Pioneer PD-Z84M Service Manual page 32

@ Adjustment location | VR102 (TRK BAL)
[Settings] 50 mV/division
5 ms/division
DC mode
[Procedure]
1. Move the pickup to midway across the disc (R = 35 mm) with the TRACK/MANUAL SEARCH FWD DU/ D> or
KKK key.
4, Adjust VR102 (TRK BAL) so that the positive amplitude and negative amplitude of the tracking error signal at
TP1 Pin 2 (TRK ERR) are the same (in other words, so that there is no DC component).
i: Tt
A
B B
1 L
When there is a DC When there is no DC
component component