Specifications

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 75
GROUP 4—EVENT LOG
Event Log
This screen shows the events logged on the active transceiver board. In many
cases, the events leading up to a failure can be reviewed to help determine the
cause of a problem. The event log number, date and time of the event, and a
description of the event are shown.
Press ENTER to review the event log. The most recent log will be shown rst. Use
the up/down arrow buttons to scroll through the stored history of events.
Clear Logs This screen is used to erase all events from the event log.
7.0 LOCAL & NETWORK-WIDE
PROBLEM SOLVING
The majority of radio system problems are due to the failure of compo-
nents outside of the transceiver—such as a poor or broken feedline or
antenna connection. This section will help you determine whether the
problem is outside or inside the radio; and, if in the radio, how to restore
operation as quickly as possible.
MDS does not recommend component-level repairs in the field. How-
ever, the radio’s major assemblies may be replaced without using tools
or test equipment. Section 8.0, REPLACING ASSEMBLIES, beginning
on Page 82 covers this in detail.
If you are unable to solve a system problem with the information pro-
vided here, technical assistance is also available from the factory. Refer
to the inside back cover of this guide for contact information.
NOTE: Before starting any detailed troubleshooting, check the basic
requirements at both ends of the link: primary power, secure
cable connections, and proper antenna heading. In many cases,
one of these things may be at fault and cause poor operation or
a complete loss of link service.
LL
LL
oo
oo
gg
gg
11
11
oo
oo
ff
ff
11
11
55
55
//
//
11
11
//
//
11
11
99
99
99
99
88
88
11
11
22
22
::
::
00
00
00
00
;;
;;
00
00
00
00
SS
SS
yy
yy
ss
ss
tt
tt
ee
ee
mm
mm
BB
BB
oo
oo
oo
oo
tt
tt
LOG [CLR] command, Page 4
4
CC
CC
ll
ll
ee
ee
aa
aa
rr
rr
LL
LL
oo
oo
gg
gg
ss
ss
AA
AA
rr
rr
ee
ee
yy
yy
oo
oo
uu
uu
ss
ss
uu
uu
rr
rr
ee
ee
??
??
NN
NN
oo
oo
LOG [CLR] command, Page 4
4