Sony ICF-C212 (serv.man2) Service Manual ▷ View online
9
9
ICF-C212
4-1. PRINTED WIRING BOARDS
SECTION 4
DIAGRAMS
D1
B-5
D2
C-4
D3
C-3
D4
C-3
D5
C-4
D6
C-4
D7
A-4
Ref. No.
Location
z
Semiconductor Location
Ref. No.
Location
IC1
C-6
IC2
B-4
Q1
B-6
Note:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Abbreviation
SP
: Singapore
2
3
4
5
6
7
8
A
1
B
C
D
S8
S8
SNOOZE/SLEEP OFF
S1
BAND
AM
FM
RV1
VOL
VOL
[MAIN BOARD]
11
(11)
1-678-310-
Q1
D4
D3
D1
D5
D6
D2
C14
C28
C10
C17
C27
JW12
SP MODEL
JW11
JW1
JW2
JW9
JW8
JW7
JW10
JW4
JW5
JW6
CV1
CV4
CV2
CV3
CT2
CT3
CT1
CT4
R10
L1
AM
FERRITE-ROD
ANTENNA
DRY BATTERY
"S-006P"
(IEC DESIGNATION 6F22)
1PC, 9V
(POWER BACK UP FOR CLOCK)
SP1
SPEAKER
+
–
T2
POWER TRANSFORMER
AC IN
C2
C4
C15
C12
C33
C6
C7
C18
C19
C24
C25
C22
R6
R14
R9
R8
R13
C21
R12
C9
C3
C31
C16
C32
C20
C23
R5
R1
R3
R2
R4
R7
1
1
5
5
10
10
15 16
14
15
20
25
28
IC2
D7
LED
DISPLAY
C26
1
2
3
4
1 2 3 4
JW14
C11
W1
1
5
10
15
20
16
25
30
IC1
CF1
CF2
BPF1
C5
L3
W2
BLK
C8
S6
CLOCK
S5
TIME SET
H
S4
TIME SET
M
S3
ALARM
CV1-4
TUNING
S7
SLEEP
CF3
L4
L2
S2
OFF
RADIO
RADIO
BUZZER
ALARM MODE
ON
S2
RV1
ANT1
FM WIRE
ANTENNA
02
T1
N
t
t
t
t
BCE
ICF-C212
10
10
4-2. SCHEMATIC DIAGRAM
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
Note: The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
Replace only with part number specified.
• Voltages are dc with respect to ground under
no-signal conditions.
no mark : FM
(
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input imped-
ance 10 MΩ).
Voltage variations may be noted due to normal
production tolerances.
Voltage variations may be noted due to normal
production tolerances.
• Signal path.
F
: FM
• Abbreviation
SP
: Singapore
CT1
CV1
CT2
L2
CV2
CT3
L3
CV3
CT4
CV4
L1
L4
R12
R13
JW4
JW5
JW7
C7
C31
C18
R7
R8
C19
C20
C26
C28
JW1
C5
C8
C10
C11
C14
C16
C9
CF1
CF2
C15
JW3
CF3
D5
C25
C24
D1
S3
S6
S8
S7
W1
S4
S5
C23
R9
JW6
JW11
JW12
JW9
D2
JW8
R10
D3
D4
R6
C22
C21
T1
C27
C17
C32
JW2
R14
BPF1
D6
W2
RV1
R5
C2
R1
C3
C4
C6
C12
C33
R3
R4
Q1
R2
10k
10k
0.01
0.1
0.01
22k
220k
6800p
0.01
220
16V
16V
1000
6.3V
47
10V
1
50V
4.7
50V
10
50V
47
10V
0.1
0.01
2.2
1SS119
0.01
0.01
1SS119
0.01
100k
1SS119
22
1SS119
1SS119
2.2k
0.01
0.01
1000
6.3V
100
10V
10V
0.1
33
1N4002
50k
220
18p
2.2k
27p
3p
0.01
0.022
0.1
100k
220k
MSB70979-RT1
ALARM
47
AM
FREQUENCY
COVERAGE
FREQUENCY
COVERAGE
FM
FM
TRACKING
TRACKING
AM
L1,CT1
L2,CT2
L4,CT4
L3,CT3
TUNE
CV1-4
ICF-C212
11
z
IC Block Diagrams
IC1 CXA1019S
IC2 LM8560N
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
OSC
CTR
GATE
GATE
D
OUTPUT
CONTROL
COMPARATOR
STAND
BY DET
BLANK
&
FLASH
OUTPUT
DECODER/
DRIVER
INPUT
CONTROL
PWR
UP
1/2
SEC
CTR
CTR
RESET
CONTROL
1/25 OR 1/30
DISPLAY
CONTROL
TIME
HR CTR
CONTROL
ALARM
HR CTR
D
D
D
D
D
SLEEP
CTR
ALARM
MIN CTR
TIME
MIN CTR
SEC RSTYHLD
TIME
SEC
ALARM
SLEEP
28
27
26 25
24
23
22
21
20
18
14
1 – 13
16 15
17
PWR UP
TONE
PWR
UP
50/60Hz
50/60Hz
50/60Hz
50/60Hz
50/60Hz
50/60Hz
2Hz
50/60Hz
T.DISP &
S.SAMPLE
T.RST
AL.RST
SEC DISP
T.DISP
AL.DISP
SL.DISP
TIME &
S.SAMPLE
TIME &
F.SAMPLE
ALARM &
F.SAMPLE
ALARM &
S.SAMPLE
2Hz
F.SAMPLE
S.SAMPLE
50/60Hz
12/24
SELECT
CR
INPUT
50/60
SELECT
50/60
INPUT
SNOOZE
INPUT
SLEEP
INPUT
HOUR
SET
MIN
SET
VDD
ALARM
OFF
SLEEP
OUT
ALARM
OUTPUT
VSS
19
ALARM
DISPLAY
COL ON
OUT
SEGMENT
OUTPUT
PF.
