Sony ICF-703S User manual

– 1 –
Ver 1.1 2001. 09
Sony Corporation
Personal Audio Company
Shinagawa Tec Service Manual Production Group
9-927-916-12
2001I0400-1
© 2001. 9
SERVICE MANUAL
AEP Model
Australian Model
ICF-703S
FM/SW/MW 3 BAND RADIO
(Photo:BLACK)
SPECIFICATIONS
Frequency range:
Band ICF-703S
FM 87.5 - 108.0 MHz
SW 5.95 - 18 MHz
MW 530 - 1605 kHz
Speaker
Approx. 10.2 cm (4 1/8 inches) dia. 8 ohms
Power output
430 mW (at 10 % harmonic distortion)
Output
vjack (ø 3.5 mm minijack)
Power requirements
With the suppliedAC power cord:
220 - 230 VAC, 50 Hz (AEP model)
240 VAC, 50 Hz (Australian model)
With four R6 (sizeAA) batteries: 6V DC
Dimensions
Approx. 265 ×137 ×69 mm (w/h/d)
(10 1/2 ×5 1/2 ×2 3/4 inches) incl. projecting parts
and control with carrying handle pushed in.
Mass
Approx. 1019 g (2 lb 4 oz) incl. batteries
Supplied accessory
AC power cord (1)
Design and specifications are subject to change without
notice.

–2 –
mark Center
Frequency
red 10.70 MHz
blue 10.67 MHz
orange 10.73 MHz
black 10.64 MHz
white 10.76 MHz
white/white 10.75 MHz
yellow 10.79 MHz
HOWTO CHANGETHE CERAMIC FILTERS
This model is used two ceramic filters of CF2, CF3 and CF4.
You must use same type of color marked ceramic filters in order to
meet same specifications.
Therefore, the ceramic filter must change two pieces together since
it’s supply two pieces in one package as a spare parts.
mark mark
• white/white only
CF2
CF3
CF4
markmark
CF3
CF2
CF4
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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

–3 –
SECTION 1
GENERAL This section is extracted
from instruction manual.
A
B
C
OPERATION
($ON/4STANDBY)
Insert the #side of the battery first.
Insérez le côté#de la pile en premier.
Batterie mit der #Seite zuerst einlegen.
Inserte en primer lugar el lado #de las pilas
Inserire prima il lato #della pila.
R6 (size AA) battery x 4
pile R6 (format AA) x 4
Mignonzelle (R6/AA) x 4
pila R6 (tomaño AA) x 4
pila R6 (formato AA) x 4
ICF-703
ICF-703S
ICF-703L
Choosing Power
Sources
Batteries (See Fig. A)
1 Open the lid of the battery case.
Slide fully in the direction of the arrow (B) on
the lid and lift it. Do not force to open it.
Doing so may damage the unit.
2 Insert four R6 (sizeAA) batteries (not
supplied) with correct polarity.
3Close the lid.
Battery life
Using Sony LR6(size AA) alkaline batteries:
Approx. 100 hours
Using Sony R6 (size AA) batteries:
Approx. 35 hours
Replacing batteries
When the sound becomes weak or distorted,
replace all the batteries with new ones.
Notes on batteries
•Insert the batteries with correct polarity.
•Do not charge the dry batteries.
•Do not use different types of batteries at the
same time.
•When you replace the batteries, replace all with
new ones.
•When the unit is not being used for a long
period of time, remove the batteries to avoid
damage from battery leakage and corrosion.
•If a battery leakage occurs, wipe the battery
compartment with a soft cloth before inserting
new ones.
HouseCurrent (SeeFig. B)
1Connect the AC power cord supplied to
the AC IN jack of the radio.
2Plug into a wall outlet.
Operating the Radio
1Press OPERATION ($) to turn on the
radio.
2Select a desired band, and tune in a
station using TUNING.
TUNE (tuning) indicator lights up
when a station is tuned in.
3Adjust the volume using VOL.
4Adjust the tone to your preference
using TONE.
To obtain clear treble, turn to “HIGH”.
To reinforce bass, set to “LOW”.
•To turn off the radio, press OPERATION (4).
•To listen with an earphone connect the
earphone to the v(earphone) jack.
The spearker is deactivated when an earphone
is connected.
•To improve Receiving condition(See Fig.C)
FM: Extend the telescopic antenna and adjust
the length and angle for the best reception.
SW: Extend the telescopic antenna vertically.
AM(MW)/LW : Since the reception is affected
by the direction of the radio, rotate the unit
horizontally for optimum reception.
Telescopic antenna
Antenne télescopique
Teleskopantenne
Antena telescópica
Antenna telescopica
TUNE indicator
Indicateur TUNE
TUNE-Anzeige
Indicador de sintonia (TUNE)
Indicatore TUNE
AC power cord (supplied)
Cordon d’alimentation secteur
Netzkabel (mitgeliefert)
Cable de alimentación de CA (suministrado)
Cavo di alimentazione CA in dotazione
Carrying handle
Poignéde transport
Tragegriff
Asa de transporte
Maniglia di trasporto
vjack
Prisev
v-Buchse
Toma v
Presav
AM (MW)/LW
AM (PO)/GO
FM
UKW SW
OC
KW
AC IN
1
2
3
4

