Sony ICF-C713L Service Manual ▷ View online
SECTION 4
DIAGRAMS
– 10 –
– 9 –
4-1. PRINTED WIRING BOARDS
ICF-C713L
• Semiconductor Location
Ref. No.
Location
D1
E-8
D4
F-9
D5
F-9
D50
D-11
D51
C-11
(D52)
B-11
D53
D-11
D80
F-3
D81
E-3
D84
E-4
IC1
F-10
IC50
C-10
IC80
E-2
Ref. No.
Location
LD80
A-12
LD81
A-10
LD82
A-9
Q1
G-9
Q2
F-9
Q3
D-9
Q4
G-9
Q5
F-12
Q6
E-12
Q50
D-10
Q51
D-10
Q52
B-9
Q53
B-9
Q80
E-4
( ) : UK model only
Note :
•
•
: parts extracted from the component side.
•
: parts extracted from the conductor side.
•
indicates side identified with part number.
• Voltage is dc with respect to ground under no-signal (detuned)
conditions.
• no mark : FM
( ) : LW
< >
< >
: MW
• Voltage are taken with a VOM (Input Impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerance.
tolerance.
• Signal path.
: FM
: MW
– 12 –
– 11 –
4-2. SCHEMATIC DIAGRAM • Refer to page 13 for IC Block Diagram.
ICF-C713L
Note :
• All capacitors are in µF unless otherwise noted. pF : µµF 50 WV
• 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.
Note : The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
•
: B+ Line.
B
– 13 –
• IC Block Diagram
IC1 CXA1019M
1
2
3
4
5
6
7
8
9
10
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
22
21
20
19
23
24
18
17 16 15
28 27 26 25
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
BAND
SELECT
FM/AM
MIX OUT
N.C
FE GND
AM RF IN
FM RF
REG OUT
FM OSC
ANT IN
AFC
AM OSC
VOL
MF
FM DISCRI
GND
– 14 –
SECTION 5
EXPLODED VIEWS
5-1. KEY BOARD SECTION
N
N
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories and packing materials are
given in the last of this parts list.
The components identified by
mark
mark
! or dotted line with mark.
! are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-015-449-01 CABINET (UPPER), BASE
2
3-015-459-01 BUTTON (PRESET)
3
3-017-680-01 SPRING (PRESET)
4
3-015-450-21 CABINET (LOWER), BASE
5
3-368-852-01 FOOT
6
7-685-106-01 SCREW +P 2X10 TYPE1
! T80
1-468-232-11 POWER UNIT (AEP)
! T80
1-468-233-11 POWER UNIT (UK)
6
6
5
4
3
2
T80
(UK)
(UK)
T80
(AEP)
(AEP)
KEY board
(supplied with MAIN board, complete)
(supplied with MAIN board, complete)
1
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