System Troubleshooting Guide
System Troubleshooting Guide
This section provides guidelines for troubleshooting the Tek-CARE300III system. It covers general
troubleshooting practices, as well as specific suggestions for various problems.
As mentioned in System Installation on page 6, there are some general troubleshooting techniques that
installation personnel must follow during the installation of the system equipment.
NOTE: Installers must always exercise care when troubleshooting problems that might
involve high current or high voltage damage. Installers must also exercise extreme caution
and be aware of equipment or wiring that uses or handles high voltage, as these sources
are potentially lethal.
Do not connect the entire system together for the initial power up. Connect only the central equipment
and the first master station/VGA monitor for testing. Then connect the remaining master stations/VGA
monitors one at a time until all are connected and functional. This allows the installer to establish a
“known good” test point to work from, and to immediately identify problems as they are introduced to
the system.
Do not connect all patient station runs to the central equipment at one time. Connect individual runs to
the central equipment one by one until all are connected and functional. This allows the installer to
more easily locate and recognize the introduction of wiring or equipment problems in the field.
Direct Connection is a classic troubleshooting technique. If a problem is encountered, an installer may
directly connect a master station or a patient station to the central equipment. If the problem ceases, then
the source of trouble is located in the field (i.e., wiring or mounting related problems), whereas if the
problem remains, it is equipment based. This can also be applied to patient station peripheral devices,
which can be directly connected at the patient station location. While this is not an absolute test, it can
provide a strong indication of where to look when troubleshooting.
Swap Testing is another well-known method of problem identification. If a problem is identified, an
installer can interchange a known good piece of equipment into the location in question and move the
device having problems to the location that the known good device previously occupied.
WARNING: If a device or wiring indicates high current or high voltage damage, this
technique must be delayed until the source of the original problem is located. When
swap testing is performed, the system must be powered down during the actual swap-
ping process or damage may result. “Hot swapping” is highly discouraged.
As an example, a patient station in one room that demonstrates a problem can be “swapped” with a sta-
tion from another room that is known to be working acceptably. If the symptom follows the original
problem device, the problem is equipment based. If the problem remains in the original location, a field
problem is indicated (i.e., wiring or mounting related problems). This technique can be applied to master
stations, master station control equipment, central equipment ports, etc.
NOTE: If swap testing, the station addresses must be updated to the address of the current location to
match what the software configuration will be looking for. Then return the address to the original when
placing the station back to its original location.
28|IL1057 Tek-CARE300III Installation Manual
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TekTone Sound and Signal Mfg., Inc. All Rights Reserved
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