Pioneer LaserVision LD-V4200 Service Manual page 21

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10.16 8-, 12-INCH OUTSIDE POSITION
DETECTION ADJUSTMENT
Note: Perform this adjustment after completing the VR8
adjustment.
1) 12-inch (VR9)
1. Search frame
#
46,500 in the test mode.
2. Adjust VR9 so that an asterisk (*) appears to the right of
the frame no. display on the screen.
2) 8-inch (VR10)
1. Load the 8-inch test disc.
2. Search frame
#
19,500 in the test mode.
3. Adjust VRl0 so that an asterisk(*) appears to the right of
the frame no. display on the screen.
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10.17 OTHER ADJUSTMENTS
Disc Clamp Switch Position Adjustment
When the disc clamp switch cannot be depressed even though
the disc is clamped, the disc table will be ejected immediately.
In such cases, try adjusting the switch position as described
below.
The disc clamp switch is on the left side of the front panel.
1. Remove the bonnet.
2. Insert a screwdriver into the adjustment slit and increase the
height of the switch by turning very slightly clockwise.
(Fig. 10-13)
3. Push in the disc table with a disc loaded and check whether
or not the disc rotates normally.
Fig. 10-13 Disc clamp switch position adjustment