Panasonic DVD-RV26 Service Manual page 37

10.4.1.3. Check after adjustment
Play test disc or any other disc to make sure there is no picture degradation in the inner, middle and
outer peripheries, and no audio skipping. After adjustment is finished, lock each adjustment screw in
position using screw lock.
10.4.1.4. Procedure for screw lock
1. After adjustment, remove top cover, tray, clamper base and traverse
unit in this sequence.
2. Lay the traverse unit upside down, and fix adjustment screw with
screw lock.
3. After fixing, reassemble traverse unit, clamper base, tray and top
cover.
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