Read Sony CFD-Z500 / CFD-Z501 / CFD-Z550 Service Manual online
– 13 –
FM RF SSG
telescopic antenna
input
input
0.001
µ
F
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
AM RF signal
generator
generator
FM RF signal
generator
generator
telescopic antenna
input
input
set
0.01
µ
F
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
RADIO BAND switch: FM
RADIO BAND switch: FM
22.5 kHz frequency
deviation by 400 Hz signal
output level : as low as possible
deviation by 400 Hz signal
output level : as low as possible
• AM Section
Setting:
RADIO BAND switch: AM
RADIO BAND switch: AM
30% amplitude
modulation by 400 Hz signal
output level : as low as possible
modulation by 400 Hz signal
output level : as low as possible
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
CT1-2
86.5 MHz
109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1-1
86.5 MHz
109.5 MHz
FM IF ADJUSTMENT
T1
10.7 MHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
CT1-4
520 kHz
1,680 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
CT1-3
620 kHz
1,400 kHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
455 kHz
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
• Remove telescopic antenna in FM section adjustments.
FM VCO Adjustment
Setting:
Procedure:
1. Adjust RV1 so that the reading on the frequency counter becomes
1. Adjust RV1 so that the reading on the frequency counter becomes
in 76.0 kHz ± 50 Hz.
Adjustment Location: See page 14.
Modulation: no modulation
Output level: 0.1 V (100 dB)
Output level: 0.1 V (100 dB)
Adjustment Location: See page 14.
Click on the first or last page to see other CFD-Z500 / CFD-Z501 / CFD-Z550 service manuals if exist.