EasyManua.ls Logo

Sony ICF-C113 - Electrical Adjustments; AM and LW Alignment Procedures; FM Alignment Procedures

Sony ICF-C113
19 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
– 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.
( ): 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
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
22.5kHz frequency
deviation by 400Hz signal.
Output level :
as low as possible
set
FM ANT IN
0.01 F
µ
set
8
speaker terminal
level mete
r
L6
CT7
SW1
JW5 (GND)
JW9 (VT)
digital
voltmete
r

Related product manuals