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ICF-C470/C470L
SERVICE MANUAL
US Model
Canadian Model
E Model
Australian Model
Ver 1.1 1999. 06
With SUPPLEMENT 1
(9-926-981-81)
ICF-C470
AEP Model
ICF-C470/C470L
UK Model
ICF-C470L
Photo: ICF-C470
SPECIFICATIONS
ICF-C470
FM/AM CLOCK RADIO
ICF-C470L
FM/MW/LW 3 BAND CLOCK RADIO
MICROFILM
TABLE OF CONTENTS
1.
GENERAL ................................................................... 3
2.
DISASSEMBLY ......................................................... 4
3.
DIAL POINTER SETTING ..................................... 5
4.
POWER CORD SETTING ..................................... 6
5.
ELECTRICAL ADJUSTMENTS .......................... 7
6.
DIAGRAMS
6-1.
6-2.
6-3.
6-4.
6-5.
Block Diagram ................................................................
Printed Wiring Boards (ICF-C470) ................................
Schematic Diagram (ICF-C470) .....................................
Printed Wiring Boards (ICF-C470L) ..............................
Schematic Diagram (ICF-C470L) ..................................
7.
EXPLODED VIEWS ................................................ 20
8.
ELECTRICAL PARTS LIST ............................... 22
9
11
13
15
17
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
0.15 µF
AC
voltmeter
(0.75 V)
1.5 k Ω
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!!
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of CF2 and CF3.
You must used same type of color marked ceramic filters in order
to meet same specifications.
Therefore, the ceramic filter must changed two pieces together
since it’s supply two pieces in one package as a spare parts.
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON 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.
CF2
mark
CF3
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
Mark
Center frequency
red
10.70 MHz
blue
10.67 MHz
orange
10.73 MHz
black
10.64 MHz
white
10.76 MHz
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.
–2–
SECTION 1
GENERAL
–3–
This section is extracted from
instruction manual.
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
CABINET (LOWER)
1 five screws
(P3 ×14)
3 cabinet (lower)
2 two claws
MAIN BLOCK
1 power transformer
5 buzzer board
6 Break the soldering
of speaker lead.
3 main block
4 two claws
2 three claws
for chassis
2 three claws
for PWB
–4–
SECTION 3
DIAL POINTER SETTING
Note: Follow the assembly procedure in the numerical order given.
5 Install the MAIN board.
D
4 Turn VR1 to the
arrow D direction fully.
– BOTTOM VIEW –
C
3 Turn shaft of CV1 to the
arrow C direction fully.
B
dial pointer
A
2 Turn the knob (VOL) to the
arrow B direction fully.
1 Turn the knob (tuning) to the
arrow A direction fully.
–5–
SECTION 4
POWER CORD SETTING
Set the power cord as illustrated below,
then install the lower cabinet.
FM antenna
power cord
lower cabinet
–6–
SECTION 5
ELECTRICAL ADJUSTMENTS
AM IF ADJUSTMENT
0 dB = 1 µV
Adjust for a maximum reading on level meter
[AM (MW/LW)*]
* AM
: ICF-C470
MW/LW : ICF-C470L
Setting:
Band switch: AM (MW/LW)
AM RF signal
generator
T1
AM (MW *2) FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter
MAIN board
TP (SPK +)
level meter
Put the lead-wire
antenna close to
the set.
L4
520 kHz
CT1-3
1,750 kHz (1,650 kHz *1)
AM (MW *2) TRACKING ADJUSTMENT
8Ω
Adjust for a maximum reading on level meter
+
–
set
30% amplitude
MAIN board TP (SPK –)
modulation by
400 Hz signal
Output level: as low as possible
L1 (L1-1 *2)
600 kHz
CT1-4
1,400 kHz
LW FREQUENCY COVERAGE ADJUSTMENT *2
Adjust for a maximum reading on level meter
[FM]
Setting:
Band switch: FM
FM RF signal
generator
455 kHz
CT6
MAIN board
TP (FM ANT)
0.01 µF
MAIN board
TP (SPK +)
level meter
LW TRACKING ADJUSTMENT *2
Adjust for a maximum reading on level meter
8Ω
+
–
set
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
145 kHz
L1-2
160 kHz
CT5
240 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
MAIN board TP (SPK –)
Adjust for a maximum reading on level meter
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
• Remove FM antenna in FM adjustments.
