ICF-C763, ICF-C763L - Sony Audio Service Manual (repair manual). Page 4

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ICF-C763/C763L
4
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
              AM FREQUENCY COVERAGE
ADJUSTMENT
  Frequency Display
530 kHz [531 kHz] 1,710 kHz [1,602 kHz]
  Reading on Digital voltmeter
3.0 
± 0.1 V
 10.0 
± 1.0V[9.0 ± 1.0V]
  Adjustment Part
L4
<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
530 kHz [531kHz]
1.490 kHz [1.404kHz]
MW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
MW FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
531 kHz
1.602 kHz
Reading on Digital voltmeter
2.75 
± 0.1 V
9.0 
± 1.0 V
Adjustment Part
L4
<confirmation>
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
621 kHz
1.404 kHz
LW FREQUENCY COVERAGE
ADJUSTMENT
   Frequency Display
153 kHz
279 kHz
   Reading on Digital voltmeter
2.3 
± 0.3 V
9.0 
± 0.1 V
   Adjustment Part
<confirmation>
CT4
             LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT2
162 kHz
243 kHz
• ICF-C763/C763L
FM FREQUENCY COVERAGE
           CONFIRMATION
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
3.2 
± 0.3 V
10.0 
± 1.5 V
Adjustment Part
<confirmation>
<confirmation>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
CT3
87.5 MHz
108 MHz
SECTION 2
ELECTRICAL ADJUSTMENTS
<  > : ICF-C763L
TUNER SECTION     0 dB = 1 
µV
• FM Section
  Setting:
  BAND button:FM
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
• AM Section
  Setting:
  BAND  button: AM <MW and LW>
TP (ANT)
FM RF signal
generator
0.01 
µ
F
set
22.5 kHz frequency
deviation by 400 Hz signal
output level : as low as possible
• Connecting Level Meter (FM, AM<MW and LW>)
32 
SPK+
level meter
(range 0.5-5V AC)
digital
voltmeter
100 k
TP (VT)
• Connecting Digital Voltmeter (FM, AM <MW and LW>)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment and Connect Location: See page 5.
• ICF-C763
[   ] : Italian model
• ICF-C763L
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