Block Diagram - Sony ICF-M410L Service Manual

4-1. BLOCK DIAGRAM

MAIN BOARD
BAND(FM/AM)
ANT101
(TELESCOPIC)
Q5
BPF1
1 B.P.F 3
FM RF
2
FM
L6
TRACKING
CT3
L3 FM OSC
MW
ANT102 TRACKING
(FERRITE-R0D)
CT1
Q1
MW FREQUENCY
COVERAGE
CT2
LW FREQUENCY CT4
COVERAGE
LW
TRACKING
Q3
BAND(MW/LW)
IC1
FM/AM FRONT-END,IF,DET,AF AMP
16 BAND
13 FM RF IN
10 FM RF
L7
CF2 CF3
10.7MHz
IF OUT 15
T1 CF1
450kHz IFT 450kHz
8 FM OSC
VT
AM IF
11
AM RF IN
FM
L4 MW OSC
3
CF4
6 AM OSC DISCRI
7 AFC
9 REG
Q2
BUFFER
KEY BOARD
DIGITAL TUNING SYSTEM CONTROL
15 35 LCD0
LCD101
1 49 LCD14
19 31 COM0
16 34 COM3
6 KEY SCAN0
S101-S114 9 KEY SCAN3
KEY
MATRIX
10 KEY RET0
13 KEY RET3
VDD
S115
OFF
R 51 INT
HOLD
ON
METER 20
DET 24
FM IF IN
18
AF IN 25
Q7
17 AM IF IN
AF OUT 28
B + 27
VOL
5
Q4
RV1
VOL
NF 4
CN1
IC101 W101
VDD
VDD 23
Q153,Q154,T101
BAND(MW/LW) 4
5
BAND(FM/AM) DC/DC
CONVERTER
POWER 2
MUTE 3
52
BEEP
EO 19
VCOL 20
Q101
VCOH 21
AMP
IC102 +3.2V
VOLTAGE DET.
BATT LOW 53 1 VOUT VDD
CE 50 1
VOUT VDD
IC103 +2.5V
VOLTAGE DET.
XOUT 24
X101
75kHz
XIN 25
7 7
Q8,Q9
IC2
3.0V REG
2
1 VOUT VIN
VT
CN2
W102
Q151,Q152
(+13V) TUNING
CONTROL
2
2
ICF-M410L
JACK BOARD
DCJ301
DC IN 4.5V
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
3PCS, 4.5V
EPJ301
(
EARPHONE )
SP301
( SPEAKER )
Signal Path
: FM