Rosewill R700N - Manual (Page 15)

whether the display signal cable is properly connected.the loseness
of the pin within the plug of cable will lead to connective failure.
2. Connect the monitor to another PC.
SYNC. Problem With The Monitor
1. Check if the display input signal is within the specified range
(56~75Hz).
2. Connect display signal cable properly.
How To Clean The Monitor
1. Shut down the monitor
2. No liquid to be spread directly onto the screen or plastic case.
When You Clean The Screen
1. Please use clean, soft, non-fluffed cloth to wipe it.
2. Please add some glass-cleaning agent without ammonia and alcohol
to the clean, soft, non-fluffed cloth to wipe it if the previous phase
doesn't work.
When You Clean The Case
1. Please use soft, dry cloth.
2. Please add some neutral non-attrite cleaning agent without ammonia
and alacohol to the clean, soft, non-fluffed cloth to wipe the surface
if the previous phase doesn't work.