Sharp MD-C2 Service Manual page 58

MD-C2
A
SW
28
+2.8V
27
B
26
LVVOUT
25
APCOUT
24
LDVCC
23
DGND
22
DGND
21
4 3 2 1
LDON
20
LDVAR
19
A
18
COM
17
I/V RF1
16
5 6 7 8
F
15
E
14
I/V RF3
13
I/V RF4
12
B
VCC
11
AGND
10
MP/R
9
I/V RF2
8
APCIN
7
DGND
6
LVVIN
5
F–
4
T.COIL
T+
3
F+
2
F.COIL T–
1
MD PICKUP UNIT(38)
C
MD MECHANISM
SWITCH PWB-K
WRITE R1930
1.8K
MINF
PRO
GND
SW1930
LOADING
CARTRIGE
DISC ID
D
LEAD IN
R1931
470
HINF
LEAD IN
SW1931
PLAY
SW1932
R1933
820
REC
SW1933
UNLOAD
SW1934
CARTRIGE
SW1935
E
M1951
+
MD M
SPINDLE
(WHITE)
–
MOTOR
M1952
+
MD (BLACK)
M
LOADING
–
MOTOR
(RED)
M1953
+
MD
M
SLED
–
MOTOR
F
MD CHANGER SWITCH PWB-L
SW1940
SLOT 1
SW1941
SLOT 2
SW1942
SLOT 3
G
SW1943
LIFT A
R1940
10K
R1941
SW1944
18K
LIFT B
CN1941
1 2
1 2 CW1941
M1941
M
MD LIFT MOTOR
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
1
MD RELAY PWB-J
28
R1910
TP1938
28
27
TP1937
27
TP1936
26
0.7V
25
24
TP1933
0.7V
23
22
0.7V
R1913
21
TP1930 10K
20
TP1929
0.7V
19
TP1928
C1101
18
1
1.6V
17
TP1926
16 C1102
1.6V
TP1925
1
15
TP1924
14
0.7V
TP1923
13
TP1922
C1103
12
0.027
TP1921
11
TP1920 R1103
1.6V
10
390K
TP1919 1.6V
9
TP1918
8
TP1917
1.6V
10
7
TP1916
6
C1912
TP1915
1.6V
5 0.033 11
TP1914
4
TP1913
1.6V
3 12
TP1912
2
TP1911
1
1
3
12
2
C1920
0.022
C1921
CW1921
0.022
MINF TP1971 MINF
1 1 1 1
GND TP1972 GND
2 2 2 2
LOADING TP1973 LOADING
3 3 3 3
CARTRIGE TP1974 CARTRIGE
4 4 4 4
LEAD IN TP1975 LEAD IN
5 5 5 5
TP1976
HINF HINF
6 6 6 6
TP1977 SP+
7 7
TP1978 SP–
8 8
TP1979 TRY–
9 9
TP1980 TRY+
10 10
TP1981 SLD+
11 11
TP1982 SLD–
12 12
15
CW1904
CN1904
1 1
2 2
(WHITE)
CW1902
CN1902
1 1
2 2
(BLACK)
CW1901
CN1901
1 1
2 2
(RED)
CN1940
CW1940 CN1402
SLOT1 SLOT1 TP1941
1 1
SLOT2 SLOT2 TP1942
2 2
SLOT3 SLOT3 TP1943
3 3
C1457
GND GND TP1944
4 4
0.022
TP1945
LIFT LIFT
5 5
SHIFT+ SHIFT+
6 6
SHIFT– SHIFT– TP1946
7 7
6
7
8 NC
9
NC
IC1602
NC
10
LB1930M
MOTOR DRIVER
VOLTAGE (IC1602)
1 5V 6 0V
OTHER:0V OTHER:1.3V
3
7
LIFT UP:3.2V LIFT UP:4.9V
OTHER:0V OTHER:1.3V
4 9
LIFT DOWN:3.2V LIFT DOWN:4.9V
5 0V
R1301
TP1300
10
1
C1301
C1300
2
0.027
82P (CH)
CN1300
2 3
Figure 58 SCHEMATIC DIAGRAM (15/16)
TP1124
C1108 C1110
0.47 0.0047
C1109
1
48 47 46 45 44 43 42 41 40 39 38 37
POUT EFMAGI EFMAGC ADAGC
RF2
EFM
1
AGC ADIPI
RF1 R ADIPO
2
&
DIFF
RF4
3
NC
SW
ADLPFO
RF3 DIFF
4
REFI IC1101 22KO
ADIP
5
AGC
