Sony ICF-R40 Service Manual ▷ View online
ICF-R40
– 11 –
– 12 –
Note on Schematic Diagram:
• 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.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 3 V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
f
: AM
5-3.
SCHEMATIC DIAGRAM
• IC Block Diagrams
IC1
CXA1280N
IC2
BU2305F-E2
GND
GND
AF OUT
VCC
RIPPLE FIL
TER
AF IN
DET
AFC AGC
AFC AGC
GND
METER
NC
FM IF
AM IF
BAND
GND
GND
DISCRI
NF
VOL
AM OSC
AFC
FM OSC
REG
FM RF
AM ANT
NC
FM RF IN
GND
MIX OUT
30 29
28 27 26
25
24
23
22
21 20
19
18 17 16
12 13 14 15
8 9 10
11
4 5
6
1
2
3
7
AF POWER
AMP
AM IF AMP,
DET, AGC
TUNING
METER
FM IF
AMP
AM
FRONT-END
FM
FRONT-END
FM
DISCRIMINATOR
OSC1
OSC2
OSC3
GND
VCC
SET
RESET
OUT
8
4
5
6
1
2
3
7
23 BIT
COUNTER
CHATTERING
PROTECTOR
CONTROL
– 13 –
– 14 –
SECTION 6
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.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
SECTION 7
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
• 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
When indicating parts by reference
number, please include the board.
number, please include the board.
MAIN
1
A-3638-700-A CABINET (FRONT) ASSY
2
3-034-344-01 POINTER
3
3-034-347-01 GEAR (MIDWAY)
4
3-034-348-01 KNOB (TUNE)
5
3-895-823-11 SCREW (B1.4X3), TAPPING
6
A-3638-697-A REEL ASSY
7
3-032-525-01 SCREW
8
3-032-492-01 PLATE (REWIND)
9
3-034-341-21 CABINET (REAR)
10
3-034-349-01 KNOB (POWER)
11
3-015-033-01 SCREW (DIA. 1.4X4), PRECISION
12
3-034-352-01 LID, BATTERY CASE
13
3-034-357-01 COMBINED (KNOB) (including
KNOB (REWIND), KNOB (EARPHONE/
SPEAKER),KNOB (NOISE CUT),
KNOB (2 BAND))
14
3-910-816-01 SCREW (M1.7x10)
15
3-034-212-01 TERMINAL (+/–), BATTERY
16
3-034-210-01 TERMINAL (+), BATTERY
17
3-034-211-01 TERMINAL (–), BATTERY
* 18
A-3683-046-A MAIN BOARD, COMPLETE
19
3-034-358-01 COMBINED (BLIND PLATE) (including
BLIND PLATE, HOLDER (BAR ANTNNA))
20
3-880-990-00 SCREW (1.7X3), FLAT, (+) SPECIAL
21
3-034-346-01 GEAR (TUNING CAPACITOR)
22
3-384-797-01 SCREW (1.4X4)
23
3-036-666-01 SPRING (ELECTROSTATIC)
24
9-911-816-01 CLOTH, BATTERY PICK
25
3-831-441-99 CUSHION (A)
L1
1-754-049-11 ANTENNA, FERRITE-ROD (AM)
SP1
1-529-187-11 SPEAKER (2.8cm)
4
A
r
B
r
C
r
D
(including
r
B,
r
C,
r
D)
(including
4
A)
L1
SP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
24
16
17
18
19
21
22
20
23
25
*
A-3683-046-A MAIN BOARD, COMPLETE
*********************
3-034-346-01 GEAR (TUNING CAPACITOR)
3-034-358-01 COMBINED (BLIND PLATE) (including BLIND
3-034-358-01 COMBINED (BLIND PLATE) (including BLIND
PLATE, HOLDER (BAR ANTENNA))
3-384-797-01 SCREW (1.4X4)
3-880-990-00 SCREW (1.7X3), FLAT, (+) SPECIAL
3-880-990-00 SCREW (1.7X3), FLAT, (+) SPECIAL
<CAPACITOR>
C1
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C2
1-126-157-11 ELECT
10uF
20%
16V
C4
1-162-919-11 CERAMIC CHIP
22PF
5%
50V
C5
1-162-922-11 CERAMIC CHIP
39PF
5%
50V
C7
1-162-917-11 CERAMIC CHIP
15PF
5%
50V
C9
1-164-275-91 CERAMIC CHIP
9PF
5%
50V
C11
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C12
1-164-346-11 CERAMIC CHIP
1uF
16V
C13
1-162-970-11 CERAMIC CHIP
0.01uF
10%
25V
C14
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C15
1-164-346-11 CERAMIC CHIP
1uF
16V
C16
1-135-151-21 TANTALUM CHIP 4.7uF
20%
4V
C17
1-126-157-11 ELECT
10uF
20%
16V
C18
1-164-227-11 CERAMIC CHIP
0.022uF
10%
25V
C19
1-126-157-11 ELECT
10uF
20%
16V
C20
1-164-346-11 CERAMIC CHIP
1uF
16V
C21
1-164-346-11 CERAMIC CHIP
