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– 21 –
SD-AT100H
TUNER SECTION
Frequency
Display
Adjusting
Parts
Instrument
Connection
98 MHz
98 MHz
VR1
Input: FM Antenna
(26dB)
Terminal
(EFM)
Output: Headphones
Terminal
fL: Low-range frequency
fC: Middle-range frequency
fH: High-range frequency
fC: Middle-range frequency
fH: High-range frequency
• FM Mute Level
Signal generator: 400 Hz, 22.5 kHz, FM modulated
Signal generator: 400 Hz, 22.5 kHz, FM modulated
Turn the VR1 to set the volume to 26dB.
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.
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
Memory
Frequency
FM
Preset
Memory
Frequency
AM
P1
87.50 MHz
P6
522 kHz
P2
108 MHz
P7
1,620 kHz
P3
90.00 MHz
P8
603 kHz
P4
106.00 MHz
P9
1,404 kHz
P5
98.00 MHz
P10
990 kHz
Table 1 Memory setting
Electronic
Voltmeter
Voltmeter
GND
FM Signal
Oscillator
Oscillator
Set
Headphones
Terminal
FM Antenna
Terminal
Terminal
Figure 21-1
Figure 21-2
+
–
Set
AC 230 V
BIA110
Speaker
Output
Electronic
Volteter
VR : 0
Input : AUX
Input : AUX
VRA101
R-CH
Output Offset Adjust
R-CH
Output Offset Adjust
VRA100
L-CH
Output Offset Adjust
L-CH
Output Offset Adjust
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
speaker terminals + and - is set to 0
±
5 mV.
Figure 21-3
Figure 21-4
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.
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.
VR1
TUNER UNIT
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