MSA DR-209M - Page 41

Universal digital repeater
DR-209M
Page 41
Table 30 – The list of possible malfunctions and troubleshooting
Malfunction
Possible reasons
To be done
No image on the screen
No voltage supplied from
the power source
Check power cable connection to the
Product, provide the voltage
Fuse malfunction
Check the fuse and replace if neces-
sary
Low image brightness
Adjust screen backlight brightness
No data is displayed
No connection with signal
source
Check the data reception from the
source («Rx» tab page)
Check the cable integrity and RS-422
connector pins
Spots on the screen
Lack of pixels
Bright pixels
Screen has outside dirt
Switch off the power and then switch
it on
Remove dirt
Constantly absent pixel may be a nat-
ural defect which occurs while oper-
ation
Image is too pale or too
bright
Wrong settings of backlight
brightness
Adjust backlight brightness