XV-DVR9H
104
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• Subscreen 2: Result of error-rate measurement
Note:
Be sure to start playback after displaying this subscreen
to calculate the error rate.
5000mV
↑
Tuning is off toward lower frequency
↑
2400mV
↑
1900mV Just Tune
↓
1400mV
↓
Tuning is off toward higher frequency
↓
0mV
1) AFT voltage (AFT VOL)
How much tuning is off is monitored, as shown below:
2) AGC voltage (AGC VOL)
The gain controlled by the tuner is monitored to infer the input electric field intensity.
(The accuracy of inference differs depending on the product.)
Field Intensity
AGC VOL
Intense field area
(Clear image)
Less intense field area
(Noise may be generated.)
Weak field area
(Much noise. EPG/VPS/PDC sometimes cannot be
obtained.)
Very weak field area
(Image damaged. EPG/VPS/PDC cannot be
obtained.)
70 dB
µ
or more
2700 mV or less
50 dB
µ
or more
70 dB
µ
or less
2700mV - 4300mV
30 dB
µ
or more
50 dB
µ
or less
4300mV or more
Distinction is impossible at
weak field or less.
30 dB
µ
or less
4300 mV or more
Tips:
For good reception, the field intensity must be 50 dB
µ
or more (AGC VOL 3100 mV or more).
For accurate measurement, use a field intensity meter.
• Subscreen 3: HDD information
Cumulative HDD-on time
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QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299