L2
86.5 MHz
CT1-1
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
CT1-2
Adjustment Location: Main Board (See page 8)
*1) Except US, Canadian models
*2) ICF-C470L
–7–
109.5 MHz
Adjustment Location:
– MAIN BOARD (Component Side) –
L1 (L1-1*)
AM (MW *) Tracking Adjustment
T1
AM IF Adjustment
CT1-2
FM Tracking Adjustment
FM Frequency
Coverage Adjustment
L2
CT1-1
CT1-4
AM (MW *) Tracking Adjustment
AM (MW *) Frequency
Coverage Adjustment
L1-2
CT5
CT1-3
L4
CT6
LW Frequency Coverage Adjustment *
*) ICF-C470L
– MAIN BOARD (Conductor Side) –
TP
(SPK +)
TP
(SPK –)
TP
(FM ANT)
–8–
LW
Tracking Adjustment *
ICF-C470/C470L
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM
CT1-2
FM TRACKING
• SIGNAL PATH
: FM
L3
FM RF
CV1
ANT1
FM LEAD
ANTENNA
FM/AM FRONT-END,
FM/AM IF AMP, DET, AGC, AF AMP
IC1
CT1-2
CV1-2
TUNING
10
: AM (MW/LW)
FM
RF
15
REG OUT
CF1
455kHz
17
6
CT1-3, L4
8
AM (MW) FREQUENCY
COVERAGE
(C470L)
S1
CV1
BAND
TUNING
S1-2
AM
IF IN
SP1
(SPEAKER)
AM IF AMP,
AGC, DET
FM/AM
BAND
SELECT
TUNING METER
16
20
METER
4
5
(C470)
VR1
S1
VOLUME
BAND
CT1-1
CV1-3
CT6
CT6
MUTING
Q1
AM
CV1-1
CV1
LW FREQUENCY
COVERAGE
TUNING
MW
S3
BUZZER VOLUME
LW
HIGH
VREF
CT5
28
FM
FM
CT5, L1-2
AF
POWER AMP
S1-1
MID
LW
TRACKING
BAND SELECT
SWITCH
Q3, 4
ALM-A/B DISP & SEL
CAL DISP & SNOOZE
TIME SET/DIMMER
MANUAL & SLEEP
MODE SELECT
25
21
29
26
28
22
RADIO OUTPUT
TIME SET INPUT
20
23
ALM-A OUTPUT
AM/PM
10´SHR AG & D
10´SHR B & E
10´SHR C & HRE
HR B & G
HR C & D
HR A & F
10´SMIN A & F
10´SMIN B & G
10´SMIN C & D
10´SMINE MINE
MIN B & G
MIN C & D
MIN A & F
COLON
ALM INDICATOR
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
24
ALM-B OUTPUT
LOW
MODE CONTROL, LED DRIVER
IC2
50/60Hz INPUT 27
(C470L)
Q6
SWITCHING
CR OSC 19
C470: US, Canadian, E92/
C470L
S11
CLOCK
B+
S4
LED1
DATE DISPLAY
S5
S10
S7
S6
S6
S8
S11
D1
SWITCH
Q5
C470: AEP, Italian, Singapore/
C470L: AEP
S9
EXCEPT C470: US,
Canadian, E92/C470L
(C470: Australian/C470L: UK)
“L”
“H”
“L”
“H”
“L”
“H”
“H”
“L”
S4
S10
S6
S8
S12
ALARM B
BUZZER
SNOOZE/DATE/
SLEEP OFF
ALARM RESET/OFF
RADIO OFF
FREQUENCY
S5
S7
S9
TIME SET +
ALARM A
RADIO
SLEEP
RADIO ON
–9–
(EXCEPT C470: US, Canadian, E13, E92)
T2
POWER
TRANSFORMER
RECT
D2, 3
“H”
TIME SET –
(C470: US, Canadian, E13, E92)
POWER BACK UP
FOR CLOCK
DRY BATTERY
6F22
(IEC DESIGNATION 6F22)
1PCS. 9V
(C470: US, Canadian, E92)
IC1 B+
60Hz
RIPPLE FILTER
Q2
BRIGHTNESS
(LOW/HIGH)
50Hz
RECT
D4, 6
IC2 B+
05
• Abbreviation
E13: 220 – 230 V AC 50/60Hz
area in E model
E92: 120 V AC area in E model
FM
DISCRIMINATOR
FM FREQUENCY
COVERAGE
L2
FM OSC
CT1-3
CT1-4
L1-2
(LW)
25
24
AF
OUT
CT1-1, L2
L4
AM (MW)
OSC
L1-1
(MW)
CV1-4
+
AF
IN
VOL
9
CV1-4
FM
IF AMP
DET
OUT
AM IF
AM
FRONT-END
FM OSC
VREF
AM RF
IN
FM
IF IN
FM
DISCRI
3
T1
TUNING
CT1-4, L1-1
MW TRACKING
18
CF3
10.7MHz
(C470)
CT1-4
L1
MW/LW
FERRITE-ROD
ANTENNA
CF2
10.7MHz
CV1
11
CT1-4, L1
AM TRACKING
+
AM OSC
L1
AM FERRITE-ROD
ANTENNA
FM
FRONT-END
FM/AM
FE OUT
NF
13
B.P.F.
FM RF
IN
(C470: E13)
– 10 –
DIMMER CONTROL
SWITCH
S2
AC IN
ICF-C470/C470L
6-3.
