Adjustment Procedures; Focus Offset Adjustment; Tracking Offset Adjustment - Onkyo DX-710 Service Manual

ADJUSTMENT PROCEDURES
Instruments required
and Socket P4(Part no. 25050138)
1. Focus offset adjustment
(Jitter meter)
Oscilloscope
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Ske 2 ew ey
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2 ok te
Photo 1
2. Tracking offset adjustment
Load the test disc YEDS-18 on the tray and play the track 2.
Turn R116 to minimum position.(Counter clockwise)
Connect the oscilloscope between pin 3 (TR) of P107 and
pin 2 (GND) of P106.
Adjust R108 until the center of tracking error signal on
the oscilloscope becomes GND level.
Turn R116 to the mechanical center.
After adjustment, disconnect the oscilloscope.
P107
TR
P106
GND
-18-
Oscilloscope range
Vertical : 0.5V/div.
Holizontal : 0.2 ps/div.
DC, Ground: Center
Oscilloscope
Vertical : 500m V/div.
Holizental : 1 ms/div.
DC, Ground: Center