Kenwood DM-3090 Service Manual page 35

A B
IC1101 : IR3R55
IC1201 : LR37648
R1902
IC1202 IX2474
: 1.8K
IC1251 : TC74ACT02F WRITE
1
PRO
IC1401 : IX0227AW
SW1951
IC1402 : S29294A
IC1601 : M68758FP
R1901
IC1801 : XC82EP32 DISC ID
470
IC1906 : TC7ST08F
SW1952
IC1907 : TC9246F
IC1916 : 74VHC08F
IC1990 : 74AC04FS
LEAD IN
Q1251,1252 : 2SK2909 SW1953
MD157
Q1253,1254 : 2SK1473
R1904
Q1401,1403 : RN2404
PLAY
820
Q1402,1404 : RNC1404
: RNC1407
Q1451,1821,1822
SW1954
MO195
Q1601,1801,1807 : 2SA1314C
Q1802,1803 : RN1406
2
REC
Q1820 : 2SA1162G
SW1955
D1251,1252 : SB80209CP MO159
D1990
: 1SS372
LOADING
SW1956
MO156
DIGITAL LINE
SIGNAL LINE
GND LINE
+B +B LINE
3
CN1101
SW
28 28
R1100
+2.8V
27 27 +B
B 27
26 26
LVVOUT
( 4 ) 25 25
APCOUT
( 3 ) 24 24
1 8 LDVCC
VCC 23 23 +B
DGND
22 22
2
7 DGND
GND 21 21
LDON R1106
6
20 20 72
3 10K
LDVAR
( 3 19 19 3
)
4 5 A
( 4 ) 18 18 9
COM
17 17 +B
4
I/V RF1
16 16
F
15 15 12
E
14 14 11
I/V RF3
13 13
I/V RF4
12 12
VCC
11 11 +B
AGND
10 10
MP/R
9 9 39
I/V RF2
8 8
APCIN
7 7
DGND
6 6
5
LVVIN
5 5
F.COIL F-
4 4 13
T+
3 3 9
F+
2 2 12
T.COIL
T-
1 1 8
CN1602
SLD+
(
1 1 29 )
SLD-
FM
2 2 ( 28 )
6
FEED
MOTOR
CN1603
SP+
1 1 ( 34 )
SP-
DM
2 2 ( 35 )
DISC
MOTOR
CN1604
TRY+
1 1 ( 31 )
TRY-
LM 2 2 ( 30 )
LOADING
MOTOR
7
C D
CN1901
CW1901
LEAD IN
1 LEAD IN
HINF
2 HINF
GND
3 GND
LOADING
4 LOADING
L1251
MINF 47uH
5 MINF
C1255
4.7
Q1252
REC HEAD
CW1903
C1251
1 1
0.027
R1251
10
2 2 Q1251
CN1252
Q1253
Q1254
3.2V
C1111
0
R1107 RF AMP
1
0.7V RF2 EFM
1
AGC
0.8V 2 RF1
0.8V 3 RF4
DIFF
0.8V 4 RF3
DIFF
ADIP
C1102
1.6V 5 REFI
AGC
1
C1103
1.6V 6 REFO
1 LPF
C1104
0.7V 7 RFADD
BIAS
0.027
R1105 1.6V 8 TCGI
390K
1.6V 9 AIN
( 9 )
1.6V 10 BIN
( 10 )
1.6V 11 EIN
( 11 )
1.6V 12 FIN
( 12
)
LOGIC
C1105
1
3.2V
+B
+B +B
E F
+B +B
+B +B
HEAD
DRIVER
4.9V
+B
3.2V
1
3.2V 2
+B +B
1.6V 3
4
1.3V 5
( 5 )
1.9V 6
( 6 )
3.2V 1.6V 7
( 7
)
1.3V 8
( 8 )
1.9V 9
( 9 )
10
1.6V 11
+B +B
( 11 )
12
+B
EFM OUT
13
14
15
16
1.6V 17
R1653
1.4V 18
( 18
)
100K
R1651
1.9V 19
( 19 )
100K
R1657 1.7V 20
( 20 )
120K
R1655
1.6V 21
( 21
)
120K
ADIPI 36 1.6V
R1661
1.7V 22
( 22 )
82K
1.6V 23
( 23 )
ADIPO 35 1.6V
R1665
2.0V 24
( 24
)
NC 34
62K
R1663
1.3V 25
ADLPFO 33
( 25 )
62K
22KO 32 1.6V
HPF
22KI 31
R1102
WBO 30 1.6V 560
11
TCCO 29 1.6V R1154
7
22K C1116
R1153 270P
AOUT 28 1.3V
5
22K C1115
BOUT 27 1.3V R1152 270P
8
22K C1114
R1151 270P
EOUT 26 1.9V
6
22K C1113
R1150 270P
FOUT 25 1.9V
9
22K C1112
270P
+B +B
L1102
0.47uH
+B
G H
+B +B
+B +B
+B +B
C1208 C1209
0.047 1
FEMMON
AVCC
EFMI
AGND
AIN
EIN
TCG
BIN
FIN
VBAT
WBI
VDD1
DGND
DSP
TEST0
SERVO
EFM/ACIRC/ATRAC
TEST1
ENCODER/DECODER
TEST2
X176KO
FODRF
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
3.2V
+B
4M BIT
D-RAM
+B
+B +B +B
I J
+B
+B
+B
DIGITAL
75
OUT
FEMON
74
1.0V
DADATA 74
73
0.9V
ADDATA
72 1.4V RC120
DFCK 72
0
71 1.6V
BCLK 71
70 1.6V
LRCK 70
3.2V
DIGITAL
69
DGND REC
R1281
68
VDD3 +B +B
47
R1254
67
DOUT
220
66 R1255
1.6V
DIN
0
0V R1201
DIGITAL
65 150 C1204
XO IN
12P
64 C1205
XI
C1203
12P
63 1
DGND
62
VDD1 +B +B
61
VPO R1266
60 10K
3.2V
VXI
R1261 10K
59 3.2V
CDBCLK +B
58 3.2V R1262 10K
CDLRCK
57 3.2V R1263 10K
CDDATA
56
TEST4
R1269
55 1.6V
TEST3
0
54
1.6V
TESO1
53
EXPORTI
52
EXPORTO
51
X700KO
0V
R1221
220
1.6V
1 14
VCC
13
2
3 12
11
4
1.5V
D1990
5 10
+B
9
6
7 8 C1990
GND
1
4.3V
INVERTER
+B
+B