SCHEMATIC DIAGRAM (ICF-C470)
• See page 19 for IC Block Diagrams.
Note on Schematic Diagram:
• 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 Ω and 1/4 W or less unless otherwise
specified.
¢
•
: internal component.
• 2 : nonflammable resistor.
• C : panel designation
• U : B+ Line.
• H : adjustment for repair.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Signal path.
F : FM
f : AM
• Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220 - 230 V AC 50/60 Hz area in E model
E92 : 120 V AC area in E model
IT
: Italian model
SP
: Singapore model
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
– 13 –
– 14 –
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
ICF-C470/C470L
6-5.
SCHEMATIC DIAGRAM (ICF-C470L)
• See page 19 for IC Block Diagrams.
Note on Schematic Diagram:
• 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 Ω and 1/4 W or less unless otherwise
specified.
¢
•
: internal component.
• 2 : nonflammable resistor.
• C : panel designation
• U : B+ Line.
• H : adjustment for repair.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
) : MW/LW
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Signal path.
F : FM
f : MW/LW
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
– 17 –
– 18 –
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
ICF-C470/C470L
SECTION 7
EXPLODED VIEWS
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
• IC Block Diagrams
– MAIN BOARD –
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
23
22
21
20
19
18 17 16
AF OUT
24
GND
30 29 28 27 26 25
GND
DET OUT
AM IF IN
FM/AM BAND
SELECT
CXA1019S
VCC
RIPPLE
FILTER
AF IN
IC1
AM IF DET AGC
AF POWER AMP
• Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220 - 230 V AC 50/60 Hz area in E model
TUNING
METER
AM FE
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference number in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque ! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
E92 : 120 V AC area in E model
IT
: Italian model
SP : Singapore model
FM IF
(1)
CABINET SECTION
FM
DISCRIMINATOR
5
11 12 13 14
N.C
FE GND
15
FM/AM
IF OUT
10
FM RF IN
AFC
9
AM RF IN
AM OSC
8
FM RF
7
FM OSC
6
REG OUT
5
VOL
GND
4
4
TIME SET
CR OSC
TEST
VSS
ALM IND
T
T
24 23 22
DATE &
SNOOZE
25
RADIO OUT
26
ALM-A OUT
T
T
27
ALM-B OUT
28
ALM-A/B
SELECT
29
MANUAL &
SLEEP
MODE
SELECT
30
50/60Hz
INPUT
TIME SET/
DIMMER
LC85632
VDD
21
20
19
18
17
16
T
T
SP1
6
7
AEP
3
US, CND
8
POWER UP
UK
DISPLAY
CONTROL
INPUT
CONTROL
CAL. DISP
SLP. DISP
AL2. DISP
AL1. DISP
TIME. DISP
SEC. DISP
RESET CONTROL
U/D
RESET
AUS
SET CX
SET CX
U/D
RESET
SET CX
U/D
RESET
SET CX
U/D
RESET
SNOOZE
COUNTER
SLEEP
COUNTER
ALM-A
COUNTER
ALM-B
COUNTER
CALENDER
COUNTER
CONTROL
CONTROL
SET CX
U/D
RESET
RESET
ALM TONE
(1200Hz)
RESET
PRE
COUNTER
TIME
COUNTER
SEC.
COUNTER
E
2
ALM TONE
(2400Hz)
1Hz
1 DAY
1
8
GATE
COMPARATOR
TIME SET
ALM-A STOP
ALM-B STOP
OUTPUT CONTROL
CALENDER
SLEEP
ALM-B
SET
TIME
ALM-A
ALM TONE
OUTPUT DECODER/DRIVER
6
7
8
9
10 11 12 13 14 15
10´SHR B & E
10´SHR C & HRE
HR B & G
HR C & D
HR A & F
10´SMIN A & F
10´SMIN B & G
10´SMIN C & D
COLON
5
MIN A & F
4
MIN C & D
3
MIN B & G
2
10´SMINE MINE
1
10´SHR AG & D
ALARM INDICATOR
AM/PM
IC2
3
NF
2
FM DISCRI
1
GND
FM FE
– 19 –
Ref. No.
1
2
3
Part No.
Description
Remark
3
4
3-369-135-21 LID, BATTERY CASE
3-368-852-01 FOOT
3-030-215-01 BUTTON (MAIN)
(C470: US, CND, E13, E92, SP, AUS)
3-030-215-11 BUTTON (MAIN) (C470:AEP, IT/C470L)
3-032-104-01 SCALE, DIAL (C470: US, CND, E92)
4
4
4
4
4
3-032-104-11
3-032-104-21
3-032-104-31
3-032-104-41
3-032-104-51
5
3-030-213-01 CABINET (UPPER)
(C470: US, CND, E13, E92, SP, AUS)
SCALE, DIAL (C470: AEP, SP)
SCALE, DIAL (C470: E13, AUS)
SCALE, DIAL (C470: IT)
SCALE, DIAL (C470L: AEP)
SCALE, DIAL (C470L: UK)
Ref. No.
