Samsung DVD-CM420 Service Manual page 13

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Alignment and Adjustments
2-2-2 Skew Adjustment
2-2-2(a) Adjustment Spec. and Test Point
◆ Test Disc ; Service not Available
<Table 2-2>
Test Disc Adjustment Spec. Test Point Adjustment Location
TDV-533 "ENV" Ass'y Deck - Bottom Side
Chapter 14 Flat Waveform (DVD Main PCB - Top Side) (See Fig. 2-6)
(See Fig. 2-5)
◆ SKEW (Tangential) : The shift on the Vertical axis of Spindle Motor movement.
◆ SKEW (Radial) : The shift on the Direction of the Spindle Motor movement.
A
T
R
B
Fig. 2-6 Ass'y Deck (Bottom Side)
Samsung Electronics 2-5