ICF-M410L - Sony Audio Service Manual (repair manual)

Model
ICF-M410L
Pages
16
Size
823.16 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-m410l.pdf
Date

View Sony ICF-M410L Service Manual online

ICF-M410L
AEP Model
SERVICE MANUAL
FM STEREO/MW/LW
PLL SYNTHESIZED RADIO
9-873-156-04
2008K00-1
© 2008.11
SPECIFICATIONS
Ver. 1.3  2008.11
Speaker: 7.7 cm (3
1
8
 inches) 8 
Power output: 200 mW (at 10 % harmonic  distortion)
Output: v (earphone) jack (ø3.5 mm minijack)
Power requirements: 4.5 V DC, three R6 (size AA) batteries
External power source: DC IN 4.5 V
Dimensions:
Approx.  205 
× 104 × 40.5 mm (w/h/d)
(Approx. 8 1/3 
× 4 1/8 ×
 
1 5/8 inches) not incl. projecting
parts and controls
Approx.  212 
× 104 × 42.5 mm (w/h/d)
(Approx. 8 3/8 
× 4 1/8 ×
 
1 11/16 inches) incl. projecting
parts and controls
Mass: Approx. 504 g (17.8
 
oz
 
) incl. batteries
Design and specifications are subject to change
without notice.
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
2
TABLE OF CONTENTS
ICF-M410L
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
1. GENERAL
·································································· 3
2. DISASSEMBLY
························································· 4
3. ELECTRICAL ADJUSTMENTS
····························· 5
4. DIAGRAMS
4-1.
Block Diagram ····························································· 7
4-2.
Schematic Diagram ······················································ 8
4-3.
Printed Wiring Board ··················································· 9
4-4.
IC Pin Function Description ······································ 10
4-5.
IC Block Diagram ······················································ 10
5. EXPLODED VIEWS
················································ 11
6. ELECTRICAL PARTS LIST
·································· 12
3
ICF-M410L
This section is extracted
from instruction manual.
SECTION 1
GENERAL
*
Telescopic Antenna
TUNE/TIME SET
VOL
DC IN 4.5V
v
 jack
Setting the Clock
The display will flash “0:00” when the batteries are
installed or the AC power adaptor is plugged in for
the first time.
The clock can be adjusted when the radio is off.
1
To stop flashing of the display, press
CLOCK (mb/CLOCK for ICF-M410S).
2
While holding down CLOCK, turn
TUNE/TIME SET to set the clock to the
current time.
When you turn the control knob a little to 
 or
, the clock digits move forward or back one
by one, and when you turn the control knob
further to 
 or 
, the clock digits move
rapidly.
When you release CLOCK, the clock starts
operating, and “:” starts flashing.
24-hour system : “0:00” = midnight, “12:00” =
noon
4
ICF-M410L
SECTION 2
DISASSEMBLY
Note :
Follow the disassembly procedure in the numerical order given.
9
Screw (+PTPWH 2
 