5
5
6
6
SP1
!7
!7
!7
!7
!7
– 20 –
8
Part No.
Description
Remark
3-030-213-11 CABINET (UPPER) (C470L)
3-030-213-31 CABINET (UPPER) (C470: AEP, IT)
3-030-216-01 BUTTON (ALARM)
(C470: US, CND, E13, E92, SP, AUS)
3-030-216-11 BUTTON (ALARM) (C470: AEP, IT/C470L)
1-504-748-21 SPEAKER (6.6cm)
1-555-795-00 CORD, POWER
(C470: AEP, IT, E13, SP/C470L: AEP)
1-696-572-21 CORD, POWER (C470L: UK)
1-769-339-22 CORD, POWER (C470: E92)
1-783-817-11 CORD, POWER (C470: US, CND)
1-790-431-11 CORD, POWER (C470: AUS)
7-685-649-79 SCREW +P 3X14 TYPE2 NON-SLIT
(2)
CHASSIS SECTION
ANT1
LED1
W8
60
57
58
A
59
56
L1
55
61
A
C470: AEP, IT, E13, SP/
C470L
T2
66
63
53
64
54
52
67
65
52
51
Les composants identifiés par une
marque ! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
62
Ref. No.
Part No.
Description
51
51
51
51
52
3-030-214-01
3-030-214-11
3-030-214-21
3-030-214-31
3-030-220-01
CABINET (LOWER) (C470: US, CND, E92)
CABINET (LOWER) (C470: AEP, IT, SP, AUS)
CABINET (LOWER) (C470: E13)
CABINET (LOWER) (C470L)
KNOB (BAND)
* 53
* 53
54
55
56
1-671-686-11
1-671-686-21
3-030-218-01
3-032-106-01
3-030-217-01
56
57
57
58
58
3-030-217-11
1-671-684-11
1-671-684-21
1-671-683-11
1-671-683-21
BUZZER BOARD (C470L)
BUZZER BOARD (C470)
CHASSIS
SPRING (ALARM)
KNOB (ALARM)
(C470: US, CND, E13, E92, SP, AUS)
KNOB (ALARM) (C470: AEP, IT/C470L)
KEY (B) BOARD (C470L)
KEY (B) BOARD (C470)
KEY (A) BOARD (C470L)
KEY (A) BOARD (C470)
*
*
*
*
* 59
* 59
* 60
* 60
* 60
*
*
*
*
60
60
60
60
Remark
1-671-685-11 TRANSFORMER BOARD (C470L)
1-671-685-21 TRANSFORMER BOARD (C470)
A-3683-025-A MAIN BOARD, COMPLETE
(C470: US, CND, E92)
A-3683-057-A MAIN BOARD, COMPLETE (C470: AEP, SP)
A-3683-059-A MAIN BOARD, COMPLETE (C470: IT)
A-3683-060-A
A-3683-061-A
A-3683-063-A
A-3683-065-A
The components identified by mark
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
MAIN BOARD, COMPLETE (C470: E13)
MAIN BOARD, COMPLETE (C470: AUS)
MAIN BOARD, COMPLETE (C470L: AEP)
MAIN BOARD, COMPLETE (C470L: UK)
Ref. No.
Part No.
Description
* 61
62
63
64
65
3-034-959-01
3-846-067-01
3-030-219-01
3-030-221-01
3-919-268-01
PLATE (LED), SHIELD
SPACER
KNOB (TUNING)
POINTER
KNOB (VOL)
66
67
! T2
! T2
W8
ANT1
L1
L1
L1
LED1
Remark
1-535-771-11 TERMINAL
(C470: AEP, IT, E13, SP, AUS/C470L)
3-034-961-01 SHEET, BLIND
1-433-573-11 TRANSFORMER, POWER
(C470: US, CND, E92)
1-433-574-11 TRANSFORMER, POWER
(C470: AEP, IT, E13, SP, AUS/C470L)
1-535-804-11 SNAP, BATTERY
1-501-907-21 ANTENNA, FM WIRE
1-501-976-11 ANTENNA, FERRITE-ROD (MW/LW) (C470L)
1-402-413-21 ANTENNA, FERRITE-ROD (AM)
(C470: US, CND, E92)
1-402-472-31 ANTENNA, FERRITE-ROD (AM)
(C470: AEP, IT, E13, SP, AUS)
8-749-015-49 LED SL-1906-54T (DATE DISPLAY)
(C470: US, CND, E92)
LED1
8-749-015-50 LED SL-3906-54T (DATE DISPLAY)
LED1
(C470: E13)
8-749-015-51 LED SL-3906-55T (DATE DISPLAY)
(C470: AEP, IT, SP, AUS/C470L)
– 21 –
BUZZER
KEY (A)
KEY (B)
MAIN
SECTION 8
ELECTRICAL PARTS LIST
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.
