horizontal oscillation mode. The two-line oscillation automatically
shoots to two preset locations allowing a user to practice alternating
forehand and backhand shots. 2-line width can be defined by w1-w2
setting as described in section of “w1-w2”.
After the machine has been set to the 2-line oscillation mode, the user
can still press vertical oscillation to make the machine set to a 2-LINE
HORIZONTAL AND VERTICAL OSCILLATION.
VERTICAL: Pressing the VERTICAL button will set the machine to a
vertical oscillation mode. The vertical oscillation mode will allow for a
combination of high balls and low balls. The machine will shoot balls at
2 height levels defined by h1 and h2.
If machine has been in the random horizontal oscillation mode,
pressing this button will set the machine to RANDOM HORIZONTAL
AND VERTICAL OSCILLATION mode. If the machine has been in
2-line oscillation mode, pressing this button will set the machine to a
2-LINE HORIZONTAL AND RANDOM VERTICAL OSCILLATION
mode.
MANUAL: Pressing the MANUAL button will set machine back to
manual mode without oscillations. This is also a default setting after
power on or reset.
Notes:
1. When the user needs to switch between different oscillations
modes, it can be through the “SWEEP SETTING” buttons directly.
In most cases, it is not a problem. However, because the machine
could still be running during switching, the internal logic can work
improperly by such direct switching. If this happens, the user can
just turn off and then turn the machine on again to reset all the
logics.
2. In the 3 types of vertical modes, the machine will shoot balls at 2
height levels. In the low height level defined by h1, the machine will
deliver a flat shot without any spin even though the user defined
spins. In the higher level defined by h2, the machine will be with
spin as defined. This is to simulate real games with flat shots
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