Sony ICF-C218 (serv.man2) Service Manual ▷ View online
ICF-C218
9
9
ICF-C218
SECTION 4
DIAGRAMS
4-1. PRINTED WIRING BOARD
Note:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
AR
: Argentina model
AUS
: Australian model
C&SA : Central & South American model
MX
MX
: mexican model
SP
: Singapore model
TH
: Thai model
Ref. No. Location
D202
D-3
D203
D-4
D204
C-5
D205
D-7
D301
C-6
D302
C-6
D303
C-5
IC1
B-3
IC101
D-5
LED101
E-5
Q1
C-3
Q302
C-5
• Semiconductor
Location
2
3
4
5
6
7
8
9
A
1
B
C
D
E
JC3
C1
C34
C2
C21
C4
C10
C13
C19
JC2
R10
R7
C25
R243
C201
R209
C301
C302
R242
R223
R224
R226
C212
C208
C203
X1
C204
C202
R219
R202
R201
L201
L202
R240
C205
R213
C308
R228
R244
C20
C22
CF3
C3
C6
L4
C8
C32
R208
R214
R225
R211
R241
R222
R227
R212
R302
R216
1
9
10
18
19
27 28
36
JC202
R204 R239
R205
R220
C307
AUS, SP, AR, TH
C&SA, MX
R217
R218
IC101
C209
C210
18
1
Q1
C29
R221
R1
R2
E
Q302
E
D204
D205
C15
RV1
VOLUME
T1
CF1
CF2
BAND
FM
AM
S1
ALARM TIME
SET +
S11
JW2
TP1 (RF IN)
C7
CV1
C9
C17
SP1
C14
C24
C305
C304
C306
C303
C11
W103
L3
JW3
JW6
JW5
JW205
JW210
JW204
JW208
JW207
JW206
D303
D301
D202
D203
D302
JW302
JW211
JW202
JW303
JW301
CV1-3
CV1-2
CV1-4
CV1-1
CT1-4
CT1-1
CT1-3
CT1-2
ALARM TIME
SET -
S12
SLEEP
S10
OFF
S15
ON
S6
SNOOZE
S16
W105
W102
DST
S14
SET+
S7
SET-
S8
CLOCK
S9
ALARM MODE
BUZZER
RADIO OFF
S4
T301
POWER TRANSFORMER
AC IN
LED101
LED DISPLAY
L1
AM
FERRITE-BAR
ANTENNA
ANT1
FM WIRE
ANTENNA
1
15
30
16
IC1
11
(11)
1-872-291-
MAIN BOARD
LITHIUM BATTERY
CR2032
1PC. 3V
1PC. 3V
(POWER BACK UP FOR CLOCK)
TUNING
CV1-1-CV1-4
:Uses unleaded solder.
Ver. 1.2
ICF-C218
10
10
ICF-C218
MAIN BOARD
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
9
8
7
6
5
4
3
2
27
19
18
17
16
14
13
15
12
11
10
28
29
30
32
33
31
34
35
36
20
21
22
23
24
25
26
L1 AM BAR-ANT
C2
3p
CJ
C3
10p
CH
C4
10p
CH
C6
6p
CH
C8
22p
CH
C21
3p
CJ
JC2
JW5
JW208
C10
0.01
0.01
B
C7
10
50V
BP1
CV1-1
CT1-1
CV1-2
CT1-2
CV1-3
CT1-3
CV1-4
CT1-4
W104
FM WIRE
ANTENNA
ANTENNA
JW2
L3
FM OSC
L4
AM OSC
RV1
50k
C25
0.1
F
C19
1
F
CF3
DISCRI
R10
47k
TP101
W105
COM1
TP102
COM0
R202
15k
R205
220k
R239
220k
R204
330k
R240
47k
R201 15k
R7
47
R243
15k
Q1
2SA1235TP-1EF
MUTE
TP3
TP4
REG
TP2
RF GND
FM/AM
IF OUT
BAND
SELECT
AM
IF IN
FM
IF IN
NC
NC
LED
GND
AF
OUT
VCC
RIPPLE
FIL
TER
AF IN
DET
OUT
AFC
AGC
AFC
AGC
IF GND
FE
GND
FM
RF IN
AM
RF IN
REG
OUT
FM
OSC
AM
OSC
FM
DISCRI
NC
NF
GND
GND
AFC
VOL
FM RF
TP1
RF IN
TP9
TP12
BAND
BAND
T1
AM IFT
CF1
JW6
455kHz
CF2
10.7MHz
TP8
DET
DET
TP7
DCC
DCC
TP10
TP225
GND
C13
0.022
B
C9
4.7
C20
1
F
C29
1
F
C22
1
F
C24
1000
10V
C15
0.1
F
50V
C17
47
10V
C11
10
50V
C1