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
• Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220 - 230 V AC 50/60 Hz area in E model
Ref. No.
Part No.
*
*
1-671-686-11 BUZZER BOARD (C470L)
1-671-686-21 BUZZER BOARD (C470)
*************
• 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
E92 : 120 V AC area in E model
IT
: Italian model
SP : Singapore model
Description
Remark
Ref. No.
When indicating parts by reference
number, please include the board.
Description
Remark
A-3683-025-A MAIN BOARD, COMPLETE
(C470: US, CND, E92)
A-3683-057-A MAIN BOARD, COMPLETE (C470: AEP, SP)
A-3683-059-A MAIN BOARD, COMPLETE (C470: IT)
A-3683-060-A MAIN BOARD, COMPLETE (C470: E13)
A-3683-061-A MAIN BOARD, COMPLETE (C470: AUS)
*
1-163-038-00 CERAMIC CHIP
Les composants identifiés par une
marque ! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
S9
1-762-233-11 SWITCH, KEYBOARD (SLEEP, RADIO ON)
************************************************************
< CAPACITOR>
C18
Part No.
The components identified by mark
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
0.1uF
25V
(C470)
*
*
*
*
< RESISTOR >
JC18
R17
R29
1-216-295-00 SHORT
0
1-216-061-00 METAL CHIP
1-216-085-00 METAL CHIP
3.3K
33K
5%
5%
*
*
A-3683-063-A MAIN BOARD, COMPLETE (C470L: AEP)
A-3683-065-A MAIN BOARD, COMPLETE (C470L: UK)
*********************
*
3-034-959-01 PLATE (LED), SHIELD
1/10W
1/10W
< SWITCH >
< ANTENNA >
S2
1-762-231-11 SWITCH, SLIDE (BRIGHTNESS)
S3
1-572-949-11 SWITCH, SLIDE (BUZZER VOLUME)
************************************************************
ANT1
1-501-907-21 ANTENNA, FM WIRE
< CAPACITOR >
1-671-683-11 KEY (A) BOARD (C470L)
1-671-683-21 KEY (A) BOARD (C470)
*************
*
*
C1
C2
C3
1-163-235-11 CERAMIC CHIP
1-163-243-11 CERAMIC CHIP
1-163-101-00 CERAMIC CHIP
22PF
47PF
22PF
C4
1-163-088-00 CERAMIC CHIP
5PF
C4
1-163-091-00 CERAMIC CHIP
C5
C6
C7
1-163-233-11 CERAMIC CHIP
1-163-009-11 CERAMIC CHIP
1-163-021-11 CERAMIC CHIP
50V
(C470: US, CND, E92)
8PF
50V
(C470: AEP, IT, E13, SP, AUS)
18PF
5%
50V
0.001uF 10%
50V
0.01uF
10%
50V
C8
1-163-089-00 CERAMIC CHIP
6PF
C8
1-163-095-00 CERAMIC CHIP
12PF
5%
C10
C11
C12
1-128-551-11 ELECT
1-163-021-11 CERAMIC CHIP
1-126-960-11 ELECT
22uF
0.01uF
1uF
20%
10%
20%
C13
C14
C15
C16
C17
1-163-021-11
1-126-963-11
1-126-964-11
1-163-989-11
1-164-004-11
0.01uF
4.7uF
10uF
0.033uF
0.1uF
10%
20%
20%
10%
10%
< RESISTOR >
C3
JC7
JC8
R15
1-216-296-00 SHORT
1-216-295-00 SHORT
0 (C470: US, CND, E13, E92)
0
(C470: AEP, IT, SP, AUS/C470L)
1-216-073-00 METAL CHIP
10K
5%
1/10W
C4
5%
50V
5%
50V
5%
50V
(C470: IT/C470L)
1-163-103-00 CERAMIC CHIP 27PF
5%
50V
(C470: US, CND, AEP, E13, E92, SP, AUS)
1-163-086-00 CERAMIC CHIP 3PF
50V
(C470L)
< SWITCH >
S4
S5
S6
S7
S10
1-762-233-11 SWITCH, KEYBOARD (–, TIME SET)
1-762-233-11 SWITCH, KEYBOARD (+, TIME SET)
1-762-233-11 SWITCH, KEYBOARD
(SNOOZE/DATE/SLEEP OFF)
1-762-233-11 SWITCH, KEYBOARD (A RADIO, ALARM)
1-762-233-11 SWITCH, KEYBOARD (B BUZZER, ALARM)
S11
1-762-233-11 SWITCH, KEYBOARD (CLOCK)
************************************************************
1-671-684-11 KEY (B) BOARD (C470L)
1-671-684-21 KEY (B) BOARD (C470)
*************
*
*
< SWITCH >
S8
1-762-233-11 SWITCH, KEYBOARD
(ALARM RESET/OFF, RADIO OFF)
– 22 –
CERAMIC CHIP
ELECT
ELECT
CERAMIC CHIP
CERAMIC CHIP
50V
(C470L)
50V
(C470: IT)
25V
50V
50V
50V
50V
50V
25V
25V
MAIN
Ref. No.