–4 –
Note : Follow the disassembly procedure in the numerical order given.
2-2. POWER BOARD
SECTION 2
DISASSEMBLY
lid, battery case
3BTP 3x16
2BTP 3x16
4BTP 3x16
5cabinet (rear)
1
6
1BTP 3x10
5button (power)
4Removal the solders.
CN401
BLK BLK
BRN
6POWER board
3CN401
2
Set Cabinet (Rear) Power Board Main Board, Led Board Setting the Pointer
Note : This set can be disassemble according to the following sequence.
2-1. CABINET (REAR)

–5 –
2-3. MAIN BOARD, LED BOARD
2-4. SETTINGTHE POINTER
1knob (control)
7BTP 3x10
8BTP 3x10
9claws
qa MAIN board
5BTP 2.6x5
6LED board
2knob (band)
3chassis
0
4Removal the solder.
1rack (pointer)
rack (pointer)
2pointer
•Setting the Pointer
A
1. Turn the Knob (Tuning) in the direction of Auntil it is stopped.
2. Place the rack as shown in the figure.
3. Mount the pointer.

–6 –
Put the lead-wir
e
antenna close to
the set.
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L7 5.8 MHz
CT6 18.5 MHz
SWTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L6 5.8 MHz
CT5 18.5 MHz
SECTION 3
ELECTRICAL ADJUSTMENTS
SW SECTION
BAND switch : SW
telescopic
antenna terminal
12pF
AM RF signal
generator
400Hz, 30%
AM modulation
Output level: as low as possible
set
16 Ω
set
vjack (EPJ1)
level mete
r
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
MW IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
455 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L5 520 kHz
CT1-4 1,650 kHz
MWTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1 600 kHz
CT1-1 1,400 kHz
MW SECTION
BAND switch : MW
16 Ω
set
vjack (EPJ1)
level mete
r

telescopic
antenna terminal
0.01µF
FM RF signal
generator
22.5kHz frequency deviation
by 400Hz signal
Output level: as low as possible
set
16 Ω
set
vjack (EPJ1)
level mete
r
– 7 – – 8 –
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
L4 86.5 MHz
CT1-3 109.5 MHz
FMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L8, L9 86.5 MHz
CT1-2 109.5 MHz
Adjustment Location: MAIN BOARD
FM SECTION
BAND switch : FM
CT5
SW
TRACKING
ADJUSTMENT
L6
SW
TRACKING
ADJUSTMENT
CT1-4
MW
FREQUENCY
COVERAGE
ADJUSTMENT
L4
FM
FREQUENCY
COVERAGE
ADJUSTMENT
CT1-1
MW
TRACKING
ADJUSTMENT
L8,9
FM
TRACKING
ADJUSTMENT T1
MW
IF
ADJUSTMENT
CT1-2
FM
TRACKING
ADJUSTMENT
CT1-3
FM
FREQUENCY
COVERAGE
ADJUSTMENT
L5
MW
FREQUENCY
COVERAGE
ADJUSTMENT
–MAIN BOARD (COMPONENT SIDE) –
L7
SW
FREQUENCY
COVERAGE
ADJUSTMENT
CT6
SW
FREQUENCY
COVERAGE
ADJUSTMENT
L1
MW
TRACKING
ADJUSTMENT

