Instructions for use DIAGNOdent display 2191
8 Troubleshooting
27 / 32
8 Troubleshooting
Malfunction
Cause
Remedy
The device cannot be turned
on.
No power.
4
Insert the batteries correctly.
4
Insert new batteries.
Display indication:
Symbol: battery flat.
Batteries are dead.
4
Insert new batteries.
No display indication.
Long tone after the start tone.
Display is defective.
4
Send the device to KaVo for repair.
Display indication:
Oled: error
The data transmission to
the display is flawed.
4
If this error occurs repeatedly, send the
device to KaVo for repair.
Display indication:
Flashmemory: error
Program memory mal-
function.
4
If this error occurs repeatedly, send the
device to KaVo for repair.
Display indication:
EEprom: error
Data memory malfunc-
tion.
4
If this error occurs repeatedly, send the
device to KaVo for repair.
No display of the data from
the DIAGNOdent pen 2190.
Infrared transmission is
switched off.
4
Wait until the DIAGNOdent pen 2190 is in
display mode or specifically leave the
menu item.
DIAGNOdent pen 2190 is
not in display mode
(e.g., a menu item has
been selected).
NOTE
Malfunction caused by the infrared data transmission.
Since the data is transmitted to the DIAGNOdent display 2191 by infrared
light, external influences can cause malfunctions. Fluorescent lights can gen-
erate a similar signal that reduces the range. This greatly depends on the
type of fluorescent lamps, and also the ballast.
Observe the following points:
4
If possible, do not expose the receiver to direct illumination from fluorescent
lights or strong light sources.
4
Fluorescent lamps generate a great deal of interference radiation in the first
10 minutes after they are switched on. Wait for 10 minutes.
4
Approximately align the DIAGNOdent display 2191 with the
DIAGNOdent pen 2190.
4
Depending on the distance, there should be a direct line of sight between
the two devices.
4
Switch off other infrared transmitters (such as a laptop with IrDA).
4
Ensure that the distance between the two devices is not too great.
4
The antenna symbol will tell you if malfunctions have arisen.
Also refer to:
5.5 Battery charge display, Page 22
4
If the interference is too great, switch off the sources of the disturbance
(fluorescent lights, IrDA, etc.).
