Sony ICF-C290 / ICF-C290L Service Manual ▷ View online
– 14 –
– 13 –
4-4.
SCHEMATIC DIAGRAM (E MODEL)
• See page 15 for IC Block Diagrams.
ICF-C290/C290L
– 15 –
• IC Block Diagrams
IC1
CXA1019S
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
IC2
LM8560N
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
DISPLA
Y
SLEEP
DISPLA
Y
HOUR
SET
MIN
SET
VSS
ALARM
OFF
SLEEP
OFF
ALARM
OUTPUT
VDD
19
ALARM
DISPLA
Y
NC
SEGMENT
OUTPUT
PF.
DET
1kHz
– 16 –
SECTION 5
EXPLODED VIEW
• 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 num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given in
the last of the electrical parts list.
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)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
• Abbreviation
AUS : Australian
EA : Saudi Arabia
IT
EA : Saudi Arabia
IT
: Italian
SP
: Singapore
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-018-229-01 KNOB (FUNCTION) (BLACK)
1
3-018-229-11 KNOB (FUNCTION) (WHITE)
2
3-919-270-01 MARKER
3
3-018-230-01 SCALE, DIAL (C290: AEP, IT, EA, SP)
3
3-018-230-11 SCALE, DIAL (C290: AUS, UK, E)
3
3-018-230-21 SCALE, DIAL (C290L)
4
3-018-226-01 CABINET (UPPER) (BLACK)
4
3-018-226-11 CABINET (UPPER) (WHITE)
5
3-018-228-01 BUTTON (BLACK)
5
3-018-228-11 BUTTON (WHITE)
* 6
A-3662-242-A MAIN BOARD, COMPLETE (C290L)
* 6
A-3662-244-A MAIN BOARD, COMPLETE (C290: AUS)
* 6
A-3662-246-A MAIN BOARD, COMPLETE (C290: AEP, SP)
* 6
A-3662-247-A MAIN BOARD, COMPLETE (C290: IT)
* 6
A-3662-248-A MAIN BOARD, COMPLETE (C290: UK)
* 6
A-3662-801-A MAIN BOARD, COMPLETE (C290: EA)
* 6
A-3679-648-A MAIN BOARD, COMPLETE (C290: E)
7
1-535-804-21 SNAP, BATTERY
8
3-919-271-01 HOLDER (ANTENNA) (C290: E)
8
3-922-610-01 HOLDER (ANTENNA) (C290: EXCEPT E/C290L)
9
3-919-267-01 KNOB (TUNE) (C290: E)
9
3-922-609-01 KNOB (TUNE) (C290: EXCEPT E/C290L)
10
3-919-269-01 POINTER
11
3-919-268-01 KNOB (VOL)
* 12
1-654-818-11 POEWR SUPPLY BOARD (C290: E)
13
3-018-227-01 CABINET (LOWER) (BLACK) (C290)
13
3-018-227-11 CABINET (LOWER) (WHITE) (C290)
13
3-018-227-21 CABINET (LOWER) (BLACK) (C290L)
13
3-018-227-31 CABINET (LOWER) (WHITE) (C290L)
14
3-369-135-21 LID, BATTERY CASE
! 15
1-555-795-00 CORD, POWER (C290: AEP, IT, EA, SP/C290L)
! 15
1-558-566-21 CORD, POWER (C290: E)
! 15
1-765-458-11 CORD, POWER (C290: AUS)
! 15
1-769-578-11 CORD, POWER (C290: UK)
17
7-621-770-87 SCREW +P 2.6X5 (C290: E)
18
7-685-649-79 SCREW +P 3X14 TYPE2 NON-SLIT
* 19
3-905-767-01 PLATE, SHIELD (C290L)
D7
1-809-515-11 DIODE LTC-6512PDK2 (C290: AUS, UK, E)
D7
1-809-515-21 DIODE LTC-6512PDK4
(C290: AEP, IT, EA, SP/C290L)
L1
1-501-765-11 ANTENNA, FERRITE-ROD (AM)
(C290: EXCEPT E)
L1
1-501-742-11 ANTENNA, FERRITE-ROD (MW) (C290: E)
L1
1-501-777-11 ANTENNA, FERRITE-ROD (LW) (C290L)
SP1
1-504-748-11 SPEAKER (6.6CM)
! T2
1-427-927-11 TRANSFORMER, POWER (C290: E)
! T2
1-427-928-11 TRANSFORMER, POWER
(C290: EXCEPT E/C290L)
The components identified by mark
! or dotted line with mark ! are
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
not supplied
not supplied
SP1
15
1
15
15
2
4
3
5
18
18
14
18
13
11
10
19
8
17
6
(including
●
A)
7
L1
D7
T2
12
(E model)
●
A (except E model)
9
– 17 –
SECTION 6
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
NOTE:
• Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used
on the set.
fied 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.
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
• Abbreviation
AUS : Australian
EA: Saudi Arabia
IT
: Italian
SP : Singapore
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u: µ, for example:
uA. .
uA. .
: µA. .
uPA. . : µPA. .
uPB. .
: µPB. .
uPC. . : µPC. .
uPD. .
: µPD. .
• CAPACITORS
uF: µF
• COILS
uH: µH
Ref. No.
Part No.
