Pioneer PD-J500T Service Manual page 22

2. Grating adjustment
@ Symptom when out of
adjustment
@ Measurement instrument
connections
Connect the oscilloscope to TP1, Pin
2 (TRK ERR) via a low pass filter.
(See Figure 2)
@ Player state
Test mode, focus and spindle
servos closed and tracking servo
open
[Settings] 50 mVidivision
5 ms/division
DC mode
12 cm disc.
(YEDS-7 can not be used.)
[Procedure]
2 PIN
(TRK ERR)
Figure 2
Adjustment Locations
29