Sony CFS-B5LMK2, Руководство по обслуживанию

Страница: 9 / 22

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4-2. TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
BAND switch: FM
22.5 kHz frequency
deviation by 400 Hz signal
output level : as low as possible
• MW/LW Section
Setting:
BAND switch: MW or LW
30% amplitude
modulation by 400 Hz signal
output level : as low as possible
• SW Section
Setting:
BAND switch: SW
FINE TUNE control: mechanical mid
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 CT2
64 MHz 109.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
64 MHz 109.5 MHz
FM IF ADJUSTMENT
T1
10.7 MHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-1 CT3
620 kHz 1,400 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L8 CT4
520 kHz 1,680 kHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
455 kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 CT8
145 kHz 300 kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3-2 CT7
160 kHz 260 kHz
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L6 CT6
5.8 MHz 18.4 MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L5 CT5
5.9 MHz 18.2 MHz
Adjustment Location: See page 10.
FM RF signal
generator
telescopic antenna
input
set
0.01
µ
F
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
30% amplitude
modulation by 400 Hz signal
output level : as low as possible
AM RF signal
generator
telescopic antenna
input
set
11 PF
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
• Remove telescopic antenna in FM section adjustments.
2
jack (J301)
set
32 Ω
level meter
(range: 0.5 – 5 V ac)