MD-MX30/MX30W
– 32 –
Figure 32 BLOCK DIAGRAM (1/5)
23
13
12
9
16
10
15
11
14
3
8
17
5
20
6
19
4
2
21
24
1
5
3
7
8
9
10
6
5
4
3
13
11
12
15
16
19
20
21 17
10
24
23
1
7
13
12
6
9
18
3 4
7
6
2
8
1
5
22
20 21
1
17
8
4
2
18
16
14
15
1
2
3
OUT
BASS TRE
OUT
Function/Volume/Tone
AUDIO
REC
SELO
MDDVDD
TO CD
TO DISPLAY
TO MD
M-COM.CONT.
LINE PULL-UP
POWER
ICU01
LC75341M
AUDIO PROCESSOR
1
4
3
2
VDD
VSS
TUNER
MD/CD
AUX
JTU01
AUX INPUT
+5V BACK UP
+5V(USWD)
MW
MUTE
MO/ST
IO2
ST IND
FM
PD
AIN
AOUT
VSS
VDD
IF OUT
CE
DI
CLK
DO
STEREO
ROUT
SD
FM/AM
MO/ST
STEREO
TP301
IC303
LA1832
FM IF DET./
FM MPX./AM IF
AM OSC OUT
AM OSC IN
MO/ST
(FM/AM)
PHASE
FM IN
AM IN
IF IN
IC302
LC72131
TUNER PLL CONTROLLER
XIN
FE301
FM FRONT END
ANT
VCC
GND
GND
GND
FOUT
VT
+5V
VT
Q360
XOUT
4.5MHz
TUNER
TUN MUTE
VCC
Q371
DO
ANTENNA
TERMINAL
FM 75
Ω
AM
GND
SO301B
T306
AM
ANT
COIL
AM
OSC
COIL
T302
X352
IF IN
FM
VCO
MPX
456KHz
X351
CF351
CF352
AM MIX OUT
AM IF IN
FM/AM OUT
AM RF IN
T351
AM IF
FM DET
MPX IN
SWITCHING
FM +B
+B3
+12V
FM/AM
+B3
+5V
VSM
+5V
+5V
SD
TUN MUTE
+B3
+2.7V
DI
CL
CL
VC
+B3
-B3
+B7
+B8
+B14
+7V(M)
+B12
+5V(SWD)
+6V
TO FAN MOTOR
+B5
+B6
QU07
ICU03
PST9140
RESET
RESET
SWITCHING
SYS-STOP
+5V(D)
+B7
TO DISPLAY SECTION
TO CD SECTION
VOLTAGE
REGULATOR
FM MUTE LEVEL
VR351
VOLTAGE REGULATOR
MD
VO
REG
CD+7V
-B3
+B3
+B3
+B13
+B4
-12
+12V(A)
MDAVCC
VOLTAGE
REGULATOR
IF OUT
LOUT
CF302
CNPU01 TO CNPD01
6
7
8
9
10
11
5
12
4
3
2
1
13
14
15
16
18
17
19
21
22
23
24
25
26
27
28
POWER
QU05
QU06
DIGOUT
D.GND
DIGIN
MD-RESET
MD-ST
MD-D-STB
MD-DATA
MD-KDATA
MD-SERCH
MD-DSCK
D.GND
MDDVDD
+B6
PCONTO
MD-LOADSW
LIN
AAGND
RIN
LOUT
BACKUP
MDAVCC
ROUT
AAGND
ADGND
CNPU04
CNS8 TO CNP8
TO MD SECTION
+B4
20
+5V
+5V