Kenwood 1050MD Service Manual page 20

P
ELECTRIC UNIT
(X25-594X-XX)
QQ
3 7 63 1515 0
1
CN2
H GND 29
512fs 28
+5V 27
+5V 26
D OUT 25
H+5V 24
D IN 23
3.3V 22
2
GND 21
LOAD-OUT 20
GND 19
LOAD-IN 18
M+5V 17
LRCK 16
MECHA.
M+5V 15
MBL-3
DADT 14
1/3
M GND 13
BCK 12
B M GND 11
ADDT 10
SCTX 9
SDA 8
3
MNTO(FOK) 7
MNT3(SLOCK) 6
SWDT 5
WRPWP 4
XLATCH 3
SRDT 2
SCLK 1
TE
L 13942296513
CN3
SENSE 1
4
MNT1(SHCK) 2
DQSY 3
DIG-RST 4
SQSY 5
MECHA.
SCL 6
MBL-3
XINT 7
1/3
MNT2(X BUSY) 8
LDON 9
A
GND 10
MOD 11
REC-P 12
REFRECT 13
PB-P 14
5
PROTECT 15
CHACK-IN 16
STTLMT 17
DISC-IN 18
+5V 19
CN4
TM SW 1
REM 2
DRDT 3
DRCK 4
DRCE 5
AC 6
AC 7
-33V 8
6
G
FL GND 9
u+5V 10
KDO 11
KD2 12
www
uGND 13
KD1 14
KD3 15
ENCA 16
ENCB 17
7
Q
DIGITAL
PLAY
+5V
+5V
3
7
+5V
3 STATE BUFFER
C325 0.01
IC39
1
2
1
3
3
4
0V
0V
5
R304
4.9V 6
100K 0V 7
4.8V 8
3.3V 9
5
10
5
3
1
33
9
16
11
13
18
R312
19
18K
28
24
27
23
26
25
+5V
57
44
2
R390
1
330
72
R309
100K
6
5
-33V
+5V
53
55
54
x ao
56
R246
100
63
. i
R247
100
60
R
+5V
IC38
BUFFER
1 3.4V
(
)
1 VCC
4.9V
2
(
3.3V )
31
3 3.4V
( )
3
4.9V
4
( )
36
5
(
)
5
R389
1K
6
( )
65
2.4V
7
GND
INPUT/OUTPUT
3.3V CONTROLLER
(
)
20 13
5.0V
19
18
3 STATE BUFFER
0V
17
IC37
16
34
15 1 14
VCC
0V
2 13
35
14
12
R305
13 100K 0V
3
12 0V
4 11
11 R306
5 10
100K
9
20
6
3.3V Q Q 0V
3 6 7
7 8
GND
4.9V
3.3V
IC36
3.4V
14
1
VCC
( )
1
13
5.0V
2
(
)
48
0V 3 12
( )
3
11
0V
4
( )
50
3.3V
5 10
(
)
5
9
4.9V
6
(
)
21
8
7
GND
BUFFER
+5V
5.0V
-33V
IC35
+
1
IN2
2
+5V VCC
0.6V 3
( )
3 OUT2
4
NC
5
GND
R317
6
+5V
VS
8.2K
0.6V 7
( )
7 OUT1
2.7V 8
VREF
R316 R318
9
12K 33K IN1
Q25
u163
LOADING
y
VOLTAGE
CHANGE-OVER
LOADING DRIVER
S
2 9 9 4
8
28
+5V
1.7V
14
0V
+5V
13
( )
7
12
12
11 1.1V
MEMORY
CHIP
1.6V
SELECT
10
CONTROLLER
9
5.0V
8
8
1.7V
+5V
Q27
0.5V 0V
+5V
D29
(
3
(
4
( )
22
1 3 1 5 0 5 8 2 9
(
)
27
( )
7
(
)
11
+5V
(
)
10
( )
28
ON:0V
+5V
OFF:4.9V
3.3V
(
)
11
X
R372
13
100K
4.9V
(
)
13
32 ( )
14
3.0V
(
11 )
15
4.3V
( )
16
(
45 )
17
9 ( )
18
3.3V
(
)
19
47 ( )
20
4.9V
(
)
21
(
)
23
( )
24
(
)
25
( )
26
( )
27
( )
28
5.0V
5.0V
m
co
.
T
2 8 +5V
9 9
-33V
+5V
Q30
R319
100K
0V
Q31
IC34
CN9
8 7 6 5
8 7 6 5
CN8
+5V
0V
)
0V
)
5.0V
5.0V
9 4 2 8 9 9
0V
5.0V
4.9V
0V
0V
R326
1.8K
R327
1.8K
R388
1K
0V
4.9V
4.9V
4.9V
0.3V
4.9V
R336 2.7K
R307 100K
R339 100K
R340 100K
R343 100K
+5V
+5V