CFD-V14 - Sony Audio Service Manual (repair manual). Page 9

Read Sony CFD-V14 Service Manual online

– 9 –
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
<        > : East European model only
[         ] : Italian model only
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
455kHz
AM FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
[516kHz]
CT4
1,680kHz
[1,630kHz]
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
620kHz
CT3
1,400kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
10.7MHz
FM FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
87.0MHz
<64.0MHz>
[87.35MHz]
CT2
108.3MHz
<109.5MHz>
[108.25MHz]
VCO Adjustment
Procedure :
1. Connect the frequency counter to 4 and 7 pin of  IC 1 as
shown the figure below.
2. Turn the set to 98MHz.
3. Adjust RV1 for 75.95kHz – 76.05kHz reading frequency counter.

[ MAIN BOARD] (Conductor side)

Adjustment Location : Main board (See page 10)
FM  RF signal
generator
Carrier frequency : 98MHz 
Modulation : No modulation
Output level : 100dB 
µ
 (100mV )
set
telescopic
antenna
terminal
0.01
µ
F
 TUNER  SECTION
0dB = 1
µ
V
 AM Section
Function switch : AM
Volume
: MIN
 FM Section
Function switch : 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
telescopic
antenna
terminal
0.01
µ
F
set
32
Ω
J301 (phones)
level meter
frequency counter
33k
Ω
1
µ
F
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
87.0MHz
<68.0MHz>
[87.35MHz]
CT1
108.3MHz
<102.0MHz>
[108.25MHz]

Adjustment Location : Main board (See page 10)
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