Pioneer DVR-543H-S Service Manual page 84

1
1) Frequency Difference (Freg Diff)
QQ
3 7 63 1515 0
How much tuning is off is monitored, as shown below:
Input Frequency
A
High
Just Tune
Low
2) AGC voltage (AGC Volt)
The gain controlled by the tuner is monitored to infer the input electric field intensity.
B
(The accuracy of inference differs depending on the product.)
Intense field area
(Clear image)
Less intense field area
(Noise may be generated.)
Very weak field area
(Image damaged. EPG/VPS/PDC cannot be obtained.)
C
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L 13942296513
Tips:
For good reception, the field intensity must be 60 dBµ or more (AGC Volt 4600 mV or less).
For accurate measurement, use a field intensity meter.
D
(3) Simple Error Rate Measurement (Subscreen 2)
• While the User Operation screen is displayed, press the ESC then DISP keys, then the DIG/ANA
[How to enter]
key twice, in that order.
• While subscreen 1 of the first screen is displayed, press the DIG/ANA key.
[How to quit]
Press the ESC key.
[Measurement procedures]
1 Display subscreen 2.
E
2 Load the Test disc (GGV1025).
3 Judge the results of the error rate measurement by
referring to Table 1 on page 89.
[Tips]
www
During VR mode playback, the average value of the past 10 VOBUs is displayed. During DVD-Video or Video mode
playback, the average value of the past 256 sectors is displayed.
During VR mode playback, the speed ratio of the drive (/: normal, no indication: double speed) is also displayed.
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Display
High
Center
Low 1
Low 7
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DVR-640H-S
2
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8
Field Intensity
70 dBµ or more 3300 mV or less
60 dBµ or more
3300 - 4600mV
70 dBµ or less
4600 mV or more
60 dBµ or less
Q Q
3 6 7 1 3
ERR RATE : ∗.∗e-∗
Subscreen 2
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3
4
2 9 9 4 2 8
AGC VOL
1 5 0 5 8 2 9 9 4
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4
9 9
2 8 9 9