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Error 70 - Monitor not allocated to alarm monitor group
This monitor can not be used for alarm operations; it has not
been designated as alarm-capable by the system programmer.
Error 71 - Step monitor required
A group of alarm monitors may not have an armed Review
(display) monitor without having armed Step (sequence)
monitors.
Error 78 - Must enter alarm number
A specific alarm number must be entered when arming or
disarming an alarm.
Error 80 - Trunk not available
An attempt was made to access a remote camera connected to a
satellite system, but no unused trunk lines are currently available.
Error 89 - internal stack error
A stack overflow within the system has occurred. Report this to
the manufacturer.
Error 90 - Keyboard entry undefined
The keyboard entry is not defined. Check the appropriate section
of the instruction manual for the desired operation and try again.
Error 92 - Keyboard entry out of range
The data entered for a valid command was not in the range
allowed by the system. Check the appropriate section of the
instruction manual for the acceptable ranges for the command in
question and try again.
Error 94 - Keyboard entry invalid
An invalid character has been received from the keyboard. Usually
this would indicate a communications error. Verify that the
keyboard-to-system cable is not producing an intermittent
connection.
Error 95 - Keyboard entry incomplete
The control sequence sent from the keyboard was incomplete.
Usually this would indicate a communications error. Verify that
the keyboard-to-system cable is not producing an intermittent
connection.
Error 96 - * (STAR) undefined
The * key has been pressed, but there is no definition for this
button.
21
TROUBLESHOOTING GUIDE
The LTC 8000 Series Allegiant system has been designed to
perform reliably for long periods of time. All circuitry consists of
state-of-the-art components designed around a single bay concept.
If system troubleshooting becomes necessary, follow the
guidelines:
21.1 System Checkout
1.
Front panel power LED indicator is not lit: Check main AC
supply source.
2.
Green STATUS LED indicator on front panel is not
blinking and BATTERY LED is off: Remove power from
unit for 30 seconds. Apply power and verify STATUS LED
is blinking. If not, replace microprocessor module.
If red BATTERY LED is lit, replace microprocessor board
batteries. Follow procedure outlined in Maintenance
Information section.
21.2 Keyboard Checkout
1.
No keyboard display indicators: Check interconnect cable for
cut or broken wires between keyboard and main bay.
Replace cable if necessary. Relocate keyboard connector on
the bay to another keyboard input port. Replace keyboard.
2.
Keyboard indicators lit but keyboard is inoperative: Verify
keyboard is logged-on to the system (if log-on feature has
been enabled). Check interconnect cable for cut or broken
wires between keyboard and main bay. Replace cable if
necessary. Relocate keyboard connector on the bay to
another keyboard input port. Replace keyboard.
3.
Limited keyboard functions: If possible, perform local
keyboard test described in USER Function section to verify
operation of all keys. If local test cannot be performed,
replace keyboard.
Users of the LTC 8059/00 Master Control Software for
Windows package or the LTC 8850/00 Graphical User
Interface software package should refer to lockout tables to
determine if problem is related to user restriction tables. If
table settings are verified and no discrepancies are found,
replace keyboard.
4.
LTC 8552/00, LTC 8553/00 or LTC 8555/00 keyboard
Joystick not centered: If the analog joystick of the
LTC 8552/00, LTC 8553/00 or LTC 8555/00 becomes
un-centered due to normal wear, it can be re-calibrated by
entering the Keyboard User Function 1 keyboard test. Refer
to the appropriate section of the manual on Keyboard User
Functions for more information.
21.3 Video Monitor Display Checkout
1.
No video display on any monitor: Verify proper CPU
operation as described above under system checkout section.
2.
No video display on some monitors: Verify operational
camera is selected on suspect monitors. Confirm monitor is
operational. Check monitor coax connections. Verify coax
connection to correct monitor output on rear of the bay.
Replace video output module.
54
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