Description
Remark
The components identified by
mark
mark
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
specified.
*
A-3662-242-A MAIN BOARD, COMPLETE (C290L)
*
A-3662-244-A MAIN BOARD, COMPLETE (C290: AUS)
*
A-3662-246-A MAIN BOARD, COMPLETE (C290: AEP, SP)
*
A-3662-247-A MAIN BOARD, COMPLETE (C290: IT)
*
A-3662-248-A MAIN BOARD, COMPLETE (C290: UK)
*
A-3662-801-A MAIN BOARD, COMPLETE (C290: EA)
*
A-3679-648-A MAIN BOARD, COMPLETE (C290: E)
*********************
1-535-804-21 SNAP, BATTERY
*
3-905-767-01 PLATE, SHIELD (C290L)
3-919-271-01 HOLDER (ANTENNA) (C290: E)
3-922-610-01 HOLDER (ANTENNA) (C290: EXCEPT E/C290L)
7-621-770-87 SCREW +P 2.6X5 (C290: E)
3-919-271-01 HOLDER (ANTENNA) (C290: E)
3-922-610-01 HOLDER (ANTENNA) (C290: EXCEPT E/C290L)
7-621-770-87 SCREW +P 2.6X5 (C290: E)
< CAPACITOR >
C1
1-102-936-00 CERAMIC
3.0PF
+-0.25PF
50V
(C290: EXCEPT E)
C1
1-102-951-00 CERAMIC
15PF
5%
50V
(C290L)
C2
1-102-951-00 CERAMIC
15PF
5%
50V
(C290: AUS, AEP, UK, SP/C290L)
C2
1-102-952-00 CERAMIC
16PF
5%
50V
(C290: E)
C2
1-102-958-00 CERAMIC
20PF
5%
50V
(C290: IT, EA)
C3
1-102-960-00 CERAMIC
24PF
5%
50V
(C290: AUS, AEP, UK, E, SP/C290L)
C3
1-102-961-00 CERAMIC
27PF
5%
50V
(C290: IT, EA)
C4
1-101-081-00 CERAMIC
130PF
5%
50V
(C290L)
C4
1-102-937-00 CERAMIC
4.0PF
+-0.25PF
50V
(C290: EXCEPT E)
C5
1-101-081-00 CERAMIC
130PF
5%
50V
(C290: E)
C6
1-101-880-00 CERAMIC
47PF
5%
50V
C7
1-104-664-11 ELECT
47uF
20%
10V
C8
1-101-004-00 CERAMIC
0.01uF
50V
C9
1-126-963-11 ELECT
4.7uF
20%
50V
C10
1-101-004-00 CERAMIC
0.01uF
50V
C11
1-101-004-00 CERAMIC
0.01uF
50V
C12
1-101-004-00 CERAMIC
0.01uF
50V
C13
1-126-963-11 ELECT
4.7uF
20%
50V
C14
1-124-907-11 ELECT
10uF
20%
50V
C15
1-101-005-00 CERAMIC
22000PF
50V
(C290)
C15
1-162-847-11 CERAMIC
0.047uF
10%
16V
(C290L)
C16
1-124-903-11 ELECT
1uF
20%
50V
C17
1-104-664-11 ELECT
47uF
20%
10V
C18
1-162-851-11 CERAMIC
0.1uF
10%
16V
C19
1-162-851-11 CERAMIC
0.1uF
10%
16V
C20
1-126-968-11 ELECT
100uF
20%
6.3V
C21
1-161-049-00 CERAMIC
0.0068uF 10%
50V
(C290: E)
C21
1-162-837-11 CERAMIC
0.0068uF 10%
16V
(C290: EXCEPT E/C290L)
C22
1-101-004-00 CERAMIC
0.01uF
50V
C23
1-101-004-00 CERAMIC
0.01uF
50V
C24
1-101-004-00 CERAMIC
0.01uF
50V
C25
1-101-004-00 CERAMIC
0.01uF
50V
C26
1-126-934-11 ELECT
220uF
20%
16V
C27
1-124-472-11 ELECT
470uF
20%
10V
(C290: EXCEPT E/C290L)
C27
1-126-941-11 ELECT
470uF
20%
6.3V
(C290: E)
C28
1-124-471-00 ELECT
1000uF
20%
6.3V
(C290: E)
C28
1-126-926-11 ELECT
1000uF
20%
10V
(C290: EXCEPT E/C290L)
C29
1-101-004-00 CERAMIC
0.01uF
50V
C30
1-101-004-00 CERAMIC
0.01uF
50V
C31
1-126-961-11 ELECT
2.2uF
20%
50V
(C290L)
< FILTER >
CF1
1-577-072-11 FILTER, CERAMIC (C290)
CF1
1-578-677-11 FILTER, CRYSTAL (C290L)
CF2
1-760-144-61 FILTER, CERAMIC
CF3
1-760-144-61 FILTER, CERAMIC
< CONNECTOR >
* CN1
1-769-137-11 CORD, CONNECTION (16 CORE)
< TRIMMER >
CT5
1-141-227-00 CAP, TRIMMER 20PF (C290L)
MAIN
When indicating parts by reference
number, please include the board.
number, please include the board.
Click on the first or last page to see other ICF-C290 / ICF-C290L service manuals if exist.