Pioneer XV-BD122B, Service Manual

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XV-BD422B
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B
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1
Select "[7] Enter SP Mode" with the
b
key from the Service Mode screen, and press the [ENTER] key.
2
The SP Mode window menu will be displayed, so select "Start Up" and press the [ENTER] key.
3
The tray will automatically open and the dedicated screen will appear. Place the disc you wish to useon the tray,
and push it in manually. ([Close] key will not function)
4
tart Up mode will be initiated, and count will start. Implement 20,000 times (4E20 in hex), and if no errors occur,
"Pass" will appear.If errors do occur, they will be counted. Therefore, errors can be identified without finishing the
process.
1
Select "[7] Enter SP Mode" with the
b
key from the Service Mode screen, and press the [ENTER] key.
2
The SP Mode window menu will be displayed, so select either "Jitter Measure ""BLER Measure,"
and press the [ENTER] key.
3
The tray will automatically open and the dedicated screen will appear. Place the disc you wish to use on the tray,
and push it in manually. ([Close] key will not function)
4
The tray will reopen automatically. Measurement will start when you push the tray in manually.
5
When test is completed, "Pass" or "NG" is displayed.
3-1. Start Up
[ Content of test ]
Implements initial movement of the disc servo continuously. Implement the following process 20,000 cycles.
Measures the Jitter or the Block Error Rate (BLER) of the disc inserted.
Only Pass or NG will be displayed, not Measurement values.
All of CD, DVD, and BD can be judged.
[ Instructions ]
[ Effective indications ]
3-2. Jitter Measure / BLER Measure
[ Content of test ]
[ Instructions ]
[ Effective indications ]
• Tray sometimes does not open, discs sometimes are not recognized, discs sometime do not playback.
(When indications are related to discs, implment on the type of disc which has been pointed out.
If it is the disc on which the indications occurred, possibility of reoccurrence is higher.)
Defect related to playback. (blocked noise, sound jumping, image jumping, disc is paused, freeze of screen etc.)
However, even if Pass is displayed after this test, it is difficult to determine that the Driver is normal with these
Pass judgments only.
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 drive part.
.
Tray Close
l
.
Foucus ON
l
.
TOC Read
l
.
Tray Open
(1 cycle 15 seconds x 20000=completed in approx. 83 hours 20 minutes)
Can be implemented on all of CD, DVD, and BD. Cannot change disc during process.