DOWNLOAD Sony ICF-C211 / ICF-C211L Service Manual ↓ Size: 779.5 KB | Pages: 15 in PDF or view online for FREE

Model
ICF-C211 ICF-C211L
Pages
15
Size
779.5 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-c211-icf-c211l.pdf
Date
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– 5 –
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (UPPER)
2-2. TRANSFORMER  BOARD
r
 The equipment can be removed using the following procedure.
Cabinet (upper) 
Transformer board
Set
Main board
1
 Screws +P 3x14
3
 Claw
2
 Claw
3
 Claw
5
 Claw
6
4
Cabinet (upper)
Cabinet (lower)
Panel
1
 Remove solder
2
Transformer board
Cabinet (lower)
Red
1
 Claws
2
3
Main board
Snap, battery
Cabinet (lower)
2-3. MAIN BOARD
– 6 –
INSTALLATION POWER CORD
NOTE FOR INSTALLATION (KNOB (VOL), KNOB (TUNE))
2
 Turn RV1 fully in the 
     arrow direction.
1
 Turn the shaft of CV1 
     fully in the arrow direction.
5
 Turn the knob (VOL) 
     fully in the arrow direction
    A to be the warking 
    between arrows A and B.
3
 Pointer
4
 Knob (tune)
6
Main board
Cabinet (lower)
Marking
CV1
B
A
RV1
RV1
Knob (VOL)
Cabinet (lower)
Power cord
– 7 –
SECTION 3
ELECTRICAL ADJUSTMENTS
 TUNER SECTION
 AM/LW Section
Procedure :
BAND
: AM (C211)
  LW (C211L)
VOLUME : MIN
 FM Section
Procedure :
BAND
: FM
VOLUME : MIN
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
antenna
terminal
(JW1)
0.01
µ
F
set
32 
Ω
speaker terminal
level meter
• 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
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
C211
AM FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
<516.5kHz>
CT4
1,750kHz <1631.5kHz>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
620kHz
CT1
1,400kHz
C211L
LW FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
145kHz
CT6
265kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
145kHz
CT5
265kHz
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.
L2
86.5MHz
<87.35MHz>
CT2
109.5MHz <108.25MHz>
– 8 –
CT3 : FM Frequency Coverage Adjustment
L3:  FM Frequency Coverage Adjustment
CT6 : LW Frequency Coverage Adjustment
L4 : LW Frequency Coverage Adjustment 
L1 : LW Tracking Adjustment 
T1 : AM IF Adjustment
CT2 : FM Tracking Adjustment
CT5 : LW Tracking Adjustment
L2 : FM Tracking Adjustment
CT3 : FM Frequency Coverage Adjustment
L3 : FM Frequency Coverage Adjustment (Except IT model)
L3 : FM Frequency Coverage Adjustment (IT model)
L4 : AM Frequency Coverage Adjustment 
CT4 : AM Frequency Coverage Adjustment
L1 : AM Tracking Adjustment 
T1 : AM IF Adjustment
CT1 : AM Tracking Adjustment
CT2 : FM Tracking Adjustment
L2 : FM Tracking Adjustment
JW1
JW1
ICF-C211L
ICF-C211
Adjustment Location : Main board (Component side)
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