Pioneer BDP-62FD Service Manual page 30

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4. [8] PDXY Check
For PDXY Check, the misalignment of pick-up optical axis can be checked.
A
The optical axis misalignments of X-axis and Y-axis are displayed [PDX] and [PDY] with %,
respectively.
All of CD, DVD, and BD can be measured.
The method for calculating PDX and PDY is shown below.
PDX = ((A+B)-(C+D)) / (A+B+C+D)
PDY = ((A+D)-(B+C)) / (A+B+C+D)
B
[ Instructions ]
1
Insert a disc (BD, DVD, CD) in a nomal mode. If the playback starts, pause it.
Display the home menu and enter into the Service Mode.
In this mode, the measurement can be carried out at an arbitrary place. After a disc is inserted, play and
stop the point you want to measure, and then enter into the Service Mode.
(The pick-up position does not return even in this status. The measurement at the place is available.)
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C
Select "[8] PDXY Check" with the
3
After the measurement is started and completed, the measurement value is displayed. If the value is
within the reference value, "Pass" is displayed.
D
[Effective indications]
Defect related to playback (block noise, sound jumping, image jumping, disc is paused, freeze of screen etc.)
E
If an NG is generated in a specific disc only, the defect is likely to be caused by the disc. If an NG is
generated in other discs too, the defect is likely to be caused by the pick-up part. If the measurement value
is very close to 40% even if an NG is not generated, the NG is likely to be caused by the disc.
F
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
key from the Service Mode screen, and press the [ENTER] key.
BDP-62FD
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