Sharp CD-RW5000, Service Manual

Page: 28 / 80

CD-RW5000
– 28 –
Figure 28 BLOCK DIAGRAM (3/6)
1 1
12
12
g
h
i
TO CD PWB
O Q P X Y U V W T R S d f c b a
+B
IC905
3
2
1
+B
+B
+B
+B
+B
+B
+B
+B
+B
CD-R
UNIT
IC926
TC7WU04F
INVERTOR
8
7
6
5
3
1
2
4
CNP911
UNA902
DIGITAL
OUTPUT
UNA901
DIGITAL
INPUT
6
5
4
3
2
1
7
6
5
4
3
2
1
5
4
3
2
1
CNP914
CNP912
SCREEN
EBU SIGNAL(OUTPUT)
EBU GROUND
SCREEN
EBU SIGNAL(INPUT)
EBU GROUND
A-OUT(PB)R-CH
A-OUT(PB)L-CH
GROUND(A)
A-IN(REC)R-CH
A-IN(REC)L-CH
GROUND(CASE)
GROUND(CASE)
RESET
REQKBE
I2C-CLOCK
GROUND(D)
I2C-DATA
3
2
1
3
2
1
IC921
74HCT00F
DIGITAL SIGNAL
SWITCH
14
13
7
6
5
4
3
2
1 Vcc
GND 8
9
10
11
12
Q910 Q911
TO AUDIO SECTION
MD_RCH
MD_LCH
3
2
1
CD-RW MUTE
+B
+B
F_REC
CST_SW
NC
NC
+
–
SOLENOID
–COM
+MTR
PLAY SW
+5V SENSOR
SENSOR OUT
+SOL
R_REC
M
PLAY
SWITCH
TAPE
MOTOR
CASSETTE
SWITCH
M
1
2
3
4
5
6
7
8
9
10
11
12
1
2
1
CNP975
FROM
CD PWB
CD DOUT
X902
32.768kHz
Q909
Q908
Q907
Q906
Q905
IC905
KIA7042AP
RESET
Q901
X901
8MHz
CNP970 FFC970
IC901
IX0355AW
SYSTEM
MICROCOMPUTER
CNP901
33
32
31
30
29
28
27
26
25
24
23
22
FH_A-SW_A
FH_T-SW_C
FH_T-SW_B
FH_T-SW_A
FH_A-SW_B
FH_A-SW_C
FH_A-SW_D
FH_A-SW_E
FH_C-SW_A
FH_C-SW_B
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CD_BUS3
CD_BUCK
CD_CCE
CD_RES
CD_BUS2
CD-RW
CD_BUS1
T-MO_REV
CD_BUS0
T-MO_FOR
CD_L
PU-IN
A_GND
C-MO_REV
CD_R
C-MO_FOR
CD_GND
CD_GND
CD_+B
CD_+B
2
3
4
5
6
7
8
9
10
11
12
CD_GND
A_+10V
A_GND
L CH
R CH
A_GND
A_+10V
A_GND
CD
B
CD_GND
A_-B AUX_SEL
L_CH
R_CH
A_GND2
C2B_CL C2B_DO C2B_CE C2B_DI S-MUTE VSM
TO AUDIO SECTION
TO AUDIO SECTION
D_GND A_+B PB_MUTE CD_MUTE CD-R_SEL
A_GND
CD_R
CD_L
TO AUDIO SECTION
SIDE-A
CST-SW
LEVEL_L LEVEL_R
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
40
41
42
43
44
45
46
47
48
49
50
31
32
33
34
35
36
37
38
39
LCD E
CD MUTE
AVref1 AVSS
Vref 0
AVDD A
RESET
XT1
XT2
VSS
X1
X2
VDD
TIMER LCD
30 LCD R/W
29 LCD RS
28 POWER RLY
27 N.C.
26 LCD DB7
TEST/Vpp
LCK2 LCK1
JOG-B
KEY 4 KEY 3 KEY 2 KEY 1 KEY 0
BACK LED CONT
LCD DB6 LCD DB5 LCD DB4
DATA
JOG-A
CST SW
CAM SW
B-FP SW
REMOCON
VSM
PROTECT
C FUTA OP
SPAN
C FUTA CL
SYS MUTE
DEST_IN
CE
TUNER DI TUNER DO TUNER CL
CLK
CAM-SW
RUN_PUL
MOTOR
SOL
1 2 3 4 5 6 7 8 9
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11
49 SP RLY
50 POWER KEY
CD-SW
NC
GND
SOLENOID DRIVER
RUN PULSE
MOTOR DRIVER
SYS STOP
+5V
SIDE-B
MD SERCH MD RESET MD-DATA/RX
K-DATA/TX
MD-DSCK