Quartz Q16/Q32 System Manual
18 May 2004
Issue 5.00
Page 43
Reset Microprocessor
A green LED on the matrix modules and the remote control panels denotes that the microprocessor is
running by flashing once a second. If this is not the case try pressing the RESET push button. The
adjacent red LED shows briefly the reset condition.
Visual Inspection
It is surprising how many faults can be located by visual checks. Unplug the modules. Check the
condition of the gold edge connector fingers (see below). Check that all the components fitted in
sockets are correctly seated. Refit the modules ensuring that they are locked in place. Remove the
cover of the unit and check that internal cables are correctly plugged in.
Edge Connector Contacts
Despite the gold plating of edge connector contacts they are apt to collect dust and grease which can
degrade the contact. When you remove a module check the fingers are clean, free of grease and
undamaged. If necessary clean the fingers with a clean cloth and a solvent based cleaner such as
alcohol. Take care not get the solvent on plastic parts as it can cause damage. Avoid touching the
clean edge connector contacts with your fingers!
Configuration
Check that the equipment is correctly configured including any hardware links. Refer to
Section 1:
Custom
and
Section 3: Installation
.
Some Common Faults
Below are some of the most common problems encountered in Quartz router installations.
Frame
1.
Q-link has not been terminated properly. One end at least
must
be terminated in 75
Ω
. In fact,
the system is
guaranteed to function on long cables only if both ends have been
terminated.
2.
Two frames have the same address (hex) switch setting.
3.
Two frames or no frame have been set to have
master
status.
5.
A DIP or address switch has been changed but the RESET has not been pressed to
take
the
new setting.
Further Fault Finding
Further fault finding will usually involve the use of schematic diagrams and optional extender
modules. This should be entrusted to an experienced technician.
Alignment
The Q16/Q32 products use modern high stability components, have a conservative design, and have
low heat dissipation. Therefore there are no user alignments needed.
Routine Maintenance
The only items requiring routine maintenance are the cooling fans fitted in some matrix frames.
Where the fan has a filter, this should be cleaned periodically. The fans used are rated at 50,000
hours so one can expect to replace them after five years. There is no monitoring of the fan so it is
recommended that the fan is replaced during a period of routine maintenance rather than waiting for
the fan to fail. However the equipment will continue to run without the fan in ambient temperatures of
up to 35
°
C but extended use without the fan may reduce the life of other components in the unit.
