Dynascan DS421LT4 User Manual

DS421LT4 User Manual 28
Troubleshooting
ISSUE
RECOMMENDED SOLUTION
No image is displayed.
⚫ Check whether the DVI in cable is completely plugged in.
⚫ Check whether the main switch is in the ON position, and the
power cord is completely plugged in.
⚫ Check whether the image source’s resolution is set to 1920 
1080 (1080p).
⚫ Check whether the DVI cable is damaged or bent excessively.
Nothing happens when
switching the main switch on.
⚫ Unplug the power cord from the socket and plug it in again
after a few seconds to reset the Signage.
Note: Unplugging the power cord will not change the settings.
Image is unstable.
⚫ Check whether the DVI in cable is completely plugged in.
The remote control does not
work.
⚫ Check whether there are batteries in the remote control.
⚫ Check the batteries for freshness, polarity, etc.
⚫ Check whether the remote is in the operation range.
⚫ Bright light may interfere with the remote control. Please
avoid using the remote control near special fluorescent lights
or neon lights.
Auto on/off does not work or
does not function properly.
⚫ Check whether the TIMER setting in the menu is set to “OFF”.
⚫ Check whether the “Power On Time” and “Power Off Time”
settings are set correctly.
Cannot control the display
remotely via RS-232.
⚫ Check whether the RS-232 cable is connected properly.
If you are still having trouble with your DynaScan DS² Professional LCD, contact your dealer or
DynaScan directly for more assistance.

Dynascan DS421LT4 Specifications

General

Brand	Dynascan
Model	DS421LT4
Category	Monitor
Language	English