DOWNLOAD Sony ICF-C290 / ICF-C290L Service Manual ↓ Size: 961.45 KB | Pages: 12 in PDF or view online for FREE

Model
ICF-C290 ICF-C290L
Pages
12
Size
961.45 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c290-icf-c290l.pdf
Date
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Sony ICF-C290 / ICF-C290L Service Manual ▷ View online

– 3 –
SECTION  1
GENERAL
This section is extracted from
instruction manual.
– 4 –
Set the power cord as illustrated below, then install the lower cabinet.
SETTING  THE  POWER  CORD
SECTION  2
SETTING
KNOB  SETTING
7
 claws
5
 MAIN board
3
Turn shaft of CV1 to the 
arrow 
A
 direction fully.
4
Turn RV1 to the arrow 
B
 
direction fully.
6
claw
2
Turn the knob (VOL) to the 
arrow 
B
 direction fully.
1
Turn the knob (tuning) to the 
arrow 
A
 direction fully.
A
B
lower cabinet
power cord
(
): Italian model
FM  FREQUENCY  COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.5 MHz (87.35 MHz)
CT3
109.5 MHz (108.25 MHz)
FM  TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
CT2
109.5 MHz (108.25 MHz)
AM  FREQUENCY  COVERAGE  ADJUSTMENT (C290)
Adjust for a maximum reading on level meter.
L4
520 kHz (516.5 kHZ)
CT4
1,650 kHz (1,631.5 kHz)
AM  TRACKING  ADJUSTMENT (C290)
Adjust for a maximum reading on level meter.
L1
600 kHz
CT1
1,400 kHz
LW  FREQUENCY  COVERAGE  ADJUSTMENT (C290L)
Adjust for a maximum reading on level meter.
L4
145 kHz
CT6
265 kHz
LW  TRACKING  ADJUSTMENT (C290L)
Adjust for a maximum reading on level meter.
L1
160 kHz
CT5
240 kHz
AM  IF  ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455 kHz
– 5 –
SECTION  3
ELECTRICAL  ADJUSTMENTS
FM  SECTION
Setting:
BAND switch: FM
AM  SECTION
Setting:
BAND switch: AM/LW
• Repeat the procedures in each adjustment several times, and
the frequency coverage and tracking adjustments should be fi-
nally done by the trimmer capacitors.
FM RF signal 
generator
400 Hz, 30% FM modulation 
frequency deviation 
±
 22.5 kHz   
Output level: as low as possible
0.01 
µ
F
set
lead antenna 
input terminal
AM RF signal 
generator
400 Hz, 30%
AM modulation
Output level: as low as possible
Put the lead-wire
antenna close to 
the set.
level meter
set
speaker terminal
8 
Ω
+
–
– 6 –
Adjustment Location: MAIN board (Conductor Side)
IC1
CT6
LW FREQUENCY
COVERAGE
AM FREQUENCY
COVERAGE
FM TRACKING
AM TRACKING
LW TRACKING
AM IF
FM FREQUENCY
COVERAGE
L4
L3
L3
CV1
CT2
CT5
L1
T1
CT1
CT4
CT3
Page of 12
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  • DOWNLOAD Sony ICF-C290 / ICF-C290L Service Manual ↓ Size: 961.45 KB | Pages: 12 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony ICF-C290 / ICF-C290L in PDF for free, which will help you to disassemble, recover, fix and repair Sony ICF-C290 / ICF-C290L Audio. Information contained in Sony ICF-C290 / ICF-C290L Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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