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TUNER SECTION
fL: Low-range frequency
fC: Middle-range frequency
fH: High-range frequency
• FM Mute Level
Signal generator: 400 Hz, 22.5 kHz, FM modulated
Frequency
Display
98 MHz
98 MHz
(26dB)
(EFM)
Turn the VR1 to set the volume to 26dB.
VR1
Figure 21-1
1-bit amplifier's output offset voltage adjustment
Adjust VRA100 and VRA101 so that the DC voltage between
speaker terminals + and - is set to 0 ± 5 mV.
AC 230 V
VR : 0
Input : AUX
Figure 21-3
VRA101
R-CH
Output Offset Adjust
VRA100
L-CH
Output Offset Adjust
Figure 21-4
Adjusting
Instrument
Parts
Connection
VR1
Input: FM Antenna
Terminal
Output: Headphones
Terminal
TUNER UNIT
Electronic
Volteter
Speaker
Output
Set
+
–
BIA110
TEST MODE
When the tuner test mode is set, the initial setting of frequencies
is stored in the preset memory as shown in Table 1. For
details, refer to "8. Tuner test" on page 27.
The frequencies registered by the user will be changed when
the above setting is performed.
Preset
Frequency
Memory
P1
P2
P3
P4
106.00 MHz
P5
Table 1 Memory setting
FM Signal
Oscillator
FM Antenna
Terminal
DVD/CD SECTION
• Adjustment
Since this DVD/CD system incorporates the following
automatic adjustment functions, readjustment is not needed
when replacing the pickup. Therefore, different PWBs and
pickups can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
– 21 –
SD-AT100H
Preset
FM
Memory
87.50 MHz
P6
108 MHz
P7
90.00 MHz
P8
P9
98.00 MHz
P10
Headphones
Terminal
Set
GND
Figure 21-2
Frequency
AM
522 kHz
1,620 kHz
603 kHz
1,404 kHz
990 kHz
Electronic
Voltmeter
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