Part No.
Description
Remark
C19
1-126-963-11 ELECT
4.7uF
20%
C20
C21
C22
1-128-551-11 ELECT
1-126-925-11 ELECT
1-109-982-11 CERAMIC CHIP
22uF
470uF
1uF
20%
20%
10%
C22
1-164-505-11 CERAMIC CHIP
2.2uF
C23
C24
1-164-505-11 CERAMIC CHIP
1-104-665-11 ELECT
2.2uF
100uF
20%
C24
1-126-382-11 ELECT
100uF
20%
C25
1-163-085-00 CERAMIC CHIP
2PF
C25
1-163-235-11 CERAMIC CHIP
22PF
50V
(C470L)
25V
10V
10V
(C470L)
16V
(C470)
Ref. No.
Part No.
Description
Remark
< TRIMMER >
CT1
CT1
CT5
CT6
1-141-529-11 CAP, VARIABLE
(C470: AEP, IT, E13, SP, AUS/C470L)
1-151-628-11 CAP, VARIABLE (C470: US, CND, E92)
1-141-604-11 CAP, ADJ (C470L)
1-141-604-11 CAP, ADJ (C470L)
< VARIABLE CAPACITOR >
0.001uF
5%
16V
10V
(C470)
6.3V
(C470L)
50V
(C470)
50V
(C470L)
C26
1-163-009-11 CERAMIC CHIP
10%
C27
1-163-121-00 CERAMIC CHIP
C28
1-164-004-11 CERAMIC CHIP
C29
C30
1-164-004-11 CERAMIC CHIP
1-163-021-11 CERAMIC CHIP
50V
(C470L)
150PF
5%
50V
(C470L)
0.1uF
10%
25V
(C470: US, CND, E92)
0.1uF
10%
25V
0.01uF
10%
50V
C31
C32
C33
C34
C35
1-163-021-11
1-126-925-11
1-104-665-11
1-126-934-11
1-163-009-11
0.01uF
470uF
100uF
220uF
0.001uF
C36
C37
C38
1-164-182-11 CERAMIC CHIP
1-163-038-00 CERAMIC CHIP
1-163-038-00 CERAMIC CHIP
0.0033uF 10%
0.1uF
0.1uF
C39
1-163-038-00 CERAMIC CHIP
0.1uF
C40
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
25V
25V
(C470L)
25V
(C470L)
50V
C41
C42
C43
C44
C45
1-128-551-11
1-163-021-11
1-163-021-11
1-163-009-11
1-163-021-11
22uF
0.01uF
0.01uF
0.001uF
0.01uF
20%
10%
10%
10%
10%
25V
50V
50V
50V
50V
C48
1-163-021-11 CERAMIC CHIP
0.01uF
10%
CV1
CV1
1-141-529-11 CAP, VARIABLE (TUNING)
(C470: AEP, IT, E13, SP, AUS/C470L)
1-151-628-11 CAP, VARIABLE (TUNING)
(C470: US, CND, E92)
< DIODE >
D1
D2
D3
D4
D5
8-719-074-44
8-719-074-44
8-719-052-88
8-719-074-44
8-719-976-99
DIODE
DIODE
DIODE
DIODE
DIODE
1SS120RX
1SS120RX
1N4002
1SS120RX
DTZ5.1B
D6
D8
D9
8-719-074-44 DIODE 1SS120RX
8-719-074-44 DIODE 1SS120RX
8-719-074-44 DIODE 1SS120RX
< IC >
C49
C66
C67
CERAMIC CHIP
ELECT
ELECT
ELECT
CERAMIC CHIP
ELECT
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
CERAMIC CHIP
50V
10V
25V
10V
50V
IC1
IC2
1-577-072-11
1-578-677-11
1-577-324-11
1-577-324-11
FILTER, CERAMIC (C470)
FILTER, CRYSTAL (C470L)
FILTER, CERAMIC
FILTER, CERAMIC
8-752-037-02 IC CXA1019S
8-759-193-05 IC LC85632
< SHORT >
50V
(C470: E13)
1-164-004-11 CERAMIC CHIP 0.1uF
10%
25V
(C470: US, CND, E13, E92, AUS)
1-163-125-00 CERAMIC CHIP 220PF
5%
50V
(C470: US, CND, E92)
1-163-189-00 CERAMIC CHIP 220PF
5%
50V
(C470: US, CND, E92)
< FILTER >
CF1
CF1
CF2
CF3
10%
20%
20%
20%
10%
JC1
JC2
JC3
JC4
JC5
1-216-296-00
1-216-296-00
1-216-296-00
1-216-296-00
1-216-295-00
SHORT
SHORT
SHORT
SHORT
SHORT
0
0
0
0
0
(C470: AEP, IT, SP/C470L: AEP)
JC6
JC9
JC10
JC11
JC12
1-216-295-00
1-216-296-00
1-216-296-00
1-216-296-00
1-216-296-00
SHORT
SHORT
SHORT
SHORT
SHORT
0 (C470: AUS/C470L: UK)
0
0
0
0
JC13
JC14
JC15
JC16
JC19
1-216-295-00
1-216-295-00
