Model 5601MSC
Model 5601MSC Master SPG/Master Clock System
TECHNICAL DESCRIPTION
Revision 2.2
Page - 177
5.3.3.2.3.
GPS Receiver is not Detecting Enough Satellites
1. The number one cause of poor GPS satellite reception is caused by a bad mounting location for
the antenna. See section 3.5.1 for mounting recommendations.
2. At any time there should be at least four satellites in the sky with the usual number being 8
satellites. The GPS receiver however, rejects satellite signals that may introduce error into the
timing calculations. Satellites that are at too low of an elevation (<10º) are ignored. Satellites
that have a poor Signal-to-Noise ratio are also rejected. The mounting location of the antenna
must provide the clearest, and widest view of the sky with no large structures nearby that may
cause multipath interference (reflections) and no high power transmitters nearby.
3. During poor weather conditions the number of acceptable satellite signals may decrease. This
can be exacerbated by a poor mounting location. During severe weather conditions it is normal
for the number to decrease. If the number of satellites falls below three in fair conditions such as
overcast skies or slight drizzle then the mounting location should be reviewed.
5.3.3.3. Front Panel Issues
5.3.3.3.1.
Front Panel Inoperable
The front panel menu system is not working, but the panel otherwise appears to be powered up with
LCD displays working
1. Check and make sure the front panel is not locked. This is usually indicated by the
PANEL
LOCK
button being illuminated. When the front panel is locked, only the STATUS menu will be
functional. In order to unlock the panel, hold down the
SELECT
button while pressing the
PANEL LOCK
button (see section 4.1.3).
5.3.3.3.2.
The LCD Displays are not Working or the Buttons are not Illuminating When Pressed
1. Check that the front panel has been securely attached to the unit. It must be pushed in
completely so that the top and bottom copper gaskets are no longer visible. If the panel is
attached properly but still not working, a panel reset can be performed by pressing the
PANEL
LOCK
and
HELP
buttons simultaneously.
5.3.3.3.3.
Cannot Access Some Menu Items (Greyed Out)
1. Menu items will be displayed in dark text to indicate they are not accessible. There are several
reasons why a menu item might be disabled. For example, if a sync output has been set to
output tri-level sync, the VITC timecode related menu items will be disabled to show they are not
applicable in the current sync output mode (VITC cannot be inserted into HD tri-level sync).
2. It is also possible that a menu item has been restricted. Refer to section 4.5.9.4 for information
on menu restrictions. The menu restrictions are configured through the password-protected
engineering menu.
5.3.3.3.4.
Incorrect Password for Engineering Menu
1. The Engineering Menu located off the
GENERAL
root menu is protected by a numerical
password. The default password is
5601
. The password can be changed to any user defined
number from 1 digit to 9 digits long.
2. If the password has been set accidentally to an unknown value, try entering
0
. If that does not
work, contact Evertz customer support for a password recovery procedure.
