Kenwood DPX-MP7050, Service Manual

Page: 23 / 44

DPX-MP7050
23
Z AA AB AC AD
1
2
3
4
5
6
7
10K
10K
5.1V
0V
5.1V
0V
5.1V
0V
4.8V
1.3V
3.4V
0.3V 1.2V 0.3V 1.0V 1.0V 1.2V
3.0V
3.4V
4.5V
0V 0V 0V 0V 0V
0.5V 1.0V
0V
0.6V
0V
37.5V
36.8V
37.5V
0.1V
0.1V
4.3V
0V
VFD1
IC902
IC903
A
B
SUB UNIT
CONTROL UNIT
S902
PLAY AUD
S907
EQ
S912 S916
DSP
S920
ATT
S908
SA SEL
S903 S913
DISP TUN+
S917
TUN-
S921
S909
6
S914
5 4
S918
3
S922
S910
1 2
S905 S928
FM AM
S927
S906
ANG SRC
S901
MD EJ
S919
CD EJ
S915
D944 D945
D957
D947
D946
D953
D949
D952
D956
D948
D951
D950
RESET
S923
D959
Q904
DST
D958
Q903
Q902
Q901
D938
CN901
1/2
MAIN-
CN3
CN601
1/2
MAIN-
CN3
B30-1575-05 D601,602 :
LEVEL
SHIFT
REG IC
DC-CONV SW
VFD
AVR
LED
SW
DISPLAY
BLANKING SW
D602
D601
109 110
111
112
113
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
D8 D7 D6 D5
A19
VCC
A18
VSS
A17
A16
A15
A14
A13
A12
A11
A10
A9
NC
NC
NC
NC
NC
VCC
A8
VSS
A7
A6
A5
A4
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
1
2 3
36 37 38 39 40
41
42 43 44 45 46 47 48 49
FA
C
-
FA
C
-
FA
C
-
SI3 SI2 SI1 CLK SO1 SO2 SO3 GCP LA
T
BK VDD1 VSS VSS VDD2
54
FA
C
+
FA
C
+
53 52
FA
C
+
1
2
3
VCC
GND
CTL
5
4
OUT
REF
16 15 14 13 12 11 10 9
1
2 3 4 5 6 7 8
KR1
KS0 KS1 KS2 KS3 KS4
KR2
KR3
KR4
300
R915 R913
560
R912
560
R910
390
R911
390
0.01
C910
0.01
C911
KR0
470
R925
240
R916
470
R919
0.01
C932
1
C926
0.1
C909
10K
R924
0.01
C924
600
L913
1
L912
600
5
L911
600
44
L914
600
2
L915
600
12
L916
600
32
R909
22
47K
R983
R979
22K
R981
20K
R982
20K
R978
47K
F+
F-
TP901
100
R906
47K
47K
47K
47K
100
R905
100
R904 R903
100 100
R902
100
R901
R962 47K
R963 47K
2.2K
R907
R964
10K
10K
R908
1
C922
0.47
C933
0.47
C934
14
10 12 15
2 4 6
15 12 10
2
4 6
ESD
SI
DC/DC SW
PN SCCON
SYS DATA
PN DATA
PN CLK
SYS REQ
PN REQ
RST
SP INT
SP DATA
SP REQ
DSP CLK
VDD(BU5V)
D GND
D GND
FL+B(50V)
FL GND
ILL +B
ILL GND
ESD
R931 100
3
1
2
5
4
7
6
R929 100
R928 100
25
35
R930 100
33
36
9
8
11
10
R933 100
R932 100
43
19
R934 100
42
26
13
12
15
14
R936 100
R935 100
40
38
R938 100
R937 100
27
18
16
17
R926 1K
R927 100
20
19
21
22
FAC+
FAC-
F+ 23
24 F-
4.7uH
L907
5
NC NC
6
LED OPEN
4 1
PON5V
GND GND
2 3
R601
R602
470
240
Q904
R989
R988
R987
R986 Q901
0.1
C925
TP950
TP949
TP948
TP947
TP946
NC
R975 47K R977 47K R976 47K
TP909 TP908 TP907 TP906 TP910
TP911
TP912 TP913 TP914 TP915
TP902
TP903
TP904
TP905
TP601 TP603
TP602
TP924
TP920
TP918
TP919
TP917
TP916
TP922
TP923
TP921
TP928
TP927
TP925
TP926
TP929
TP930
TP934
TP935
TP931
TP932
TP933
47K
R972
47K
R973
47K
R974
G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17
G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32
CONTROL UNIT (1/2), SUB UNIT (1/1)
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