVER
1 2 3 4 5 6 7 8 9
IC913
KIA7805P
VOLTAGE REGULATOR
CNS940
BI950
BI960
IC912
BU2092F
OUTPUT
EXPANDER
CNP934
CNP931
+B
REC_RCH
REC_LCH
TAPE_L
TAPE_R
TO AUDIO
SECTION
TAPE_R
TAPE_L
A_GND
REC_LCH
REC_RCH
REC_MUTE
REC_CONT
REC_BIAS
l
POWER_RLY
SP_RLY
PROTECT
FAN
D_GND
SP_DET
SP_RLY
UN_SW 5V
AC_RLY CTL
A_-B
D_GND
FAN_CTL
1 2 3 4 5 6 7 8
M_+B
M_GND
CD_+B
CD_GND
CD_+B
CD
_
GND
M_GND
M_+B
PNL_OP
PNL_CL
D_GND
KEY4
KEY3
KEY2
KEY2
JOG-B
JOG-A
A_+B
7
6
5
4
3
2
1
D_+B
18
17
16
15
14
13
12
11
10
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CD-R_SEL
SW12
LCK
SW10
SW11
SW5
SW7
SW8
SW9
VSS
DATA
CLK
DATA
CLK
VDD
OE
A_+B
D_+B
D_GND
REMOCON
POW_KEY
POW_KEY
KEY0
KEY1
LCK
CK
DATA
POW_IND
11
10
9
8
7
6
5
4
3
2
1
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
69 70 71 72 73 74 75 76 77 78 79 80
9 8 7 6 5 4 3 2 1
CD RESET
CD CCE
83 FH T-SW C
82 FH T-SW B
81 FH T-SW A
FH A-SW B
FH M B-
FH A-SW A
FH M B+
FH M A-
FH M A+
CD RW
CD PICK IN
VDD
DEST_OUT2
VSS
FH C-SW B
FH C-SW A
FH A-SW E
FH A-SW D
FH A-SW C
CD BUS3
CD BUS2
CD BUS1
3 REC BIAS
2 REC
1 PB MUTE
CAM
SW
B-FP SW
A-FP SW
DEST_OUT1
CD BUCK
CD BUS0
REC MUTE
CD-R DATA
CD-R CLK
TUNER
DO
TUNER CL
RUN PULSE
T-SOL
T-MOTOR
NC
NC
NC
NC
m
j
k
8 9 10 11 12 13 14 15
2 11 10
+B
SW711,SW712,
SW720~SW725
Q724
Q720
Q721
Q723
Q725
Q722
SW710,SW780,
SW730~SW735
LED759
LED731
LED754
LED756
LED757
LED758
LED755
SW701
POWER
RX701
REMOTE
SENSOR
LED770
SW750~SW758
JOG701
JOG DIAL
SW760~SW764,
SW767,SW782
Q708
LED772~
LED7775,
LED786
LED7775,
LED786
SW783,
SW772~SW778
SW772~SW778
CNS720
CNS770
IC702
OUTPUT EXPANDER
BU2092F
LED_4
LED_1
LED_2
LED_3
LED_5
LED_6
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Q10
VDD
__
OE
Q11
Q9
Q8
Q7
Q6
Q5
Q3
Q4
Q2
Q1
Q0
LCK
CLOCK
VSS
POW_IND
DATA
CK
LCK
LCK
KEY0
KEY1
POW_KEY
REMOCON
D_GND
D_+B
A_+B
LED_EG
LED_5
LED_4
LED_3
LED_2
LED_1
A_+B
JOG-A
JOG-B
JOG-B
KEY2
KEY3
KEY4
D_GND
D_GND
3
2
1
5
6
7
8
9
9
10
11
1
2
3
4
4
4
3
6
7
5
2
1
IC702
DATA
+B
+B
+B
+B
+B
+B
+B
+B
LED735,LED737,
LED738
LED738
SW705
OPEN/CLOSE
MO700
CONTROL
PANEL MOTOR
MOTOR_–
MOTOR_+
D_GND
CLOSE_SW
OPEN_SW
M
MD LOAD SW
MD DSTB
MD SID
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