DET
1kHz
ICF-C212
12
SECTION 5
EXPLODED VIEW
NOTE :
• -XX, -X mean standardized parts, so they
• -XX, -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ••• (RED)
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.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference
number in the exploded views are not
supplied.
supplied.
• Accessories and packing materials are given
in the last of this parts list.
• Abbreviation
AUS
: Australian
SP
: Singapore
C&SA : Central & South America
MX
MX
: Mexican
The components identified by mark 0
or dotted line with mark 0 are critical
for safety.
Replace only with part number specified.
or dotted line with mark 0 are critical
for safety.
Replace only with part number specified.
SP1
L1
D7
W2
W1
1
15
2
3
4
5
8
7
12
10
13
16
14
not supplied
not supplied
11
T2
6
4
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
3-369-135-21 LID, BATTERY CASE
2
3-919-268-01 KNOB (VOL)
3
3-247-710-21 CABINET (LOWER)...(BLACK) (AUS,SP)
3
3-247-710-31 CABINET (LOWER)...(WHITE) (AUS,SP)
3
3-247-710-41 CABINET (LOWER)...(SILVER) (MX)
3
3-247-710-51 CABINET (LOWER)...(BLACK) (C&SA)
4
7-685-649-79 SCREW +P 3X14 TYPE2 NON-SLIT
5
3-247-703-01 POINTER
6
3-246-344-11 FOOT, RUBBER
7
1-535-771-31 TERMINAL (AUS,SP)
8
3-247-709-01 PANEL (FRONT) (AUS,C&SA,MX)
8
3-247-709-11 PANEL (FRONT)(SP)
10
3-247-706-01 KNOB (FUNCTION)...(BLACK) (AUS,SP,C&SA)
10
3-247-706-11 KNOB (FUNCTION)...(WHITE) (AUS,SP)
10
3-247-706-21 KNOB (FUNCTION)...(SILVER) (MX)
11
3-247-707-01 INDICATOR
12
X-3383-740-1 CABINET (UPPER) ASSY (BLACK)
(AUS,SP,C&SA)
12
X-3383-741-1 CABINET (UPPER) ASSY (WHITE) (AUS,SP)
12
X-3383-742-1 CABINET (UPPER) ASSY (SILVER) (MX)
*
13
A-3347-645-A MAIN BOARD, COMPLETE (C&SA,MX)
*
13
A-3347-801-A MAIN BOARD, COMPLETE (SP)
*
13
A-3663-943-A MAIN BOARD, COMPLETE (AUS)
0 14
1-555-795-00 CORD, POWER (SP)
* 0 14
1-769-339-22 CORD, POWER (C&SA,MX)
0 14
1-790-431-12 CORD, POWER (AUS)
15
3-044-228-01 KNOB (TUNE)
16
3-044-220-01 HOLDER (ANT)
D7
6-500-077-01 DIODE COG309T0A1 (AUS,C&SA,MX)
D7
6-500-078-01 DIODE COG309T0E1 (SP)
L1
1-419-532-41 COIL, FERRITE-ROD ANTENNA (MW)
SP1
1-529-456-13 SPEAKER (6.6CM)
0 T2
1-433-573-21 TRANSFORMER, POWER (C&SA,MX)
0 T2
1-433-574-31 TRANSFORMER, POWER (AUS,SP)
W1
1-535-804-71 SNAP, BATTERY
*
W2
1-769-137-11 CORD, CONNECTION (16 CORE)
Ver 1.1 2003.05
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