1
A
B
C
D
E
F
G
H
I
J
234567891011121314
IC1
D401
D402
JC7
Q5
C403
C404
C401
R401
R402
R302
D301
R301
JC9 C18
C19
JC8
C12
C20
C9
C3
C4
R12
C16 C17
C25 C24
R13
C23
C8
R10
R1
L12
C26
C38
L11
C37
L10
JC4
JC402
JC3
JC6
JC5
EC
B
Q2
B
CE
Q1
B
CE
Q3
B
C
E
Q4
B
C
E
D1
TP5
TP3
CF3
CF2
TP1
BPF1 CF4
C10
TP2
TP13 C7
TP9
TP11
TP10
TP8
TP7
TP6
TP12
C14 C21
C22
C15
C13
CF1
TP404
TP406 TP405
TP402
TP403
TP311
TP310
04
MAIN BOARDPOWER BOARD
LED BOARD
L5
MW OSC
L4
FM OSC
T1
IFT
RV2
TONE
RV1
VOL
S1
(BAND)
SW/K MW/M FM/U
T401
POWER
TRANSFOMER
C406 TP401
S401
CN401
1-677-384-
1-677-383-
1-677-382-
(11)
11
(11)
11
(11)
11
1
5
CT6
C6
C41
L7
SW OSC
L6
SW ANT
CT5
CV1
TUNING
ANT1
FM/SW
TELESCOPIC
ANTENNA
C40
C5
115
13
16 30
BLK/WHT
BLK
L8
L9
CT1-2 CT1-3
CT1-4 CT1-1
-2 -3
-4 -1
ACJ1
~ AC IN
EPJ1
v
S401
OPERATION
ON
STANDBY
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
3PCS, 4.5V
C402
SP1
SPEAKER
BLK
BLK
BLK/WHT
BRN
D301
TUNE
BLK
BLK/WHT
BLK
RED
CLEAR
L1
MW
FERRITE-ROD
ANTENNA
-3 -2-5
-6 -1-4
CLEAR
RED
BLK
L401
ICF-703S
– 9 – – 10 –
4-1. PRINTEDWIRING BOARDS
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•W: indicates side identified with part number.
•f: internal component.
•b: Pattern from the side which enables seeing.
SECTION 4
DIAGRAMS
D1 F-9
D301 H-3
D401 D-4
D402 D-4
IC1 C-11
Q1 B-11
Q2 B-10
Q3 B-10
Q4 B-10
Q5 B-10
• Semiconductor
Location
Ref.No. Location

4-2. SCHEMATIC DIAGRAMS
– 11 – – 12 –
ICF-703S
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•C: panel designation.
•U: B+ Line.
•H: adjustment for repair.
• Total current is measured with power on.
• Powervoltageisdc4.5Vandfed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : MW
< > : SW
• Voltages are takenwith aVOM(Input impedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.

