LG ProBeam BU70QGA 7000-Lumen 4K Laser SmProjector - Manual (Page 48)

48
ENGLISH
Symptoms Causes and Solutions
I see dots on the
screen.
• There is a colored dot (bright dots, dark dots, stationary
dots, and/or flickering dots) on the screen.
— This projector was produced with high precision
technology. However, a tiny dark or bright dot may
appear on the screen. This is a common occurrence
due to the production process, and it does not
indicate a functional failure.
※ Bright spot: brightly lit dots, Dark spot: invisible or blurred
point of text or objects, Blinking: flashing dots, Bright dot:
glowing dots that are brighter than regular images
I hear a noise. • Electrical noise : this is a small sound generated from
the operation of the high-speed switching circuit that
supplies current to the projector, and the noise may
vary depending on the product. This noise is normal and
does not affect the projector’s functions. LG Electronics
manages the manufacturing of projectors according to
strict standards. A fixed level of noise does not indicate
a problem. Please understand that this does not allow
you to get an exchange or refund.
• Fan sound : to maintain the temperature inside the
projector at an appropriate level, the fan sound may
increase or decrease depending on the ambient
temperature.