TT8900 OPT
–
Installation and Service Manual
Page 31 of 41
5.
Servicing
Having the TT8900 OPT been engineered from the ground up with modularity in mind, its next-
gen internal T20 architecture allows most components to be quickly replaced in the field.
This chapter covers the printer maintenance and the procedures for replacing the following
modules, NOT directly connected, or linked to mains power:
»
Card Reader.
»
PIN Pad.
»
T20 SCM.
»
T20 TSM.
»
T20 IIM.
»
T20 CMM (Cellular Modem).
»
T20 CGM / DGM / CNM Protocol Converter Modules.
Important: For servicing any other component not covered in this chapter, we recommend
the engagement of a suitable electrical contractor that is familiar with TT equipment and the
methodology required to safely access and navigate the internal configuration system
embedded within the OPT.
Safety Considerations
The following safety considerations must be read and understood before any servicing is done
on the OPT:
»
Dangerous voltages exist under the yellow safety cover. DO NOT REMOVE THE COVER.
»
The OPT has an internal uninterruptible power supply (UPS).
Note: Please follow the instructions detailed in
chapter 2.3 General Maintenance
from
the complementary
TT 8900 OPT
–
User Manual
, in case the OPT needs to be
switched off: first power off
the battery, then
the mains power.
»
The door assembly of the OPT weighs approximately 10kg. The oil filled struts that
prevent the door from opening too quickly, and restrict its travel, should be inspected
regularly to ensure that they are working, that there are no leaks and that they are
fastened to the door and cabinet securely. If the door is difficult to open, do NOT force
it, contact your service company. Always support the door when opening.
»
When the door is open, corners can represent a hazard that people could walk into.
»
The door should not be opened when it is raining. If it is no longer raining but the OPT is
still wet, then wipe around the door with an absorbent cloth before opening to ensure
no water drips into the cabinet.