IR3R55
22KI
RF SIGNAL
6
REFO
WBO
RFADD
7 BIAS LPF HPF
TCGO
8
TCGI
AIN AOUT
9
BIN BOUT
LOGIC
EIN EOUT
Low reflection:0V
High reflection:3.2V
FIN FOUT
13 14 15 16 17 18 19 20 21 22 23 24
C1119
1
TP1401
TP1402
TP1403
TP1404
TP1405
TP1406
TP1407
TP1408
TP1409
TP1410
TP1411
TP1412
16
IC1601
M56788FP
MOTOR DRIVER
1.7V
CH3IN
1
OUT3
2
SPDRR 1.6V
3 IN3–
4.9V
4 VBS2
4.9V
5 Vm2
SPDRF
6 NC
0V
7 GND
1.6V
8 IN3+
2V
9 VM3–
2.8V
10
VM3+
0V
11 GND
2.4V
VM4+
12
2.4V
13 VM4–
2.6V
C1613
14 VM5+
0.0015
2.4V
VM5–
15
1.6V
OUT5
16
SLDRR 1.6V
17 IN5–
SLDRF 1.6V
18 IN5+
1.2V
IN4+
19
1.2V
20 IN4–
1.6V
21 OUT4
R1624
6.8K
5
4
3
2
L1300
1
L1602 47µH
R1304
1µH
150
C1652 C1651
1 100/10
EFMO
D D
2.6V G
2.6V
G
Q1300 S
S 14 13 12 11 10 9
BSH103
D
D
1 2 3 4 5 6
G
2.6V
S
S
R1300 R1302
6.8 6.8
4
– 58 –
MD MAIN PWB-I
TP1132
1.6V
36
R1106
56K
1.6V
35 TP1133
4
34 0V
1.6V
33
TP1134
1.6V
32
31
1.6V
1.6V
30
1.6V
29
1.36V TP1122
28 24 24
TP1121
23 23
R1962
TP1952
1.35V DTEMP TP1120
27 22 22
R1961
LATCH TP1951 TP1119
21 21
R1960
1.78V CLOCK TP1950 TP1118
26 20 20
R1959
TP1949
DATA TP1117
19 19
1.78V
TP1961
25 18 18
TP1960 TP1115
17 17
R1956
TP1954
TP1114
16 16
R1955
TP1955
TP1113
15 15
R1954
TP1956 TP1112
14 14
R1953
TP1958 TP1111
13 13
R1951
TP1957
TP1110
12 12
TP1959 TP1109
R1952
11 11
560
TP1108
10 10
TP1962
R1950
9 9
100
TP1948 TP1107
8 8
TP1971 TP1106
7 7
TP1970 TP1105
6 6
TP1104
5 5
TP1103
4 4
TP1102
3 3
TP1101
2 2
TP1100
1 1
MINF
LOADING
LEAD IN
HINF
LOADIN
0.8V
REG+ NC
42
0.8V
REGB NC
41
1.6V TRDRF
IN1+ 40
4.9V
VBS1 39
C1602
4.9V
820P
Vm1 38
(J)
1.6V TRDRR
37
IN1–
1.6V
OUT1 36
2.4V T– TN
VM1+ 35
2.4V TP
T+
VM1– L1600
34
1µH
0V
GND 33
2.5V
F+ FP
VM2+ 32 C1616
2.5V FN 100/10
F–
VM2– 31
1.6V
30
OUT2
0V
C1603
29
GND
820P (J)
1.6V FODRR
IN2– 28
1.6V FODRF
IN2+ 27
3.1V
26
MUTE1
R1606
MUTE2 25
10K
0V (1s)
24
SS.GND
1.6V
VREF 23
1.6V
VREFO 22
VREF
C1607
1
LD+
LD–
R1612
200K (1s)
R1614
100K
(1s)
TP1302
8
7
HDON
5
EFMO–I
AOUT–IN
EOUT–IN
TCG
BOUT–IN
FOUT–IN
LDON
LDVAR
DTEMP
LATCH
CLOCK
DATA
C1118
1
WBO–I
5
R1134
1
TN
FP
TP
FN
R
1
MINF
HINF
C1407
0.047
0V
0V
LDVAR
TP1450
0V
0V
NC
C1404 0V
0.022
0V
0V
0V
RESET
R1408
3.3K
0V
MCCK
DINT
DSENSE 0V
0V
0V
SERCH
HDON R1410
3.3K
LD+
0V
LD–
0V
CIN 2V
R1457
1K
Q1400
RNC1404
1
2 3 2 3
0V 2.1V
R1406
100K 1 0V
Q1403
1 3.2V
RN2404
2
0
3.2V
Q1402
RN240
6