1-216-295-00
1-216-296-00
1-216-295-00
SHORT
SHORT
SHORT
SHORT
SHORT
0 (C470)
0 (C470)
0 (C470: AEP, IT, E13, SP, AUS)
0 (C470: E13)
0 (C470)
JC20
JC21
JC22
JC23
JC24
1-216-296-00
1-216-296-00
1-216-295-00
1-216-296-00
1-216-295-00
SHORT
SHORT
SHORT
SHORT
SHORT
0 (C470L)
0 (C470L)
0 (C470L)
0 (C470L)
0 (C470L)
JC25
JC26
JC27
JC28
JC36
1-216-295-00
1-216-295-00
1-216-296-00
1-216-295-00
1-216-296-00
SHORT
SHORT
SHORT
SHORT
SHORT
0 (C470L)
0 (C470L)
0 (C470L)
0 (C470L)
0 (C470L)
JC37
JC38
JC39
1-216-295-00 SHORT
1-216-296-00 SHORT
1-216-295-00 SHORT
< CONNECTOR >
* CN1
* CN2
1-568-270-11 SOCKET, CONNECTOR 4P
1-568-273-11 SOCKET, CONNECTOR 7P
– 23 –
0 (C470L)
0 (C470L)
0 (C470: IT)
MAIN
Ref. No.
JC43
TRANSFORMER
Part No.
Description
1-216-296-00 SHORT
Remark
Ref. No.
0 (C470: E13)
Part No.
Description
R19
1-216-097-00 RES, CHIP
R21
! R22
1-216-198-00 RES, CHIP
1-249-399-11 CARBON
Remark
100K
5%
1/10W
(C470L)
< LED >
LED1
8-749-015-49 LED
LED1
8-749-015-50 LED
LED1
8-749-015-51 LED
SL-1906-54T (DATE DISPLAY)
(C470: US, CND, E92)
SL-3906-54T (DATE DISPLAY)
(C470: E13)
SL-3906-55T (DATE DISPLAY)
(C470: AEP, IT, SP, AUS/C470L)
! R22
! R23
! R23
< COIL >
L1
L2
1-402-413-21 ANTENNA, FERRITE-ROD (AM)
(C470: US, CND, E92)
1-402-472-31 ANTENNA, FERRITE-ROD (AM)
(C470: AEP, IT, E13, SP, AUS)
1-501-976-11 ANTENNA, FERRITE-ROD (MW/LW) (C470L)
1-428-229-11 COIL, AIR-CORE (C470: US, CND, AEP, E13,
E92, SP, AUS/C470L)
1-406-425-11 COIL (C470: IT)
L4
L6
L7
1-406-028-00 COIL, OSC (MW)
1-410-513-11 INDUCTOR
22uH
1-410-513-11 INDUCTOR
22uH
L1
L1
L2
R24
R25
R26
R28
1K
5%
1/8W
33
5%
1/4W F
(C470: AEP, IT, E13, SP, AUS/C470L)
1-249-403-11 CARBON
68
5%
1/4W F
(C470: US, CND, E92)
1-249-399-11 CARBON
33
5%
1/4W F
(C470: AEP, IT, E13, SP, AUS/C470L)
1-249-403-11 CARBON
68
5%
1/4W F
(C470: US, CND, E92)
1-216-073-00
1-216-073-00
1-216-262-00
1-216-097-00
METAL CHIP
METAL CHIP
RES, CHIP
RES, CHIP
10K
10K
470K
100K
5%
5%
5%
5%
1/10W
1/10W
1/8W
1/10W
(C470L)
< SWITCH >
S1
S1
S12
1-572-949-11 SWITCH, SLIDE (BAND) (C470L)
1-762-231-11 SWITCH, SLIDE (BAND) (C470)
1-762-231-11 SWITCH, SLIDE (FREQUENCY) (C470: E13)
< TRANSFORMER >
< TRANSISTOR >
Q1
Q2
Q3
Q4
Q5
8-729-119-76
8-729-011-92
8-729-119-78
8-729-029-96
8-729-119-76
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
Q6
8-729-119-78 TRANSISTOR 2SC403SP-51 (C470L)
T1
T1
2SA1175-HFE
2SC2001TP-K1K2
2SC403SP-51 (C470L)
DTC143XSA (C470L)
2SA1175-HFE
(C470: US, CND, E92/C470L)
1-404-790-11 TRANSFORMER, IF (C470)
1-404-902-21 TRANSFORMER, IF (C470L)
< VARIABLE RESISTOR >
VR1
1-228-790-00 RES, VAR, CARBON 50K (VOLUME)
< CONNECTION CORD >
W6
1-790-663-11 CORD, CONNECTION
< RESISTOR >
< BATTERY SNAP >
R1
R2
R3
R4
1-216-049-11
1-216-021-00
1-216-073-00
1-216-073-00
R4
RES, CHIP
METAL CHIP
METAL CHIP
METAL CHIP
1K
68
10K
10K
5%
5%
5%
5%
1/10W
1/10W
1/10W
1/10W
(C470L)
1-216-097-00 RES, CHIP
100K
5%
R5
R6
R7
1-216-057-00 METAL CHIP
