Block diagra
m
FIC4/HIC4
BA4560 x2
MX-G500R
UIC1
LC86P6548
MICOM
ECW1
74HCU04
AIC1
STK402
-040
OIC1
AIC2
STK402
-190
FIC1
TDA7442D
SOURCE
SELECTOR
& E.VOL
IC101 RF ANAL
SSP KB9226
TAPE IC
HA12235F
IC201
5L9290
DSP
RCW5
ECO CIRCUIT
PJ3
IC301
KA9258D 4ch D
IC401 KA3082
IC402 KA3082
-
MX-G500RMX-G500R
/5
saf
s
k
s
l
l
l
l
l
s
6
)
01
)
6
)
pla
y
l
p
U
R
/5
/5
/5
Standard schematic diagram
Main section
To UCW
Sheet 2/5 (5, A
To CON
Sheet 5/5 (2, B
To ACW1
Sheet 3/5 (5, A)
FCW2
To CW107
Sheet 4/5 (4, G)
To CW10
Sheet 4/5 (5, G
To ACW2
Sheet 3/5 (4, A)
To ECW1
Sheet 2/5 (5, C)
HEET
N
CIRCUIT DESCRIPTION
MBE
Main
1
FL dis
2
Am
4
uner
& System contro
MAIN signa
TUNER signa
CD signa
APE P. signa
signa
ts are
ety assurance part
When replacing those parts ma
sure to use the specified part
HEET 1
-
3
FL display & System control section
5
CW3
)
MX-G500R
To F
Sheet 1/5 (5, A
To USW7
To CW105
Sheet 4/5 (1, E)
To RCW5
Sheet 1/5 (2, G)
To USW5
To USW2
To USW1
HEET 2/
-
3/5
g
k
s
l
Amp. section
2
)
2
)
To FCW
Sheet 1/5 (5, G
To RW
Sheet 1/5 (3, G
MX-G500RMX-G500R
Parts are safety assurance parts.
MAIN signa
When replacin
sure to use the specified part
those parts ma
HEET
-
5
/5
l
D sectio
n
(
)
d
d
MX-G500R
To RCW6
SHEET 1/5 (3, A)
To OCW
SHEET 1/5 (4, H)
ensor boar
witch boar
SHEET 2/5
5, D
CD signa
HEET 4
-
Tuner
section
6
MX-G500RMX-G500R
AM LOOP
4148
D1
R10
4148
D2
10K
FM ANT
473K
C7
X-TAL
7.2MHz(12p/US)
FM TUNER (KST-F404VA-7 4GANG)
2134 5678
NC
AGC
ANT
220
R9
223
15K
C1
R1
SVC348
MA
A27
6
2 1
S
4 5
3
S
S
6
2 1
4
3
LA
00011A
GND
X-OUT
20
19 18
VT
22K
MO
6
4
3
2
1
2.2uF/35
EC3
A IN
60LMO
+
VCC
223
C2
1
2
S
3
S
4
5
S
6
S
1K
2.2K
R21
R20
PD
GND
R2
D4
Q3 Q4 Q5
DTC143TK DTC143TK DTC143TK
C12
103K
A OUT
17 16 15 14 13 12 11
LC72131MICO2
123
X IN
221
C16
456789
DO
DI
CE
CLK
R26
10K
R17
10K
+
LO
00007A
5.6K
R18
Vdd
MW/LW
IF OUT
***
R3
R11
47uF/16
EC2
150
C8
FM OSC
MO/ST
OSC OUT
10
100K
R13
AM OSC
AM/FM
R4
030
C41
100
FM
IF REQ(MUTE)
102
C9
IF COUNT
10
SW
CF1
102
C10
C13
SFE10.7MJA10-A
47uF/16
EC5
101
Q1
3142
103K
C5
330
470
R8
R7
151413
0.47uF/50
EC18
10uF/16
EC13
1uF/50
EC19
+
2.2K
R34
3.3K
R36
5.1K
R47
822
+
3.3K
1uF/50
EC15
C45
B.P.F
++
R32
2.2uF/35
EC10
5.1K
R44
+
822
C46
01011-101 x 2
B.P.F
2.2uF/35
EC11
R33
10uF/35
EC16
3.3K
5.1K
R45
3.3K
R46
+
10uF/16
EC12
++
1uF/50
EC17
+
223
1uF/50
10uF/16
104
223
C6
10K
SVR1
12K
R15
30 2729 28 26 25
104
EC7
EC8
C42
C19
++
IC01
1234 56 789101112
+
473
10uF/16
EC6
C11
560
R52
CF2
SFE10.7MS3A
AM IF
75E-380
473K
C27
+
47uF/16
EC14
***
R38
CF4
FILTER
LTSD450B
47K
47K
R51
R50
5.1K
102
R14
C20
4.7uF/35
EC9
R31
10K
393
C22
2324 22 21 19 18 17 16
LA1837
150
R42
4.7K
R41
223
C23
C24
392
C21
20
47
R43
473
473
***
C29
C28
R40
FD
A33S
2.2K
R35
3.3K
183
C25
183
C26
R37
47p
C61
4.332MHz
2.2K
R61
R62
16 15 14
X-TAL
39K
56p
C62
13 12 11
10 9
BU1924IC03
Z3.3V(1/2W)
10uF/16
D5
++
EC21
123
470
R63
2.2uF/35
EC22
456
102
C64
473
3.3K
C63
R64
78
560
C65
560
3.3K
R5
R6
R12
100
Q2
A114EK
1K
R16
100
R19
RDS GND
100
33p
C68
10K
R28
R39
560
R30
+
473
47uF/16
C30
EC20
473
C44
473
C43
RDS
STEREO
Vcc 12V
220
C15
L-OUT
GND
R-OUT
180
C14
TUNED
123456
1K
1K
R23
R22
DATA IN
CE1
7
8910
CON 01
330
C68
1K
R25
DATA OUT
D-GND
11
104
C49
Z5.1V(1/2W)
D3
RDS DATA
RDS CLK
To FCW1
1312
SHEET 1/5 (4, A)
1K
R24
CLK1
FM/ TUNER signal
AM signal
SHEET 5/5
2-
H
MX-G500R
boar
ed cir
Print
Main
cuit boards
d
Main board
Headphone jack board
Trans. board
Fuse board
-
8
Front board
MX-G500RMX-G500R
CD switch board
Front board
Front key board
2-
9
Amp. board
MX-G500R
-
MX-G500RMX-G500R
0
d
D boar
Tuner board
ECO board
2-1
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