×
 8)
1
Screw (+B 3
 
×
 6)
3
Five screws 
     (+BTP 3
 
×
 14)
q;
Two screws (+P 2 
×
 8)
qf
Two screws 
      (+P 2
 
×
 8)
6
Screw (+PTPWH 2.6 
×
 8) 
7
Side panel (L)
qs
Side panel (R)
qd
Arm (jog)
8
JACK board
qg
KEY board
qj
MAIN board
qh
Knob
2
Antenna, telescopic
Cabinet rear
4
Claws
qa
Claws
Remove the Claws
Remove the Claws
Knob (jog)
5
Plate, contact
Cabinet (front) sub assy
5
ICF-M410L
SECTION 3
ELECTRICAL ADJUSTMENTS
BAND : AM
• Repeat the procedures in each adjustment several times for the
maximum level meter indication.
• The frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
MW/LW SECTION
FM SECTION
[Adjustment Location : Main board] (Component side)
Put the lead-wire
antenna close to
the set.
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
AM RF signal
generator
0.01
µ
F
FM RF signal
generator
telescopic
antenna
terminal
75kHz (100%) amplitude modulation
by 1kHz signal.
Output level : as low as possible
16 
set
+
level meter
Speaker terminal (EPJ301)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T15
450 kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
87.5 MHz
CT3
108 MHz
BAND : FM
MAIN BOARD
(Component side)
CT2
LW TRACKING
adjustment
CT4
LW FREQUENCY
COVERAGE
adjustment
L4
MW FREQUENCY
COVERAGE
adjustment
T1
AM IF
adjustment
L6,CT3
FM TRACKING
adjustment
CT1
MW TRACKING
adjustment
MW/LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
LW
ANT102
162 kHz
CT2
243 kHz
MW
ANT102
603 kHz
CT1
1,404 kHz
MW/LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
LW
CT4
153 kHz
MW
L4
531 kHz
6
ICF-M410L
SECTION  4
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  p: pF.
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
f
: internal component.
C
: panel designation.
A
: B+ Line.
H
: adjustment for repair.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
f
: AM (LW/MW)
The components identified by mark 
0
or dotted line with mark 
0
 are critical for
safety.
• Waveform
2Vp-p
1
 IC101 
wf
 (XOUT)
1.4V
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
: Pattern from the side which enables seeing.
7
7
ICF-M410L
4-1. BLOCK DIAGRAM
: FM
B.P.F
1
3
BPF1
Q2
BUFFER
13
10
8
FM RF IN
FM RF
FM OSC
AM RF IN
6
AM OSC
11
L6
L7
FM RF
L3 FM OSC
9
REG
VT
15
18
17
IF OUT
3
FM
DISCRI
7
AFC
CF2
CF3
CF1
CF4
10.7MHz
450kHz
450kHz IFT
T1
FM IF IN
AM IF IN
2
16
BAND
CT3
Q5
20
METER
24
25
DET
AF IN
Q7
28
AF OUT
27
B +
VOL
5
Q4
NF
RV1
IC1
  FM/AM  FRONT-END,IF,DET,AF AMP
ANT101
(TELESCOPIC)
Q1
Q3
ANT102
(FERRITE-R0D)
CT1
CT2
CT4
L4  MW OSC
BAND(MW/LW)
BAND(FM/AM)
+
SP301
( SPEAKER )
IC2
3.0V REG
VOUT VIN
1
2
Q8,Q9
VT
VDET
VCOL
VCOH
GND
BAND(FM/AM)
BAND(MW/L
W)
MUTE
BEEP
B +
POWER
BAND(FM/AM)
BAND(MW/LW)
MUTE
BEEP
POWER
CN1
W101
CN2
W102
VDD 23
4
5
2
3
52
Q101
AMP
20
21
VCOL
VCOH
DC/DC
CONVERTER
TUNING 
CONTROL
Q153,Q154,T101
Q151,Q152
19
IC102   +3.2V
VOLTAGE DET.
IC103   +2.5V
VOLTAGE DET.
1
1
2
2
53
50
BATT LOW
CE
35
49
9
6
15
1
34
31
16
19
13
10
LCD0
LCD14
COM0
COM3
KEY SCAN0
KEY SCAN3
KEY RET0
KEY RET3
51 INT
VDD
VDD
S115
HOLD
24
25
XOUT
XIN
X101
75kHz
IC101
DIGITAL TUNING SYSTEM CONTROL
S101-S114
KEY
MATRIX
LCD101
Signal Path
VT
VDD
EO
+
VOUT
VDD
VOUT
VDD
4
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
3PCS, 4.5V
(+13V)
FM
TRACKING
MW FREQUENCY
COVERAGE
LW FREQUENCY
COVERAGE
LW
TRACKING
MW
TRACKING
DCJ301
EPJ301
DC IN 4.5V
  EARPHONE )
 (   
VOL
MAIN BOARD
JACK BOARD
KEY BOARD
AM IF
OFF
ON
R
8
8
ICF-M410L
4-2. SCHEMATIC DIAGRAM
IC B/D
  IC-102 S-80732
  IC-103 S-80825
• See page 6 for Wavefoms.   • See page 10 for IC Pin Function Description.
• See page 10 for IC Block Diagrams.
Ver. 1.3
9
9
ICF-M410L
4-3. PRINTED WIRING BOARD
IC101
IC102
IC103
IC2
IC1
MIN
MAX
VOL
RV1
JW3
3
2
1
5
4
C32
1-681-635-
1
5
W1
JW1
JW2
C
E
B
K
K
E
B
1
1
7
7
CN1
CN2
JW5
JW4
C
E
B
E
B
K
K
JW6
CF1
C22
L5
C23
C27
C29
JW7
T1
15
16
1
30
JW8
CF4
C18
JW11
JW10
CT3
L6
L7
C16
BPF1
1
3
K
JW12
CT2
L4
K
E
B
C
ANT101
FM
TELESCOPIC
ANTENNA
MAIN BOARD
11
(11)
12
(12)
JW9
CF2
CF3
ANT102
MW/LW
FERRITE-ROD ANTENNA
C
C
RED
NTL
GRN
BLK
1
4
8
5
CT1
CT4
C
E
B
C
E
B
JACK BOARD
SP301
EPJ301
