Sharp CD-RW5000 Service Manual page 28

CD-RW5000
CD-R
UNIT
1
2
3
TO CD PWB
SOLENOID
SENSOR OUT
PLAY
SWITCH
TAPE
MOTOR
+
M +5V SENSOR
M
–
CASSETTE
SWITCH
CNP911
EBU GROUND
1
EBU SIGNAL(INPUT)
2
SCREEN
3
EBU GROUND
4
EBU SIGNAL(OUTPUT)
5
SCREEN
6
CNP912
GROUND(CASE)
1
GROUND(CASE)
2
RESET
3
REQKBE
4
I2C-CLOCK +B
5
GROUND(D)
6
+B
I2C-DATA
7
CNP914
A-IN(REC)L-CH
5
GROUND(A)
4
A-IN(REC)R-CH
3
A-OUT(PB)R-CH
2
A-OUT(PB)L-CH
1
MD_RCH
MD_LCH
CD-RW MUTE
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
21
NC
CD_RES
20
CD_CCE
19
CD_BUCK
18
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 SOLENOID DRIVER
CD_GND
4
CD_GND
3
CD_+B
2
CD_+B
1
FFC970
+SOL
1 1
1 12
2 11 +B
PLAY SW
3 10
+MTR
4
9
NC 5
8
NC 6
7
7
6
8
5
–COM
9
4
CST_SW 10
3
11
2
F_REC
12
12 12
1
R_REC
Figure 28 BLOCK DIAGRAM (3/6)
FROM
CD PWB
IC921
74HCT00F
DIGITAL SIGNAL
SWITCH
IC926
TC7WU04F
INVERTOR
Q910 Q911
+B
Q905
SOL
Q906
RUN_PUL
Q907
RUN PULSE
CAM-SW
+B
Q908 MOTOR DRIVER
MOTOR
Q909
+5V
CST-SW
SIDE-A
g h i
SIDE-B
TO AUDIO SECTION
– 28 –
CNP975
2
CD DOUT 1
Vcc
1
2
3
4
5
6
7
GND
5 4
3
6
2
7
8 1
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
SYS MUTE
34 30 LCD R/W
29 LCD RS
35 C FUTA CL
28 POWER RLY
36 C FUTA OP
27 N.C.
VDD
+B 37
26 LCD DB7
X901 X2
38
8MHz
39 X1
40 VSS
XT2
41
X902
42 XT1
32.768kHz
MICROCOMPUTER
RESET
43
REMOCON
44
JOG-A
45
49 SP RLY
46 JOG-B
50 POWER KEY
SYS STOP
47
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
IC905
KIA7042AP
RESET
+B
1
3
IC905
Q901
2
+B
O Q P X Y U V W T R S d
TO AUDIO SECTION
UNA901
DIGITAL
INPUT
1
14
13
2
12 3
11
10
9 1
8 2
3
UNA902
DIGITAL
OUTPUT
+B
IC901
IX0355AW
SYSTEM
+B
A_GND
c b a 1 2 3 4 5 6 7 8 9
f
TO AUDIO SECTION