SECTION 5
EXPLODED VIEW
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories and packing materials are given in
the last of this parts list.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
– 13 – – 14 –
1 X-3379-334-1 CABINET (FRONT) SUB ASSY (BLACK)
1 X-3379-337-1 CABINET (FRONT) SUB ASSY (WHITE)
1 X-3381-198-1 CABINET (FRONT) SUB ASSY (DARK BLACK)
2 3-043-337-01 KNOB (CONTROL) (BLACK,DARK BLACK)
2 3-043-337-11 KNOB (CONTROL) (WHITE)
3 3-043-343-01 KNOB (BAND) (BLACK,DARK BLACK)
3 3-043-343-11 KNOB (BAND) (WHITE)
4 3-043-347-01 POINTER
5 3-043-348-01 RACK (POINTER)
6 3-043-330-01 CHASSIS
*7 1-677-384-11 LED BOARD
*8 1-677-383-11 POWER BOARD
9 3-043-339-01 BUTTON (POWER) (BLACK,DARK BLACK)
9 3-043-339-11 BUTTON (POWER) (WHITE)
10 3-043-344-21 BAND, GEAR
11 3-043-349-01 GEAR (A), MIDWAY
12 3-043-721-01 SPRING (BAND)
13 3-048-207-01 RING (BAND)
14 3-043-350-01 GEAR (B), MIDWAY
15 3-043-345-01 SLIDER (BAND)
16 7-685-532-14 SCREW +BTP 2.6X5 TYPE2 N-S
17 7-685-547-19 SCREW +BTP 3X10 TYPE2 N-S
18 7-685-550-14 SCREW +BTP 3X16 TYPE2 N-S
*19 A-3683-172-A MAIN BOARD, COMPLETE
20 3-043-346-01 HOLDER, FERRITE-ROD ANTENNA
21 3-043-342-01 DRUM(A), VC
22 3-364-941-11 SCREW (+B) (2.6X5), NYLOCK
23 3-043-338-01 KNOB (TUNING) (BLACK,DARK BLACK)
23 3-043-338-11 KNOB (TUNING) (WHITE)
24 3-045-680-01 SPRING (TUNING)
25 3-043-336-01 SHAFT (TUNING)
26 7-671-112-11 BALL, STEEL
27 7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
28 3-049-870-01 WOVEN (VOL), FABRIC NON
29 3-831-441-99 CUSHION
*30 3-363-397-01 DRUM (B)
31 3-363-366-11 SPRING, DRUM
SP1 1-529-676-11 SPEAKER (10.2cm)
0T401 1-435-513-11 TRANSFORMER, POWER
RR
5-1. CABINET (FRONT) SECTION
51 3-045-684-01 CABINET (REAR) (BLACK)
51 3-045-684-11 CABINET (REAR) (WHITE)
51 3-045-684-21 CABINET (REAR) (DARK BLACK)
52 3-049-207-01 CUSHION (BATTERY) (B)
53 3-049-448-01 CUSHION (BATTERY) (D)
54 3-043-717-01 SPRING (HANDLE)
55 7-685-903-31 SCREW +PTPWH 3X10 (TYPE2)
56 3-049-447-01 CUSHION (BATTERY) (C)
57 3-043-335-01 SHAFT (HANDLE)
58 7-685-903-21 SCREW +PTPWH 3X8 (TYPE2)
59 3-049-592-01 SPRING (HANDLE) (B)
60 7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
61 7-623-508-01 LUG, 3
62 3-043-334-01 HANDLE (BLACK)
62 3-043-334-11 HANDLE (WHITE)
63 3-043-334-21 HANDLE (DARK BLACK)
63 3-043-718-01 TERMINAL (+.–), BATTERY
64 3-049-208-01 CUSHION (HANDLE)
65 3-043-331-01 LID, BATTERY CASE (BLACK)
65 3-043-331-11 LID, BATTERY CASE (WHITE)
65 3-043-331-21 LID, BATTERY CASE (DARK BLACK)
66 9-911-815-02 CUSHION
67 3-043-719-01 TERMINAL (+), BATTERY
68 3-043-720-01 TERMINAL (–), BATTERY
ANT1 1-501-222-71 ANTENNA, TELESCOPIC (FM/SW)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
5-2. CABINET (REAR) SECTION
ANT1
59
60
61
57
58
62
64
63
65
66
67
68
56
54
55
51
52
53
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
SP1 T401
2
1
3
45
67
8
17
17
17
18
18
10
9
11 12
13 14
15
16
19
20
28
27
21 30
22
23
24
25
26
29
31
Ver 1.1

