Pioneer PDR-W839 Service Manual page 76

PDR-W839
<Pickup replacement repair, the final check inspection method after adjustment>
Disk required:
CD-R disc
* [STD-R07(PVC:RDD-74B,RDD-74BJ)]
[STD-R08(PVC:RDD-74,RDD-74U)]
or equivalent
CD-RW disc
* [STD-R11(PVC:RDW-74,RDW-74J)]
or equivalent
[Inspection items]
1. Recording-playback jitter
Method: Measure RF signal (CN102-pin2) by Jitter Meter (Trailing edge).
Specification: 35nS or below.
2. Recording-playback block error
Method: While pushing "CD-R CONTROL" side "DISPLAY" key, press "REC MODE" key.
Display: appears in about 4 sec like
Specification: 65 pieces or less
(Press "STOP" key to reset display)
3. Recording-playback ATIP error
Method: While pushing "CD-R CONTROL" side "DISPLAY" key, press "AUTO SPACE" key.
Display: appears in about 10 sec like
The three digits on the left = Total number of errors
The three digits on the right = Maximum continuous error number (Specification item)
Specification: Max continuous error (Right side datum) must be 7 pieces or less.
(Press "STOP" key to reset display)
[Warning]
Scratch, dust, fingerprint, etc. on recording disc may cause deterioration of performance. Take care of the discs.
When CD-RW disc is used for measurement, do not use the same position at more than 100 times.
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C1 * * * * *
ATIP * * * * * *