Pioneer DVR-533H-S Service Manual page 82

1
1) Frequency Difference (Freg Diff)
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.)
Weak field area
(Much noise. EPG/VPS/PDC sometimes cannot be
obtained.)
C
Very weak field area
(Image damaged. EPG/VPS/PDC cannot be obtained.)
Tips:
For good reception, the field intensity must be 50 dBµ or more (AGC Volt 3100 mV or more).
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 next page.
[Tips]
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.
F
82
1
2
Display
High
Center
Low 1
Low 2
70 dBµ or more
50 dBµ or more
70 dBµ or less
30 dBµ or more
50 dBµ or less
30 dBµ or less
DVR-533H-S
2
3
Field Intensity AGC Volt
3300 mV or more
3100 - 3300mV
2600 - 3100mV
2600 mV or less
ERR RATE : ∗.∗e-∗
Subscreen 2
3
4
4