DCJ301
DC IN 4.5V
C302
JW301
W301
5
1
1-681-636-
K
K
K
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
3PCS, 4.5V
11
(11)
12
(12)
TP22
(RFGND)
TP19
(VT)
TP11
(MW/LW)
TP13
(BEP)
TP12
(MUTE)
TP10
(FM/AM)
TP9
(POWER)
TP20
(MET)
TP8
(+B)
TP21
(+B)
TP1
(GND)
TP18
(VCOH)
TP2
(DET)
TP6
(GND)
TP7
(SP+)
TP5
(GND)
TP4
(VDD)
TP15
(VDET)
TP3
(+B)
TP16
(3V)
TP17
(RFGND)
TP14
(VCOL)
S102
POWER
S115
HOLD
S106
S105
S104
S108
S103
SLEEP
S111
PRESET
TUNING
1
S112
PRESET
TUNING
3
S110
PRESET
TUNING
2
S113
PRESET
TUNING
5
S114
PRESET
TUNING
4
S107
STANDBY
S101
CLOCK
S109
BAND
SELECT/        PRESET
TP112
(VCOH)
TP107
(VCOL)
TP109
(GND)
TP113
(RFGND)
TP114
(VT)
TP110
(3V)
TP108
(VDET)
TP101
(+B)
TP111
(GND)
TP106
(BEEP)
TP116
(13V)
TP115
(ED)
TP102
(PO
WER)
TP103
(MUTING)
TP104
(MW/SW)
TP105
(FM/AM)
LCD101
1
5
10
15
19
1
14 15
28
29
42
43
56
JW122
JW111
JW112
JW113
JW114
JW115
JW116
JW103
JW119
JW18
JW117
JW110
JW109
JW108
JW102
JW101
JW107
JW106
JW105
JW104
JW120
X101
T101
C123
C156
C153
W101
W102
1-681-634-
11
(11)
KEY BOARD
C119
R140
R137
R101
C122
C118
R136
R134
R141
R133
R132
R139
R131
R130
R129
R128
C117
R127
R126
R125
R124
R123
R122
R121
R120
R119
R118
R117
R116
R138
C116
C114
C113
C111
C112
C110
C115
R115
C109
R108
R105
R151
C158
C152
C131
R152 C151
R142
C132
C121
Q151
Q152
E
E
Q101
E
R147
C135
R148
C136
R146
JW121
R142
R149
C137
CJ101
C159
CJ102
CJ107
1
1
C134
C133
R144
R143
C120
C121
1 2
3
4
1 2
3
4
Q154
E
Q153
E
R154
R158
C157
R157
D102
D101
C155
R155
R156
C154
L101
K
K
R112
R111
C108
C104
C105
R109
C107
C104
C102
R106
C101
R110
JC106
JC105
R107
C103
R152
R104
R102
R103
JC103
ON
OFF
t
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
Ref. No.
Location
D101
D-4
D102
D-4
IC101
B-2
IC102
B-4
IC103
B-3
Q101
B-3
Q151
B-3
Q152
B-3
Q153
C-4
Q154
D-4
• Semiconductor
Location
KEY BOARD
Ref. No.
Location
D1
G-1
D2
G-3
D3
F-4
D4
G-4
D5
G-6
D6
F-7
D7
G-7
D8
G-6
IC1
G-5
IC2
G-7
Q1
F-3
Q2
G-5
Q3
F-3
Q4
H-2
Q5
F-6
Q7
G-6
Q8
G-7
Q9
F7
• Semiconductor
Location
MAIN BOARD
Ver. 1.2
10
10
ICF-M410L
4-4.
IC PIN FUNCTION DESCRIPTION
• IC101 uPD17072GB-565-1A7(DIGITAL TUNING SYSTEM CONTROL)
4-5.
IC BLOCK DIAGRAM
IC1 CXA1019S
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35-49
50
51
52
53
54
55
56
I/O
O
O
O
O
O
O
O
O
O
I
I
I
I
O
I
I
O
O
I
O
O
O
O
O
O
O
O
I
I
O
I
I
Description
For pull-up of INITIAL, L:CE = at  L
Radio power control signal output.
Muting signal output.
“Band select signal output. L:MW, H:LW/SW”
“Band select signal output. L:FM/TV, H:AM”
Key source signal output.
Key source signal output.
Key source signal output.
Key source signal output.
Key return signal input.
Key return signal input.
Key return signal input.
Key return signal input.
Not used.
Not used.
Not used.
Not used.
Ground.
Error signal output.
AM VCO (local oscillation) frequency input.
FM VCO (local oscillation) frequency input.
Regulater for PLL output.
Power supply (+3V).
Pin for connecting crystal resonator for system clock.
Pin for connecting crystal resonator for system clock.
Regulater for PLL output.
LCD drive voltage output.
Pin for capacitor connection for LCD drive voltage.
Pin for capacitor connection for LCD drive voltage.
LCD drive voltage output.
LCD common signal output.
LCD common signal output.
LCD common signal output.
LCD common signal output.
LCD segment signal output.
Chip select emable input.
Hold input. L:ON
BEEP signal output.
Low voltage detect signal input.
Not used.
Connected to L.
Not used.
Pin Name
VOUT
POWER
MUTING
BAND(MW/SW)
BAND(FM/AM)
KEY SCAN0
KEY SCAN1
KEY SCAN2
KEY SCAN3
KEY RET0
KEY RET1
KEY RET2
KEY RET3
NC
NC
NC
NC
GND
EO
VCOL
VCOH
REG 0
VDD
X OUT
X IN
REG 1
REG LCD0
CAP LCD0
CAP LCD1
REG LCD1
COM 0
COM 1
COM 2
COM 3
LCD 0 - 14
CE
INT
BEEP
BAT LOW
NC
INITIAL
NC
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND

Download Sony ICF-M410L Service Manual (Repair Manual)

Here you can view online and download Sony ICF-M410L Service Manual in PDF. ICF-M410L service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony ICF-M410L Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.