Maintenance - Videotec SM84A Manuel D'instructions

When viewing an
input, the image is
completely black or
white, but the
identification text
appears.
The video image is
displayed correctly,
but without
identification text
The identification
texts are displayed
too high or too low
During OSM
programming the lines
are compressed and
half the screen
appears distorted.
The alarms do not
trigger
The keyboard does
not reset the alarms
There is no buzzer
when the alarm
triggers
7 Maintenan ce
The SM84A / SM164A matrix requires no particular maintenance. We recommend its use on a solid base,
with the power supply and connection cables arranged so as not to get in the way of the operator.
Badly adjusted camera
iris
Error in text setting
Error in video code
configuration
Error in OSM Video
setting
Alarm contact not used
Error in alarms setting
The alarm contact
setting cannot be reset
by the keyboard.
Alarm buzzer disabled
Page 30
Try and adjust the camera iris until a clear image
appears.
Check the identification text menu to see if there is
actually a text setting for the input on display.
Enter the menu to check the video code setting: PAL
or NTSC. If the PAL system is used, an error setting
in NTSC will shift the identification texts. Vice versa,
if an NTSC system is used, an error setting in PAL
will cause the identification texts to be lowered.
Some types of monitor have problems with non-
interlaced video signals. Set Interlaced: YES. In any
case this setting has no effect during normal matrix
operation.
Make sure the Type of alarm is not: Not Used (set
the alarm to N.O. or N.C.)
For the alarm NO setting, make sure that, when there
is an alarm, the alarm pin closes with the common
alarm pin. And for the alarm N.C. setting, make sure
that the alarm causes the common alarm and
specific alarm pins to open.
Change the alarm or alarm settings in question by
entering the menu item: Reset / Keyboard: YES.
Go to the Alarms menu and modify each individual
alarm that is to trigger the Buzzer (item Enable
Buzzer: YES). The same holds for the alarm relay
(item Enable relay: YES).
MNVCSM84A_0408