Sony ICF-C113 / ICF-C113L / ICF-C113V Service Manual ▷ View online
– 5 –
SECTION 3
ELECTRICAL ADJUSTMENTS
AM Section
Band button : AM (ICF-C113/C113V)
: MW or LW (ICF-C113L)
Volume
: MAX
FM Section
Band button : FM
: TV (ICF-C113V)
Volume
: MAX
[MAIN BOARD]
(Component side)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
( ) : AEP, UK, Italian, Australian, E, Swiss model only
AM IF ALIGNMENT
Adjust for a maximum reading on level meter.
T2
450kHz
AM <MW> FREQUENCY COVERAGE ADJUSTMENT
Adjust parts
Frequecy display
Reading on digital
voltmeter
L6
530kHz (531kHz)
2.65
±
0.1V (ICF-C113/C113V)
2.65
±
0.1V (ICF-C113L)
Less than 10.0V
confirmation
1,710kHz (1,602kHz)
Standard 9.5V
(Less than 9.5V)
(Standard 9.0V)
AM <MW> TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 :ICF-C113/C113V
L3–1 :ICF-C113L
580kHz
(621kHz)
CT3
1,490kHz
(1,404kHz)
ICF-C113L
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust parts
Frequecy display
Reading on digital
voltmeter
CT7
153kHz
More than 2.25V
(
±
0.05V)
confirmation
279kHz
Less than 9.5V
(Standard 9.0V)
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 – 2
162kHz
CT2
243kHz
ICF-C113/C113L
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust parts
Frequecy display
Reading on digital
voltmeter
L5
87.5MHz
3.5
±
0.1V
confirmation
108.0MHz
Less than 11.8V
(Standard 10.5V)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 – 2
87.5MHz
CT5
108.0MHz
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
FM RF signal
generator
generator
22.5kHz frequency
deviation by 400Hz signal.
Output level :
as low as possible
deviation by 400Hz signal.
Output level :
as low as possible
set
FM ANT IN
0.01 F
µ
set
8
Ω
speaker terminal
level meter
L6
CT7
SW1
JW5 (GND)
JW9 (VT)
digital
voltmeter
– 6 –
CF-C113V
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust parts
Frequecy display
Reading on digital
voltmeter
L5
TV 2CH
59.75MHz
2.35
±
0.1V
confirmation
FM
108.0MHz
Less than 13.5V
(Standard 12.5V)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 – 2
TV 2CH
59.75MHz
CT5
FM
108.0MHz
TV IF ALIGNMENT
Adjust for a maximum reading on level meter.
T1
10.7MHz
TV FREQUENCY COVERAGE ADJUSTMENT
Adjust parts
Frequecy display
Reading on digital
voltmeter
L2
WEATHER 2CH
162.4MHz
1.0
±
0.1V
confirmation
TV 13CH
215.75MHz
less than 12.3V
(Standard 11.0V)
TV TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
WEATHER 2CH
162.4MHz
CT1
TV 13CH
215.75MHz
Adjustment Location :
ICF-C113/C113V
L2 : TV Frequency
Coverage Adjustment
Coverage Adjustment
L5 : FM Frequency
Coverage Adjustment
Coverage Adjustment
L6 : AM Frequency
Coverage Adjustment
Coverage Adjustment
L1 : TV Tracking
Adjustment
Adjustment
L3 : AM Tracking Adjustment
T2: AM IF Alignment
T1 : TV IF Alignment
CT1 : TV Tracking
Adjustment
Adjustment
[MAIN BOARD]
(Component side)
(Component side)
CT3 : AM Tracking Adjustment
CT5 : FM Tracking Adjustment
L4 —1 : FM Tracking Adjustmen
L4 —2 : FM Tracking Adjustmen
JW5
GND
VT
JW9
– 7 –
ICF-C113L
CT7 : LW Frequency
Coverage Adjustment
Coverage Adjustment
L3
±
2 : LW Tracking Adjustment
L4
±
2 : FM Tracking Adjustment
L4
±
1 : FM Tracking Adjustment
T2 : AM IF Alignment
L3
±
1 : MW Tracking Adjustment
CT4 : LW Tracking
Adjustment
Adjustment
[MAIN BOARD]
(Component side)
(Component side)
L6 : MW Frequency
Coverage Adjustment
Coverage Adjustment
L5 : FM Frequency
Coverage Adjustment
Coverage Adjustment
CT3 : MW Tracking Adjustment
CT5 : FM Tracking
Adjustment
Adjustment
JW5
GND
VT
JW9
SECTION 4
DIAGRAMS
r
CIRCUIT BOARDS LOCATION
KEY board
MAIN board
SECONDARY board
PRIMARY board
ALARM board
BACK-LIGHT board
– 8 –
Pin No.
Pin name
I/O
Description
1
INIT OUT
O
Initial output terminal.
2
COLOR1
O
LCD back-light drive. “H” : Lighting
3
MUTE
O
Mute signal output. “L” : Mute ON
4
ALMA
O
ALARM A LED drive. “H” : Lighting
5
ALMB
O
ALARM B LED drive. “H” : Lighting
6
KS0
O
Key source output terminal.
7
KS1
O
Key source output terminal.
8
KS2
O
Key source output terminal.
9
KS3
O
Key source output terminal.
10
KR0
I
Key return input terminal.
11
KR1
I
Key return input terminal.
12
KR2
I
Key return input terminal.
13
KR3
I
Key return input terminal.
14
BAND1
O
Band select signal output.
15
BAND2
O
Band select signal output.
16
V AMP
–
Not used (Open).
17
COLOR2
O
LCD back-light drive. “H” : Lighting
18
GND
–
Ground.
19
EO
O
PLL error output terminal.
20
VCOL
I
FM/AM local oscillation input terminal.
21
VCOH
I
TV local oscillation input terminal.
22
VREG1
–
Voltage REG terminal for LCD.
23
VDD
–
Power supply (+2.9V).
24
X OUT
O
System clock oscillation terminal (75kHz).
25
X IN
I
System clock oscillation terminal (75kHz).
26
VREG2
–
Voltage REG terminal for LCD.
27
VLCD0
–
LCD bias terminal.
28
CAPO
–
LCD bias terminal.
29
CAPI
–
LCD bias terminal.
30
VLCD1
–
LCD bias terminal.
31
COM0
O
Common output 0.
32
COM1
O
Common output 1.
33
COM2
O
Common output 2.
34
COM3
O
Common output 3.
35 – 49
LCD0 – 14
O
LCD segment drive output.
50
CE
I
Chip eneble input for LCD load.
51
INT
I
Intial terminal.
52
BEEP
O
Beep signal output terminal.
53
–
Not used (Open).
54
PB1
I
Mode identification terminal.
55
PB2
I
Mode identification terminal.
56
PB3
I
Mode identification terminal.
4-1. EXPLANATION OF IC TERMINALS
IC3
µ
PD17071 (LCD DRIVE, SYSTEM CONTROL)
Click on the first or last page to see other ICF-C113 / ICF-C113L / ICF-C113V service manuals if exist.