Lenovo C27-30 User Manual

Chapt
er 3 Reference information 3-3
Table3-2.Troubleshooting (continued)
Problem Possible cause Suggested action Reference
Screen is blank
and power
indicator is steady
amber or flashing
White
The monitor is in
Standby/Suspend
mode
● Press any key on the
keyboard or move the
mouse to restore operation.
● Check the Power options
settings on your computer.
“Understanding power
management” on page
2-9
The power
indicator is White,
but there is no
image.
The video signal
cable is loose or
disconnected from
the system or
monitor.
Be sure the video cable is
connected with the system
properly.
“
Connecting and turning
on your monitor” on
page 1-3
The monitor
brightness and
contrast are at the
lowest setting.
Adjust the brightness and
contrast setting on the OSD
menu.
“Adjusting your monitor
image” on page 2-6
One or more of
the pixels appear
discoloured
This is a characteristic
of the LCD
technology and is not
an LCD defect.
If there are more than five
pixels missing, contact the
Customer Support Centre.
Appendix A, “Service
and Support,” on page
A-1
● Fuzzy lines in
text or a blurry
image.
● Horizontal or
vertical lines
through the
image.
● Image setup has not
been optimized
● Your system
Display Properties
setting have not
been optimized.
Adjust the resolution settings
on your system to match the
native resolution for this
monitor: 1920x1080 at 60 Hz.
“Adjusting your monitor
image” on page 2-6
“Manual image setup”
on page 3-4
Perform automatic image
setup. If automatic image
setup does not help, perform
manual image setup.
“Selecting a supported
display mode” on page
2-9
When working in the native
resolution, you may find
additional improvements by
adjusting the Dots Per Inch
(DPI) setting on your system.
See the Advanced section
of your system’s display
properties.
The image is not
acceptable when
switching to dual
mode
It has not set the
optimum resolution
for each mode
● Use ThinkVision Duo
software to optimize the
dual screen operation
● Adjust graphic card
resolution manually
“Using the direct access
controls” on page 2-6

Lenovo C27-30 Specifications

General

Panel type	VA
Color depth	8 bit
Pixel pitch	0.3114 x 0.3114 mm
Screen shape	Flat
Pixel density	82 ppi
Response time	6 ms
Backlight type	W-LED
Display diagonal	27 \
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	75 Hz
Response time (fast)	4 ms
NTSC coverage (typical)	72 %
Viewable size, vertical	336.31 mm
Contrast ratio (dynamic)	3000000:1
Contrast ratio (typical)	3000:1
Display number of colors	16.78 million colors
Viewable size, horizontal	597.89 mm
Display brightness (typical)	250 cd/m²
AMD FreeSync	Yes
NVIDIA G-SYNC	-
AMD FreeSync type	FreeSync
Color name	Raven Black
Product color	Black
Market positioning	Business
HDMI version	1.4
DisplayPorts quantity	0
Headphone connectivity	3.5 mm
Tilt angle range	-5 - 22 °
Cable lock slot type	Kensington
Number of OSD languages	8
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 240 V
Power supply type	Internal
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	33 W
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (typical)	22 W
Cables included	AC, HDMI
HDMI cable length	1.8 m
Package type	Box
Package depth	179 mm
Package width	717 mm
Package height	453 mm
Package weight	6620 g

Weight and Dimensions

Bezel width (side)	1.8 mm
Depth (with stand)	231.2 mm
Height (with stand)	444.4 mm
Weight (with stand)	4750 g
Bezel width (bottom)	28.1 mm
Depth (without stand)	43.7 mm
Width (without stand)	614.1 mm
Height (without stand)	374.5 mm
Weight (without stand)	4040 g