Sega Magical Truck Adventure, Owner'S Manual

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9. PROJECTOR
Since the projector screen is susceptible to damage, pay careful atten-
tion to its handling. When cleaning, freain from using water or volatile
chemicals.
Since the Projector has been adjusted at the time of shipment, avoid
making further adjustments without good reason.
Fine adjustments are stored inthe Projector. Pressing the Fine Adjustment SW (Convergence Adjust-
ment) results in entering the Fine Adjustment mode, and this may cause the stored fine adjustment to
be changed. During work other than for adjustment, should you touch the Fine Adjustment SW by
mistake, immediatley tren power off by using the main SW and then turn it back on again. If any
distortion or color deviation is found in the test mode and adjustments are needed, use the specified
Adjustment Knob, or perform the adjustment by remote control. Note that there are two PROJEC-
TOR makes (HITACHI and MITSUBISHI) and the adjustment method is different between the two.
When checking the Adjustment Control Knob, remove the PTV’s service door. For the HITACHI
PROJECTOR, open the cover in front of the control panel. For the MITSUBISHI PROJECTOR,
remove the cover.
The Projector is subject to color deviation due to Convergence devia-
tion caused by the geomagnitism at the installation location and
peripheral magnetic field. After the installation of machine, and be-
fore commencing operation, check for Convergence deviation and if
deviated, make adjustments.
9 - 1 CLEANING THE SCREEN
When the screen surface
becomes dirty with dust, etc..,
clean it by using a soft cloth
such as gauze. When water and
volatile chemicals such as
benzene and thinnerspill onto
the screen surface, it may be
subject to damage, therefore,
do not use them. Also, since the
surfaces are susceptible to
damage, refrain from rubbing
with a hard material or using a
duster.