Pioneer BDP-05FD - Elite Blu-Ray Disc Player, Service Manual

Page: 36 / 127

36
BDP-05FD
1 2 3 4
A
B
C
D
E
F
1 2 3 4
Flowchart of DVD Error Rate Measurement (with OK/NG judgment)
Specifications 1 for Error Rate Measurement (with OK/NG judgment)
To measure the error rate for a certain duration, press the ESC then SIDE-B keys only during playback. The result of judgment
(OK/NG) will be displayed on the FL display and as an OSD.
To exit Error Rate Measurement mode, press the ESC key while the error rate is being measured.
After exiting Error Rate Measurement mode, if the ESC then SIDE-B keys are pressed again to reenter Error Rate Measure-
ment mode, measurement of the error rate will start from the beginning.
The error rate is measured for up to 5 sessions, and the displayed result is updated after measurement for each session is
performed.
At the end of 5 sessions, the average error rate for the entire measurement range will be displayed. If measurement sessions
are interrupted before 5 sessions, the average error rate up to the point of interruption will be calculated and displayed.
A result will be judged as NG if the measured error rate exceeded the reference value. See "OK/NG judgment" below.
(Only when the average error rate is judged as NG, the tray will be opened.)
Operation Specifications
The following specifications must be met:
• When calculating an error rate, the denominator groups will be considered as shown below:
For DVD: 28-32 ECCs (448-512 sectors)
For BD: 95-105 clusters (3040-3360 sectors)
Then the measurement result will be displayed.
• For calculation of result judgment, the values of the above denominator groups will be multiplied by 5.
The measurement result along with the judgment result will be displayed.
• During error rate measurement, there should not be any video or audio problem (stuttering block noise, jumpiness, etc.)
in the playback signal.
• Data to be measured must be basically continuous.
Start (during playback)
The "Read command" is issued.
Transfer Length = 20h = 2 [ECC]
The "Recorder Command" is issued.
(Read Error Information)
Error data are obtained.
Pi1 = Number of ErrNumPi1
Pi1L = Number of UePiLine1
Total ECC =
30 [ECC]
Total ECC = 0
Total Pi1 = 0
Total Pi1L = 0
Yes
No
Total Pi1 = Total Pi1 + Pi1
Total Pi1L = Total Pi1L + Pi1L
Total ECC = Total ECC + 2
Error Rate
= ( Total Pi1 + Total Pi1L * 6 )
/ ( 30 [ECC] * 33024 )
The error rate is displayed on the screen.
ALL ECC = 0
ALL Pi1 = 0
ALL Pi1L = 0
ALL ECC =
150 [ECC]
ALL Pi1 = ALL Pi1 + Total Pi1
ALL Pi1L = ALL Pi1L + Total Pi1L
ALL ECC = ALL ECC + Total ECC
Error Rate
= ( ALL Pi1 + ALL Pi1L * 6 )
/ ( 150 [ECC] * 33024 )
Judgment
Error Rate 1.00E-3 OK
Error Rate < 1.00E-3 NG
The error rate and judgment
result are displayed.
Finished
(during playback)
Use the following flowchart just as a guide.
No
Yes