ICF-M410S — Sony Audio Service Manual (repair manual)

Model
ICF-M410S
Pages
16
Size
844.5 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-m410s.pdf
Date

View Sony ICF-M410S Service Manual online

ICF-M410S
AEP Model
E Model
SERVICE MANUAL
FM STEREO/SW/MW
PLL SYNTHESIZED RADIO
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
9-873-157-03
2008K00-1
© 2008.11
SPECIFICATIONS
Ver. 1.2  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.
2
TABLE OF CONTENTS
ICF-M410S
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-M410S
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-M410S
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-M410S
SECTION 3
ELECTRICAL ADJUSTMENTS
BAND : MW/SW
• 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.
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.
T1
621 kHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L17
87.5 MHz
CT3
108 MHz
BAND : FM
MAIN BOARD
1
15
16
30
IC1
(Component side)
L4,CT1
SW TRACKING
adjustment
L17,CT3
FM TRACKING
adjustment
T1
AM IF
adjustment
CT2
MW TRACKING
adjustment
L11
MW FREQUENCY
COVERAGE
adjustment
L9
SW FREQUENCY
COVERAGE
adjustment
MW/SW SECTION
MW/SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
SW
L4
5,800 kHz
CT1
15,900 kHz
MW
ANT102
621 kHz
CT2
1,404 kHz
MW/SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
SW
L9
5,800 kHz
MW
L11
531 kHz

Download Sony ICF-M410S Service Manual (Repair Manual)

Here you can view online or download Sony ICF-M410S Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony ICF-M410S Audio. Information contained in Sony ICF-M410S service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).