–15 –
SECTION 6
ELECTRICAL PARTS LIST
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
*1-677-384-11 LED BOARD
**********
< DIODE >
D301 8-719-080-08 LED SLP145B-51 (TUNE)
< RESISTOR >
R301 1-216-057-00 METAL CHIP 2.2K 5% 1/10W
R302 1-216-061-00 METAL CHIP 3.3K 5% 1/10W
*************************************************************
*A-3683-172-A MAIN BOARD, COMPLETE
*********************
3-043-346-01 HOLDER, FERRITE-ROD ANTENNA
3-049-870-01 WOVEN (VOL), FABRIC NON
7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
< BPF >
BPF1 1-236-022-11 FILTER, BAND PASS
< CAPACITOR >
C3 1-163-103-00 CERAMIC CHIP 27PF 5% 50V
C4 1-163-103-00 CERAMIC CHIP 27PF 5% 50V
C5 1-102-959-00 CERAMIC 22PF 5% 50V
C6 1-102-951-00 CERAMIC 15PF 5% 50V
C7 1-124-261-00 ELECT 10uF 20% 50V
C8 1-163-021-11 CERAMIC CHIP 0.01uF 10% 50V
C9 1-163-021-11 CERAMIC CHIP 0.01uF 10% 50V
C10 1-124-259-11 ELECT 4.7uF 20% 16V
C12 1-163-021-11 CERAMIC CHIP 0.01uF 10% 50V
C13 1-124-259-11 ELECT 4.7uF 20% 16V
C14 1-124-259-11 ELECT 4.7uF 20% 16V
C15 1-124-261-00 ELECT 10uF 20% 50V
C16 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V
C17 1-164-492-11 CERAMIC CHIP 0.15uF 10% 16V
C18 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V
C19 1-164-343-11 CERAMIC CHIP 0.056uF 10% 25V
C20 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V
C21 1-124-234-00 ELECT 22uF 20% 16V
C22 1-126-925-11 ELECT 470uF 20% 10V
C23 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V
C24 1-109-982-11 CERAMIC CHIP 1uF 10% 10V
C25 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V
C26 1-104-896-11 CERAMIC CHIP 24PF 2% 50V
C37 1-163-096-00 CERAMIC CHIP 13PF 5% 50V
C38 1-163-141-00 CERAMIC CHIP 0.001uF 5% 50V
C40 1-104-732-11 FILM 390PF 5% 100V
C41 1-136-682-11 FILM 0.0039uF 5% 100V
< FILTER >
CF1 1-567-177-00 FILTER, CERAMIC
CF2 1-577-600-81 FILTER, CERAMIC
CF3 1-577-600-81 FILTER, CERAMIC
CF4 1-577-600-81 FILTER, CERAMIC
< VARIABLE CAPACITOR >
CT1-4 1-151-679-11 CAP, VAR
CV1-4 1-151-679-11 CAP, VAR (TUNING)
< TRIMMER >
CT5 1-141-354-21 CAP, TRIMMER 10PF
CT6 1-141-354-21 CAP, TRIMMER 10PF
< DIODE >
D1 8-719-800-76 DIODE 1SS226
< IC >
IC1 8-752-037-02 IC CXA1019S
< JUMPER RESISTOR >
JC3 1-216-296-00 SHORT 0
JC4 1-216-296-00 SHORT 0
JC5 1-216-296-00 SHORT 0
JC6 1-216-296-00 SHORT 0
JC7 1-216-295-00 SHORT 0
JC8 1-216-295-00 SHORT 0
JC9 1-216-295-00 SHORT 0
< COIL >
L1 1-754-132-11 ANTENNA, FERRITE-ROD (MW)
L4 1-406-431-11 COIL (WITH CORE) (OSC)
L5 1-406-092-11 COIL, OSC (MW)
L6 1-402-538-11 COIL, SW (ANT)
L7 1-406-413-11 COIL, SW (OSC)
L8 1-428-291-11 COIL, AIR-CORE
L9 1-428-291-11 COIL, AIR-CORE
L10 1-412-959-11 INDUCTOR 47uH
L11 1-410-997-22 INDUCTOR CHIP 2.2uH
MAIN
LED
NOTE:
•Due to standardization, replacements in
the parts list may be different from the
parts specified in the diagrams or the
components used on the set.
•RESISTORS
All resistors are in ohms.
METAL:Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F:nonflammable
•Abbreviation
AUS : Australian model
•Items marked “*”are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
•SEMICONDUCTORS
In each case, u : µ, for example:
uA.. : µA.. uPA.. : µPA..
uPB.. : µPB.. uPC.. : µPC.. uPD.. : µPD..
•CAPACITORS
uF : µF
•COILS
uH : µH
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.

