Sharp CD-MD3000H Service Manual page 50

CD-MD3000H/CD-MD3000W
FROM
CD PWB
FROM
MD PWB
CNP920
MD_RCH
28
MD_A_GND 27
MD_LCH 26
AD_GND 25
24
REC_RCH
MD_A_GND 23
REC_LCH 22
A_+B(MD)
21
LOAD_SW 20
PCONTO 19
D_+B(MD)
18
TO MD D_+B(MD)
17
PWB
D_GND(MD)
16
D_GND(MD)
15
D_GND(MD)
14
D_GND(MD)
13
DSTB
12
MDDATA
11
KDATA
10
SERCH
9
MDDSCK
8
SID
7
RESET
6
P_DOWN 5
NC
4
BACKUP
3
GND 2
1
CNP901
GND
33
FH_C-SW_B
32
FH_C-SW_A 31
FH_A-SW_E
30
FH_A-SW_D
29
FH_A-SW_C
28
FH_A-SW_B
27
FH_A-SW_A
26
FH_T-SW_A
25
FH_T-SW_B 24
FH_T-SW_C
23
CD-SW 22
NC
21
CD_RES
20
CD_CCE 19
CD_BUCK
18
TO CD PWB
CD_BUS3
17
CD_BUS2
16
CD-RW 15
CD_BUS1
14
T-MO_REV
13
CD_BUS0
12
T-MO_FOR
11
CD_L
10
PU-IN
9
A_GND
8
C-MO_REV
7
CD_R
6
C-MO_FOR
5
CD_GND
4
CD_GND
3
2
1
SOLENOID
+SOL
SENSOR OUT
PLAY
PLAY SW
SWITCH
+MTR
NC
TAPE
NC
MOTOR
+
+5V SENSOR
M
M
– COM
–
CST_SW
CASSETTE
F_REC
SWITCH
R_REC
CNP925
CD_DATA 4
CD_LRCK
3
CD_BCK
2
1
D_GND
CNP921
CD_LRCK 1
CD_BCK 2
D_GND 3
CD_DATA 4
TO AUDIO
SECTION
D_+B
SOLENOID DRIVER
Q905
CD_+B
CD_+B
FFC970
Q907
1 1
1 12
2 11
+B
RUN PULSE
3 10
4
9
5
8
Q908
6
7
7
6
8
5
9
4
10
3
11
2
12
12 12 1
Figure 50 BLOCK DIAGRAM (4/7)
CNP975
FROM
CD PWB
CD DOUT
+B
Q952
+B
X901
8MHz
+B
Q953
X902
32.768kHz
RESET
+B
Q901
+B
SOL
Q906
RUN_PUL
+B
CAM-SW
+B
MOTOR DRIVER
MOTOR
Q909
+5V
CST-SW
SIDE-A
g
SIDE-B O Q P X
i
– 50 –
IC921
74HCT00F
DIGITAL SIGNAL
SWITCH
2
1
1 Vcc
14
13
2
12
3
4 11
5
10
9
6
7 8
GND
CD-MD3000W
ONLY
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11
LCD E
31
32
TIMER LCD
33
BACK LED CONT
34 SYS MUTE
30 LCD R/W
29 LCD RS
35 C FUTA CL
28 POWER RLY
C FUTA OP
36
27 N.C.
37 VDD
26 LCD DB7 IC901
X2
38
39 X1
IX0354AW
VSS
40
41 XT2 SYSTEM
42 XT1
MICROCOMPUTER
RESET
43
44 REMOCON
JOG-A
45
49 SP RLY
46 JOG-B
50 POWER KEY
47 SYS STOP
48 PROTECT
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
+B
+B
1
3 IC905
IC905
2
KIA7042AP
RESET
U V W T R d c
f
TO AUDIO SECTION
UNA901
DIGITAL
INPUT
1
2
3
SW901
SPAN
SELECTOR
50/9
100/10
NC
+B
+B
a
1 2 3 4 5 6 7 8 9 1