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Kenwood MDX-G1 Service Manual page 18

Md personal stereo system
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AE
AF
(X09- ) (A/6)
CN54
Q Q
PLL CE
11
85
3 7 6 3 1 5 1 5 0
C860 100P
PLL DT
10
84
C861 100P
PLL CLK
9
83
PLL DO
8
86
9.1V
+9V
7
+9V
+9V
TU OUT L
6
14
TU AGND
5
TU OUT R
4
24
TU AGND
3
SD
2
82
ST
1
81
CN55
R775
C593
R579
R577
100
2.2u50
2.2K
2.2K
ALOUT
18
+
CD AGND
17
CD (Lch)
3.7V
AROUT
16
OP/CL SW
15
24
IC56
MCLK
14
28
MDATA
13
30
CD OPE
MLD
12
23
AMP
BLKCK
11
20
(BOTTOM VIEW)
SQCK
10
7
SUBQ
9
6
R776
C594
R580
R578
STAT
8
29
100
2.2u50
2.2K
2.2K
XRST
7
4
+
SLTSW
6
3
5.3V
+5V
5
+5V
TXOUT
4
RGND
3
MGND 2
7.6V
+7.5V
1
+7.5V
4.8V
+5V
4.7V
5.2V
+5V
WH69
T E
L
1 3 9 4 2 2 9 6 5 1 3
5.2V
100
SEL CE
C761 0.022
99
AVCC (BU)
C762 0.022
98
+5V
VREF
97
NC
96
AVSS
95
TYPE
94
94
KEY2
93
93
KEY1
D504
92
PROTECT
R545 47K
91
CD PROTECT
90
R544 47K
NC
89
NC
+B
88
NC
C859 100P
87
NC
R543 1K
86
86
PLL DO
C858 100P
R703 1K
85
85
PLL CE
C857 100P
R702 1K
84
84
PLL DT
C856 100P
R802 1K
83
83
PLL CLK
R785 220
82
82
SD
R784 220
81
81
ST
R557 47K
R556 47K
w w w
+5V
+9V
.
+7.5V
AG
AH
C544 100P
R516 1
+9V
R514 220
E,VOLUME
SYSTEM IC
IC53
7.6V
R583
7.5V
22
+7.5V
C597
R571
R701
5P
2.2K
2.2K
3.7V
R517 220
1
R515 220
100
3.7V
C598 5P
R572
R700
3.7V
2.2K
2.2K
R508
4.7V
2.2
+5V
+7.5V
R507 2.2
+5V
C506 69P
RESET
R505
C504
1K
1u50
+
Q8
C802
47u6.3
+
+5V
+5V
C826
C562 1
0.1
R534
X502
1
X501
10MHz
R532
4.7M
IC51
(BOTTOM VIEW)
u-COM
C760
0.022
+5V
9.1V
5.2V
+9V
x
a o
u 1 6 3
y
D408
D420
C854 0.1
7.6V
i
+7.5V
+B
5.2V
C416
C418
C417
220u10
C413
47u25
47u25
+
+
+
33P
C853
C852
C851
1
1
0.1
VOLTAGE BOOST
IC44
REGULATOR
(+5V/+7.5V/+9V)
AI
AJ
C758 1
R518 2.7K
25
8
20
C754
R780
1
27K
755
R779
4.5V
1
27K
C517
C759
R519
1
TUNER (Lch)
1
2.7K
Lch
RESET IC
D501
+5V
5.1V
+5V
4.8V
+5V
+5V
POWER AMP
IC42
+5V
IC52
D502
4.2V
+5V
+5V
Q
Q
5.0V
3
7
6
3
1
C429
C428
330P
330P
R421
R420
3.9K
3.9K
Q405
Q404
31
MD TXD
MUTE
32
MD RXD
33
AMP
+5V
34
A MUTE
35
FL DATA
35
36
+B
NC
37
FL CLK
37
38
EEP SDA
39
EEP SCL
40
NC
41
R708
NC (EMP)
42
51K
NC
43
NC
44
NC
45
R707
NC
46
51K
4.8V
(CE)
47
LED STBY
47
48
LED TIMER
48
49
FL RST
49
50
FL CE
50
D424
4.6V
+5V
+B
+5V
+5V
D417
14.8V
.
+B
+B
5.0V
+5V
D416
IC43
11.5V
15.4V
+5V
+5V
VCC
+B
+B
GND
+5V AVR
AK
AL
L501
+5V
2
4
9
9
8
L506
(X09- ) (F/6)
R760
1K
WH70
REC
3
3
GND
(Rch)
2
2
1
1
Lch
Rch
R761
J701
1K
AUX IN
C822
1
+5V
3
DIGITAL REC
41
GND
2
1
5.0V
+5V
IC54
(BOTTOM VIEW)
+5V
5.2V
+3.5V
INPUT
PRE DRIVE
OOUTPUT
AMP
AMP
AMP
REF
PROTECTOR
AMP
INPUT
PRE DRIVE
OOUTPUT
AMP
AMP
AMP
POP SOUND
STANDBY
PREVENTION
RIPPLE
SW
BLOCK
FILTER
5
1
5
0
8
9
2
4
AUDIO
MUTE CONT.
R414
Q406
1K
14.8V
35V
+5V
+B
15.4V
-32.6V
+B
+B
35V
35V
IC41
1.5V
POWER
RELAY
4
3
NC
CE
D427
2
7.5V
IN
+B
5.1V
5
1
+5V
OUT
GND
Q402
D428
2.8V
D429
+5V AVR
D430
T402
D423
R403
D422
1M
Q403
D425
D426
5.9V
3.1V
3.7V
K401
Q401
5.1V
17.5V
+5V
+B
35V
R409
D410
m
1K
D411
5.7V
c o
D412
T401
16
8
D413
5
9
S5
7
17
6
-32.6V
10
6
D406
35V
11
S4
5
13
12
12
12
13
S2
13
14
4
D405
14
15
S1
3
15
15
16
2
14
16
17
S3
1
17
AM
AN
CN51
5.0V
+5V
26
H+5V
2
9
9
25
HGND
3.5V
+3.5V
24
+3.5V
23
BACKUPV
32
22
MD TXD
31
21
MD RXD
R553
L505
47K
20
BACKON
25
19
MD CE
26
18
MECHA RST
17
AINR
S-6
C810
220P W850
16
DGND
15
AINL
14
SWGND
13
DGND
L504
12
AGND
20
11
AOUTR
L503
5.0V
+5V
10
D+5V
9
AOUTL
8
MD IN SW
7
DIN2
L502
5.0V
6
M+5V
C800 33P
L600
4
5
DIN1
4
M+5V
5
+B
3.5V
3
MGND
C816
2
DOUT
L860
0.01
1
MGND
LEVEL SHIFT
(5V
35V)
R774
CN52
270
47
15
LED STBY
R773 270
48
14
LED TIMER
35V
13
-35V
12
GND
+5V
11
+5V
49
10
FL RST
R772 3.3K
37
9
FL CLK
1
50
8
FL CE
R771 3.3K
35
7
FL DATA
AT-5
6
6
F2
5
5
F1
9
8
2
9
9
18
4
REM
+5V
3
VREF
93
2
KEY1
1
KEY1 2
CN53
94
5
KEY2
C814 0.01
4
KEY1 2
3
GND
2
2
VREF
4.8V
+5V
1
NC
AT-6
CN41
1
SP (L)
2
C435
1000P
CN42
2
SP (R)
1
C434
1000P
J402
R422
R783
110
110
R423
220
HEADPHONES
J401

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