1uF
16V
C22
1-127-569-11 TANTAL. CHIP
100uF
20%
4V
C23
1-124-434-00 ELECT
220uF
20%
4V
C24
1-162-927-11 CERAMIC CHIP
100PF
5%
50V
C25
1-165-176-11 CERAMIC CHIP
0.047uF
10%
16V
C26
1-164-346-11 CERAMIC CHIP
1uF
16V
C27
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C28
1-164-227-11 CERAMIC CHIP
0.022uF
10%
25V
C29
1-164-677-11 CERAMIC CHIP
0.033uF
10%
16V
C30
1-164-227-11 CERAMIC CHIP
0.022uF
10%
25V
C31
1-162-964-11 CERAMIC CHIP
0.001uF
10%
50V
C32
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C33
1-162-968-11 CERAMIC CHIP
0.0047uF 10%
50V
C34
1-164-156-11 CERAMIC CHIP
0.1uF
25V
C35
1-164-346-11 CERAMIC CHIP
1uF
16V
<CERAMIC FILTER>
CF1
1-567-177-00 FILTER, CERAMIC (455kHz)
CF2
1-579-632-51 FILTER, CERAMIC (10.7MHz)
CF3
1-579-632-51 FILTER, CERAMIC (10.7MHz)
<VARIABLE CAPACITOR>
CT1
1-141-607-11 CAP, VAR
CV1
1-141-607-11 CAP, VAR (TUNE)
<DIODE>
D1
8-719-800-76 DIODE 1SS226
D2
8-719-062-42 LED BR1111R-TR (TUNE)
D5
8-719-046-91 DIODE MA2S111
<IC>
IC1
8-752-036-29 IC CXA1280N
IC2
8-759-583-17 IC BU2305F-E2
<JACK>
J1
1-785-506-11 JACK (@)
<COIL>
L1
1-754-049-11 ANTENNA, FERRITE-ROD (AM)
L2
1-419-109-11 COIL, AIR-CORE
L3
1-419-108-11 COIL, AIR-CORE
L4
1-406-255-11 COIL (OSC)
L5
1-412-971-31 INDUCTOR 0.22uH
L7
1-412-947-11 INDUCTOR 4.7uH
L8
1-412-947-11 INDUCTOR 4.7uH
L11
1-412-947-11 INDUCTOR 4.7uH
L12
1-412-947-11 INDUCTOR 4.7uH
<TRANSISTOR>
Q1
8-729-037-71 TRANSISTOR UN9210J-(TX).SO
Q2
8-729-037-92 TRANSISTOR 2SD2216J-R(TX).SO
Q3
8-729-800-71 TRANSISTOR 2SB815B7-TB
<RESISTOR>
R1
1-216-813-11 METAL CHIP
220
5%
1/16W
R3
1-216-845-11 METAL CHIP
100K
5%
1/16W
R4
1-216-817-11 METAL CHIP
470
5%
1/16W
– 15 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MAIN
R5
1-216-805-11 METAL CHIP
47
5%
1/16W
R6
1-216-833-11 METAL CHIP
10K
5%
1/16W
R7
1-216-825-11 METAL CHIP
2.2K
5%
1/16W
R8
1-216-839-11 METAL CHIP
33K
5%
1/16W
R9
1-216-837-11 METAL CHIP
22K
5%
1/16W
R10
1-216-845-11 METAL CHIP
100K
5%
1/16W
R11
1-216-829-11 METAL CHIP
4.7K
5%
1/16W
R12
1-216-829-11 METAL CHIP
4.7K
5%
1/16W
R13
1-216-829-11 METAL CHIP
4.7K
5%
1/16W
R15
1-216-853-11 METAL CHIP
470K
5%
1/16W
R16
1-216-857-11 METAL CHIP
1M
5%
1/16W
R17
1-216-845-11 METAL CHIP
100K
5%
1/16W
R18
1-216-825-11 METAL CHIP
2.2K
5%
1/16W
R19
1-216-841-11 METAL CHIP
47K
5%
1/16W
R20
1-216-821-11 METAL CHIP
1K
5%
1/16W
R30
1-216-821-11 METAL CHIP
1K
5%
1/16W
R31
1-216-821-11 METAL CHIP
1K
5%
1/16W
R32
1-216-827-11 METAL CHIP
3.3K
5%
1/16W
R33
1-216-821-11 METAL CHIP
1K
5%
1/16W
R34
1-216-825-11 METAL CHIP
2.2K
5%
1/16W
R35
1-216-821-11 METAL CHIP
1K
5%
1/16W
<VALIABLE RESISTOR>
RV1
1-225-779-11 RES, VAR 20K (VOL)
<SWITCH>
S1
1-572-922-11 SWITCH, SLIDE (
@/™)
S2
1-762-651-11 SWITCH, SLIDE (POWER)
S4
1-572-922-11 SWITCH, SLIDE (BAND)
S5
1-572-922-11 SWITCH, SLIDE (NOISE CUT)
<TRANSFORMER>
T1
1-404-444-31 TRANSFORMER, IF
************************************************************
MISCELLANEOUS
*************
*************
6
A-3638-697-A REEL ASSY
SP1
1-529-187-11 SPEAKER (2.8cm)
************************************************************
ACCESSORIES & PACKING MATERIALS
*******************************
*******************************
3-036-916-21 CASE, CARRYING
3-865-825-11 MANUAL, INSTRUCTION
3-865-825-11 MANUAL, INSTRUCTION
(JAPANESE,ENGLISH,KOREAN,CHINESE)
– 16 –
ICF-R40
Sony Corporation
Parsonal A&V Products Company
9-926-942-11
99C05031-1
Printed in Japan © 1999. 3
Published by Quality Engineering Dept.
(Shinagawa)