Kenwood DPX502 Service Manual page 27

P
to DC CORD
TP116
12 13 14 15 16
5 4 3 2 1
29
SW5V
BU
IC2
A8V REF
POWER SUPPLY
TP109
9
A8V
14.4V
IC2
OUT IN
1.3V
GND
0V
Q16
BU5V AVR
TP110
Q3
Q4
9
SERVO+B AVR
TP111
Q5
SERVO+B
Q6
Q7
SW20V
TP112
Q8
SURGE
PROTECT
Q9
for IC1
ILL+B AVR
Q10
TP107
ILL+B
Q12
SW REGULATOR
C17
100u25
+
13.6V
TP108
C18 0.1 L2
100uH
2
D9
R17 68K
3
D5V
C19 0.1
R14 R15
62K 15K
0V 4
R18 C20
5
C22
4700P 100K 2200P
6
5V
R16
0V 7
1K
D5V
Q
F1 (10A)
(F52-0023-05)
FUSE
16
R769
100K
D1 TP114
5.0V
1
16
3.3V
0V 2
TP115
C941 68P
116
5V
C1
R783
0V 3
3300u16
76
100 0V 4
+
C930 0.1
16
5.0V
1
3.3V
0V 2
A8V 115
AVR 5V
Q1
0V 3
0V 4
19
Q2
DC VOLTAGE
REGULATOR
IC708
D2
5.0V 3.3V
IN0-R
SW
14V
11
2.6V
2.6V
Q17
0V
C720
680P
Q11
Q18
IC1
1
VIN
SW
13.4V
0V
RT 1.0V
GND1
FB
2.0V
INV 1.2V
11
EN
11
15
18
R
C751
0.01
IC709
16
5.0V
8
VCC
7
5V
R782
6 0V
35
100
3.3V
5 0V
GND
IC709,710
INVERTED
IC710 3-STATE
117
OUTPUT
8
VCC 5.0V
7
R784
5V
100
6 0V
3.3V
5 0V
GND
SW5V
19
D700
LDO REGULATOR
IC716
3.3V
TP708
1 5 1.8V
VDD VOUT
0V 2
GND
3 4
CE NC
TP707
3.3V
A8V
OP-AMP (LPF)
C725
IC704 0.1
5.0V
1 8
VCC
7 2.6V
2
3 6 2.6V
4 5
GND
2.6V 2.6V
20
C728
680P
20
IC700
D/A
CONVERTER
3.3V
5V
0V
0V
3.3V
0V
C700
10u35
+
21
21
S
DPX502/502U/502UY
DPX-MP5100U
QUAD 2-INPUT
AND GATE
16
IC712
3.3V
3.3V 14
5V VCC
1
13
A1 0V
B4
2
12
33 B1
3.3V A4
3
11
118 Y1 0V
Y4
4
5V
10
A2
0V B3
5
B2
3.3V
6 9
121 Y2 0V A3
7 8
GND Y3
0V
C756
0.01
19
3.3V
19
31
NC31
32
iPod
CLOCKOUT
33
AUTHENTICATION
NC33
COPROCESSOR
34
NC34
35
IC702
NC35
36
NC36
3.3V
37
NC37 0V
38
NRESET
0V 39
VSS
40
VCC2
3.3V
0V
X700
32.768kHz
20
3.3V
IC705
POINT
REGULATOR
8.0V
1.2V
3.3V
0V
0V
IC703
DIGITAL
AUDIO
RECEIVER
3.3V
0V
3.3V
15
18
X34-560x-xx (4/6)
T
5V
0V
45
3.3V
0V
M-RST
46
CONVE
5V
0V
Q70
3.3V
0V
Q704
0V
20
SPISOMI
R718 47
19
SPISIMO
0V
R719 47
18
SPINSS
3.3V
17 R720 100
ROSC
0V
R721 47
16
MODE2
3.3V
R722 10
15
0V I2CSDA
14
NC14
R723 47
13
0V MODE1
R724 47
12
GND
MODE0
R725 1K
11
CPREADY
3.3V
3.3V
0V 0V
0V
3.3V
0V
20
1.8
TP705
24
3.3V
3.3V
0V
0V
3.3V
0V
24
2
27