DOWNLOAD Sony ICF-C390 / ICF-C390L Service Manual ↓ Size: 666.6 KB | Pages: 16 in PDF or view online for FREE

Model
ICF-C390 ICF-C390L
Pages
16
Size
666.6 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c390-icf-c390l.pdf
Date
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– 5 –
INSTALLATION POWER CORD
 US model
EXCEPT US model
power cord
6
4
5
2
3
1
6
5
4
2
3
1
power cord
– 6 –
SECTION 3
DIAL POINTER INSTALLATION
5
 Knob 
    (VOL)
4
 Knob (band)
6
 Turn the knob (VOL) to the arrow direction fully
3
2
1
Knob (tuning)
Marking portion 
of the knob (VOL)
within arrow 
A
 
marked area, 
then attach it
Marking (A)
Marking
Pointer
A
B
A
PS
1
 Turn the knob (tuning) to the 
     arrow direction fully
3
 Turn the VR1 to the arrow direction fully
2
 Turn the shaft of CV1 to the 
     arrow direction fully
4
 Install the main board
CV1
VR1
Knob 
(tuning)
Note :
 Follow the installation procedure in the numerical order given.
– 7 –
 AM Section
Band switch : AM (ICF-C390)
: LW (French model)
: MW or LW (ICF-390L : AEP, UK model)
Volume
: MAX
 FM Section
Band switch : FM
Volume
: MAX
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
(            ) : Italian model only
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
EXCEPT French model
AM <MW> FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
(516.5kHz)
CT4
1,650kHz (1,631.5kHz)
AM <MW> TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 : ICF-390
600kHz
L1–1 : ICF-390L
CT1
1,400kHz
ICF-C390L
 EXCEPT French model
LW FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
CT6
145kHz
confirmation
261kHz
 French model
LW FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
145kHz
CT4
265kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 – 2 (AEP, UK model)
160kHz
L1 (French model)
CT5
240kHz
FM FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.5MHz
(87.35MHz)
CT3
109.5MHz
(108.25MHz)
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
CT2
109.5MHz
(98MHz)
Adjustment Location  : Main board (See page 8)
FM RF signal
generator
22.5kHz frequency 
deviation by 400Hz signal.
Output level : as low as possible
set
FM ANT
set
8
Ω
speaker terminal
level meter
SECTION 4
ELECTRICAL ADJUSTMENTS
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.
– 8 –
Adjustment Location :
L4 : AM Frequency Coverage Adjustment
CT4 : AM Frequency Coverage Adjustment
L3 : FM Frequency Coverage Adjustment
CT3 : FM Frequency Coverage Adjustment
CT1 : AM Tracking Adjustment
CT2 : FM Tracking Adjustment
T1: AM IF Alignment
L1 : AM Tracking Adjustment
[MAIN BOARD] (Component side)
L4 : MW (LW : French model)
       Frequency Coverage Adjustment
CT6 : LW Frequency Coverage Adjustment
CT4 : MW (LW : French model)
         Frequency Coverage Adjustment
L3 : FM Frequency Coverage Adjustment
CT3 : FM Frequency Coverage Adjustment
CT1 : MW Tracking Adjustment
L1–2 : LW Tracking Adjustment
CT2 : FM Tracking Adjustment
T1: AM IF Alignment
L1 : LW Tracking Adjustment
CT5 : LW Tracking Adjustment
[MAIN BOARD] (Component side)
AEP, UK model
French model
L1–1 : MW Tracking Adjustment
EXCEPT French model
EXCEPT French model
EXCEPT French model
ICF-C390
ICF-C390L
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