1-216-057-00 METAL CHIP
1-216-097-00 RES, CHIP
2.2K
2.2K
100K
5%
5%
5%
R8
1-216-073-00 METAL CHIP
10K
5%
1/10W
(C470)
1/10W
1/10W
1/10W
(C470L)
1/10W
(C470L)
W8
1-535-804-11 SNAP, BATTERY
************************************************************
*
1-671-685-11 TRANSFORMER BOARD (C470L)
*
1-671-685-21 TRANSFORMER BOARD (C470)
*******************
*
1-535-771-11 TERMINAL
(C470: AEP, IT, E13, SP, AUS/C470L)
< TRANSFORMER >
! T2
1-433-573-11 TRANSFORMER, POWER
(C470: US, CND, E92)
1-433-574-11 TRANSFORMER, POWER
(C470: AEP, IT, E13, SP, AUS/C470L)
************************************************************
! T2
R9
1-216-198-00 RES, CHIP
1K
5%
R10
1-216-081-00 METAL CHIP
22K
5%
R11
R12
1-216-041-00 METAL CHIP
1-216-096-00 RES, CHIP
470
91K
5%
5%
R13
1-216-057-00 METAL CHIP
2.2K
5%
R13
1-216-206-00 RES, CHIP
2.2K
5%
R14
R18
1-216-073-00 METAL CHIP
1-216-073-00 METAL CHIP
10K
10K
5%
5%
1/8W
(C470L)
1/10W
(C470L)
1/10W
1/10W
1/10W
(C470)
1/8W
(C470L)
1/10W
1/10W
(C470L)
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
– 24 –
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MISCELLANEOUS
**************
!7
!7
!7
!7
!7
1-555-795-00 CORD, POWER
(C470: AEP, IT, E13, SP/C470L: AEP)
1-696-572-21 CORD, POWER (C470L: UK)
1-769-339-22 CORD, POWER (C470: E92)
1-783-817-11 CORD, POWER (C470: US, CND)
1-790-431-11 CORD, POWER (C470: AUS)
ANT1
1-501-907-21 ANTENNA, FM WIRE
SP1
1-504-748-21 SPEAKER (6.6cm)
W8
1-535-804-11 SNAP, BATTERY
************************************************************
ACCESSORIES & PACKING MATERIALS
********************************
3-865-470-11 MANUAL, INSTRUCTION
(ENGLISH, FRENCH, GERMAN, SWEDISH)
(C470: CND, AEP, AUS/C470L)
3-865-470-21 MANUAL, INSTRUCTION (ENGLISH)
(C470: US)
3-865-470-31 MANUAL, INSTRUCTION
(ENGLISH, ITALIAN, SPANISH, PORTUGUESE)
(C470: AEP, IT, E/C470L: AEP)
3-865-470-51 MANUAL, INSTRUCTION
(ENGLISH, FINNISH, DANISH, CHINESE) (C470: AEP, SP)
************************************************************
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
– 25 –
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
ICF-C470/C470L
Sony Corporation
9-926-981-11
Personal A&V Products Company
– 26 –
99C0582-1
Printed in Japan © 1999. 3
Published by Quality Engineering Dept.
(Shinagawa)
ICF-C470/C470L
US Model
Canadian Model
E Model
Australian Model
SERVICE MANUAL
ICF-C470
1999. 06
AEP Model
ICF-C470/C470L
UK Model
ICF-C470L
SUPPLEMENT-1
File this supplement with the service manual.
Subject: Addition of East Europe, Russia Model (ICF-C470L)
(ENG-99007)
• DIFFERENCE PARTS LIST
ACCESSORIES & PACKING MATERIAL
Page
Before change
Ref. No.
Part No.
Description
After change
Remark
Ref. No.
25
Description
Remark
3-865-470-42 MANUAL, INSTRUCTION (RUSSIAN,
POLISH, CZECH, HUNGARIAN)
(East Europe, Russia)
Sony Corporation
9-926-981-81
Part No.
Personal Audio Company
99F05075-1D
Printed in Japan © 1999. 6
Published by General Engineering Dept.