Tuner Section - Sony CSD-TD10 Service Manual

CSD-TD10/TD30

TUNER SECTION

• FM Section
Setting:
BAND button: FM
FM RF signal
generator
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
• AM Section
Setting:
BAND button: AM
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
• Connecting Level Meter (FM and AM)
set
Speaker terminal
• Connecting Digital Voltmeter (FM and AM)
100 k Ω
(VT)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
14
FM ROD ANT
0.01 µ F
set
Put the lead-wire
antenna close to
the set.
level meter
(range: 0.5–5 V ac)
8 Ω
digital
voltmeter
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
Reading on Digital voltmeter
Adjustment Part
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L102
88 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
Reading on Digital voltmeter
Adjustment Part
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L103
600 kHz
Adjustment Location: See page 15.
87.5 MHz 108 MHz
2.3 ± 0.2 V 7.0 ± 0.2 V
L108 <confirmation>
<confirmation>
108 MHz
L106
530 kHz 1,602 kHz
1.0 ± 0.2 V 6.7 ± 0.2 V
L101 <confirmation>
TC101
1,400 kHz