0.01
B
C307
W103
TP11
TP301
C301
0.01
R302
4.7k
D301
1SS133T-77
D302
IN4002-B5
B
C303
1000
1000
D303
Q302
MTZJ-T-77-5.6B
2SC4154-TP-1EF
+5V REG
10V
C302
0.01
B
TP302
JW303
JW301
JW302
L301
(PATTERN)
L302
(PATTERN)
SP
C14
220
10V
220
10V
C306
47
35V
C308
0.01
B
C304
220
10V
C305
100
C201
AUS, C&SA, MX
SP, AR, TH
SP, AR, TH
AUS, SP, AR, TH
MX, C&SA
JW207
JW204
JC202
TP223
TP103
GND
D204
RB521S-30-TE61
D205
RB520S-30-TE61
TP224
BATT
LITHIUM BATTERY
CR2032
1PC .3V
1PC .3V
(POWER BACK UP FOR CLOCK)
JW211
JW205
JW206
R224
10k
R223
10k
R222
6.8k
R216
6.8k
R217
10k
R227
1.5k
R244
10k
TP233
RES
C205
0.01
R214
JW202
SEG10
VSSLED
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16/17
SEG18/19
SEG0
POWER
BATT_AD
INPUT_A
VDD
XT2
XT1
VSS
BATT_CHK
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG20/21
COMIN1
COMIN0
INPUT2
INPUT1
MUTE
BUZZER
INPUT_B
RESET
TP232
TP231
0
C203
22p
CH
C210
0.01
B
C212
0.01
B
C209
0.01
B
C204
22p
CH
B
C208
0.01
B
C202
1
F
R225
0
X1
32.768KHz
D203
1SS119-25TD
D202
1SS119-25TD
TP227
INP-A
R226
15k
R211
470k
R228
1.5k
R213
47k
R212
47k
R218
10k
R219
22k
R220
33k
R221
68k
JW210
TP104
SCK
INP2
TP105
SIN
INP1
0.22
F
10V
W102
L201
22
L202 22
SP1
T301
POWER TRANS
AC IN
8
Ω
100p
CH
S1
R2
470
R1
2.2k
C34
JC
JC3
JW3
L2
FM RF(P
A
TETERN)
AM
TRACKING
L1, CT1-1
FM
TRACKING
CT1-2
AM IF
T1
FM
FREQUENCY
COVERAGE
L3, CT1-3
AM
FREQUENCY
COVERAGE
L4, CT1-4
TUNING
CV1-1-CV1-4
FM
AM
IC1 CXA1019S
IC101
LCD DRIVE,
DIGITAL ALARM
CLOCK
IC101
LC872B06A
ALARM MODE
S4
VOLUME
OFF
RADIO
BUZZER
R242
0
R241
*2
R208
*1 R208
*1
220k
330k
330k
R209
470k
SNOOZE
S12
ALARM TIME SET -
S11
ALARM TIME SET +
S10
SLEEP
S9
CLOCK
S8
SET -
S7
SET +
S6
RADIO ON
RADIO OFF
S15
S16
DST
S14
LED101
LED DISPLAY
1
IC1
FM/AM FRONT END,
IF DET, POWER AMP
IC B/D
AUS, C&SA, MX
SP, AR, TH
SP, AR, TH
*2 R241
0
100k
5.2
0.7
1.3
1.2
4.8
12.1
5.5
3.2
1.0
1.3
1.3
1.3
1.3
1.3
1.3
0.4
( 0
)
1.4
( 0.2
)
1.4
( 0
)
0
0
5.8
6.3
3.2
1.4
( 0
)
1.2
( 1.4
)
1.3
( 1.2
)
1.3
( 1.1
)
2.5
0.5
1.0
0.8
0.8
1.3
1.0
1.1
4.8
2.3
1.5
3.0
0.5
0.6
1.0
0.3
0.8
0.7
1.1
1.1
1.3
0.6
4.8
4.8
4.6
0
0
3.6
0.5
4-2. SCHEMATIC DIAGRAM
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF) 50V or
less are not indicated except for electrolytics and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise specified.
•
f
: internal component.
•
C
: panel designation.
•
H
: adjustment for repair.
• Voltages are dc with respect to ground under no-signal condi-
tions.
no mark : FM
( ) : AM
no mark : FM
( ) : AM
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production toler-
ances.
ances.
•
Signal path.
