Sharp CD-MD3000H Service Manual page 68

CD-MD3000H/CD-MD3000W
A
B
C
R1101
1
30
D
28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11
28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11
LDOUT
1 VCC 8
EXT.C
2 GND
7
APC
3 6
LDON
E
LVV
4
5
LDVAR
MD PICKUP UNIT
R1930
390
SW1930
WRITE PRO
R1931 R1932 LOADING
560 120
MINF
SW1931
DISC MEDIA GND
SW1932
LOADING
F
SW1933
R1933
RECORD
270
SW1934
PLAY
LD+
+
M
LD-
–
M903
MD LOADING
MD LOADING
MOTOR
MOTOR PWB-K2
G
MD MECHANISM
SWITCH PWB-K1
M902
SW1936
MD SLED
LEAD IN
MOTOR
+
TP1941
M
TP1942
–
TP1946
–
TP1945
M
TP1943
+
TP1944
M901
MD SPINDLE
MOTOR
H
• The numbers 1 to
• NOTES ON SCHEMATIC DIAGRAM can be found on page 46.
1
C1117
48 47 46 45 44 43 42
1234
RF1
1
R
and
2
RF2
SW
3
RF3
DIFF
4
RF4
IC1101
C1110
REFI
5
IR3R58M
1
RF SIGNAL
6
C1111 REFO
TP1130
PROCESSOR
1
AOUT
R1110 7
560K
8
BIAS
R1111
ASW
82K
AIN
9
BIN
10
BSW
11
R1112
82K
12
BOUT
R1113
560K
13 14 15 16 17 18 19
R1115
330K
R1116
47K
3.2V
R1117 R1118
47K 330K
L1100
0.47µH
R1105
1.2K
R/P
C1107
0.033
R1102
31
10K
4
16
10 9 8 7 6 5 4 3 2 1
CN1101
FLEXIBLE
PWB
10 9 8 7 6 5 4 3 2 1
28
FTD2005
HEAD DRIVER
R1301
10
1 1
C1301
2 2
0.027
MAGNETIC
HEAD
(RECORD)
5 4 3
1 2
IC1302
CPH5608
HEAD DRIVER
TP1975
LOADING
1 TP1541
1
1 1
TP1974
TP1542 MINF
2 2
TP1973 TP1543
C1402
3 3
TP1972 TRY- TP1605
0.022
4 4
TP1971 TRY+
5 5
5
5
GND
CW1931
SPDRR
SPDRF
C1612
0.0056
9
LEAD IN
1 1
1 1
2 2
SLD+ SLDRF
3 3
SLD-
4 4
SP-
5 5
SP+ TP1602
6 6
6
6
TP1603
CW1932
10
11
8
36 are waveform numbers shown in page 86-87.
2
Figure 68 SCHEMATIC DIAGRAM (15/16)
TP1131
1
TP1116
41 40 39 38 37
VCC1 EFMAGC
36
C1123
0.1 EFMO-I
ADAGI
35
AGC
ADAGC
34
C1121
0.22 WBO-I
ADIPNF
33
TP1135
ADIP AGC
ADIPO
32
15
31
GND2
WBO
30
BPF
C1122
1
VCC2 29
OPICPW
28
SW
R1124
TP1133 2.2K
DISC
DISC
27
MODE
SGAIN
26
R1125
2.2K DTEMP
25
20 21 22 23 24
R1121
39K
C1124
0.22
R/P
R1612
150K
29
IC1301
R1614
100K TP1302
EFMO
L1300
4.7µH
R1304
1 8
D1 D2
150
2 7
S1 S2
S1
3 S2 6
G1
4 G2 5
14 13 12 11 10 9 8
1 2 3 4 5 6 7
1 D1 G1 5
HDON
S 4
2 3
D2 G2
R1300
8.2
C1304
220P
TP1606
(CH)
LOADING
MINF
C1606
10
IC1601
M56788FP
MOTOR DRIVER
LEAD IN
R1616
10K
CH3IN REG+
42
1
OUT3 REGB
2 41
+
-
IN3-
IN1+
1.25V
3 40
VBS2
4 39
VBS1
Vm2
38
5
C1610
IN1-
37
6
NC
4.7
OUT1
36
7 GND
VM1-
TN
C1619
8 IN3+ 35
330P(CH)
VM3- VM1+ TP
9 34
GND
10 33
VM2+
VM3+ FP
11 32
GND
VM2- FN
31
12
VM4+
OUT2
30
13
VM4-
R1618
GND
14 29
15K
VM5+
IN2-
15 28
VM5-
16 27
IN2+
OUT5
SLDRR
17 26
MUTE1
IN5-
18 25
MUTE2
IN5+
C1655
19 SS.GND 24
0.015
IN4+
VREF
20 23
IN4-
21 22
OUT4 VREFO
R1624
C1607
R1623
6.8K
1
22K
3 4
– 68 –
R1266
22K
R1261
22K
R1262
22K
R1263
22K
R1264
22K
R1265
22K
3.2V
MINF
7
TP1421
17
D1402
1SS355
IC1402
58X2402T
DSENSE
EEPROM
12
R1406
1 A0 VCC 8
10K
2 A1 WP 7
6
3 A2 SCL
4 SDA 5
VSS
C1403
R1463
0.1 10K
C1601
820P
TRDRF
TRDRR
UN2113
FODRR 2
FODRF
R1606
10K
INNSW
VREF
5
TP1202
100 99
14
TP1201
1
C1201
2
AVCC1
EFMO-I 10
3
EFMI
4
AGND1
5 AVCC2
C1261
C1211
6 VREF
270P(CH)
0.1
WBO-I
7 WBI
TP1250
TCG
8
TCG
AOUT-IN TP1251
9 AIN
BOUT-IN TP1252
10
BIN
EOUT-IN TP1253
11
EIN
FOUT-IN TP1254
12
FIN
13 VBAT
14 VDD1
15
DGND
C1200
16
TEST2
R1200
1
17
X176KO
100K
R1201
FODRF
18
FODRF
R1202 100K
FODRR
19
FODRR
120K
TRDRF
20
TRDRF
R1203
TRDRR
21
TRDRR
120K
R1204
SLDRF
22
SLDRF
82K
R1205
SLDRR
23 SLDRR
82K
R1206
SPDRF
24
SPDRF
62K
SPDRR
25
R1207
62K
26 27
R1420
1K
C1407
0.047
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85
1
4M/16M
2 64M
3 LDVAR
4 ADJS
5 CIN
6
UNLOCK
7
BYTE
8
9 CNVSS
10 STID OUT
11
SEACH OUT
12 RESET
IC1401
13
14 VSS IX0349AW
15
MCCK
MD SYSTEM
16
VCC
MICROCOMPUTER
17
18
DINT
19
SFSY
20 ST-ID
21 SERCH
MDRSW
22
23
CDB SEL
24
DSENSE
25
P-DOWN
26
HDON
27
EEPRO
28 HFON
29
EEPK
30
EEPD
MDDATA
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
R/P
13
R1461
R1430
10K
10K
Q1402
R1424
Q1403
3 47K
UN2213
3
2
1
1
6