– 16 –
ICF-703S
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
L12 1-410-981-22 INDUCTOR CHIP 0.1uH
< TRANSISTOR >
Q1 8-729-027-60 TRANSISTOR DTC144TKA-T146
Q2 8-729-027-60 TRANSISTOR DTC144TKA-T146
Q3 8-729-027-60 TRANSISTOR DTC144TKA-T146
Q4 8-729-027-60 TRANSISTOR DTC144TKA-T146
Q5 8-729-027-60 TRANSISTOR DTC144TKA-T146
< RESISTOR >
R1 1-216-073-00 METAL CHIP 10K 5% 1/10W
R10 1-216-049-11 RES-CHIP 1K 5% 1/10W
R12 1-216-049-11 RES-CHIP 1K 5% 1/10W
R13 1-216-049-11 RES-CHIP 1K 5% 1/10W
< VARIABLE RESISTOR >
RV1 1-225-498-11 RES, VAR, CARBON 50K (VOL)
RV2 1-225-499-11 RES, VAR, CARBON 10K (TONE)
< SWITCH >
S1 1-571-170-11 SWITCH, SLIDE (BAND)
< TRANSFORMER >
T1 1-404-902-11 TRANSFORMER, IF
*************************************************************
*1-677-383-11 POWER BOARD
*************
< AC INLET >
0ACJ1 1-526-838-11 INLET, AC 2P (-AC IN)
< CAPACITOR >
C401 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V
C402 1-126-927-11 ELECT 2200uF 20% 10V
C403 1-163-021-11 CERAMIC CHIP 0.01uF 10% 50V
C404 1-163-021-11 CERAMIC CHIP 0.01uF 10% 50V
C406 1-126-925-11 ELECT 470uF 20% 10V
< CONNECTOR >
*CN401 1-568-271-11 SOCKET, CONNECTOR 5P
< DIODE >
D401 8-719-031-85 DIODE 1N4002L
D402 8-719-031-85 DIODE 1N4002L
< JACK >
EPJ1 1-563-836-21 JACK (v)
< JUMPER RESISTOR >
JC402 1-216-296-00 SHORT 0
< COIL >
L401 1-410-294-11 INDUCTOR 38uH
< RESISTOR >
R401 1-216-017-11 RES-CHIP 47 5% 1/10W
R402 1-216-049-11 RES-CHIP 1K 5% 1/10W
< SWITCH >
S401 1-571-042-11 SWITCH, PUSH (1 KEY) (OPERATION)
*************************************************************
MISCELLANEOUS
***************
ANT1 1-501-222-71 ANTENNA, TELESCOPIC (FM/SW)
SP1 1-529-676-11 SPEAKER (10.2cm)
0T401 1-435-513-11 TRANSFORMER, POWER
*************************************************************
ACCESSORIES & PACKING MATERIALS
********************************
01-696-562-11 CORD, POWER (AEP)
01-696-819-11 CORD, POWER (AUS)
3-046-205-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH,
GERMAN,SPANISH,ITALIAN,DUTCH,
SWEDISH,PORTUGUESE,FINNISH,DANISH)
MAIN POWER
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.

– 17 –
MEMO
ICF-703S

– 18 –
ICF-703S
REVISION HISTORY
Clicking the version allows you to jump to the revised page.
Also, clicking the version at the upper on the revised page you to jump to the next revised page.
Ver. Date Description of Revision
1.1 2001. 09 Cabinet Color Addition (DARK BLACK) (SPM-01034)
1.0 2000. 04 New