F
: FM
f
: AM
• Abbreviation
AR
: Argentina model
AUS
: Australian model
C&SA : Central & South American model
MX
MX
: mexican model
SP
: Singapore model
TH
: Thai model
• See page 11 for IC Block Diagrams. • See page 11 for Waveforms.
Ver. 1.2
11
ICF-218
IC1 CXA1019S
• IC Block Diagram
GND
GND
FM DISCRI
NF
VOL
AM OSC
AFC
FM OSC
REG OUT
FM RF
AM RF IN
N. C
FM RF IN
FE GND
MIX OUT
21
22
23
24
25
26
27
28
29
30
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
AF POWER AMP
AM IF DET AGC
AM FE
FM
DISCRIMINATOR
FM FE
TUNING
METER
FM IF
GND
GND
AF OUT
Vcc
RIPPLE
FILTER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N. C
FM IF IN
AM IF IN
FM/AM
BAND
SELECT
• Waveforms
1
IC101
qs
(XT1)
0.2V/DIV, 10
µ
s
ec/DIV
– MAIN Board –
31.3
µ
S
756 mV
12
ICF-C218
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SECTION 5
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Color indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ••• (RED)
Example :
KNOB, BALANCE (WHITE) ••• (RED)
↑
↑
Parts color Cabinet's color
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
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.
in the exploded views are not supplied.
•
Abbreviation
AR
AR
: Argentina model
AUS
: Australian model
C&SA : Central & South American model
MX
MX
: Mexican model
SP
: Singapore model
TH
: Thai model
The components identified by mark 0 or
dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
1
2-894-294-11 PANEL (FRONT) (SP, AR, TH)
1
2-894-294-31 PANEL (FRONT) (C&SA, MX, AUS)
2
A-1229-332-A CABINET (UPPER) ASSY (BLACK) (including SP1)
2
A-1229-338-A CABINET (UPPER) ASSY (SILVER) (including SP1)
2
A-1229-717-A CABINET (UPPER) ASSY (WHITE) (including SP1)
3
2-894-296-02 KNOB (ALARM) (WHITE)...(WHITE)
3
2-894-296-12 KNOB (ALARM) (BLACK)...(BLACK)
3
2-894-296-22 KNOB (ALARM) (GRAY)...(SILVER)
4
2-894-297-01 KNOB (JOG) (WHITE)...(WHITE)
4
2-894-297-11 KNOB (JOG) (BLACK)...(BLACK)
4
2-894-297-21 KNOB (JOG) (GRAY)...(SILVER)
0 5
1-769-339-91 CORD, POWER (C&SA, MX)
0 5
1-777-921-52 POWER-SUPPLY CORD (SP)
0 5
1-783-941-61 CORD, POWER (AR)
0 5
1-834-697-21 CORD, POWER (TH)
0 5
1-834-968-11 CORD, POWER (AUS)
6
A-1229-333-A MAIN BOARD, COMPLETE (C&SA, MX)
6
A-1229-711-A MAIN BOARD, COMPLETE (SP, AR, TH)
6
A-1229-724-A MAIN BOARD, COMPLETE (AUS)
7
2-666-860-11 KNOB (VOL) (GRAY)...(WHITE, SILVER)
7
2-666-860-21 KNOB (VOL) (BLACK)...(BLACK)
8
2-894-298-01 KNOB (TUNE) (GRAY)...(WHITE, SILVER)
8
2-894-298-11 KNOB (TUNE) (BLACK)...(BLACK)
9
2-894-299-01 POINTER
10
2-319-198-01 CABINET (LOWER) (BLACK) (TH, AUS)
10
2-894-293-21 CABINET (LOWER) (WHITE) (SP)
10
2-894-293-51 CABINET (LOWER) (BLACK) (C&SA)
10
2-894-293-61 CABINET (LOWER) (BLACK) (SP, AR)
10
2-894-293-81 CABINET (LOWER) (SILVER) (MX)
10
2-894-293-91 CABINET (LOWER) (WHITE) (TH, AUS)
11
3-254-140-01 SCREW (B2.6), (+) BV TAPPING
12
2-894-300-01 HOLDER, BATTERY (WHITE)...(WHITE)
12
2-894-300-11 HOLDER, BATTERY (BLACK)...(BLACK)
12
2-894-300-21 HOLDER, BATTERY (GRAY)...(SILVER)
13
3-246-344-11 FOOT, RUBBER
0 T301
1-433-573-31 TRANSFORMER, POWER (C&SA, MX)
0 T301
1-433-574-31 TRANSFORMER, POWER (SP, AR, TH, AUS)
1
2
3
T301
5
4
6
7
9
8
10
12
13
11
11
11
Ver. 1.3
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