User Manual

Maintenance a n d Troubleshooting 10-25
Replac ing the Fuses in the Monitor
The TRITON+ monitor contains a removable power regulator
secured to a special dome that resides inside the monitor enclosure
and is attached to the monitor top. If a regulator failure occurs, it
typically involves a bad fuse on the regulator board corresponding
to communications or sensors. The regulator board has three fuses
(ADS p/n 508071, 508072, and 508073) that may be replaced
independently upon fai l ure.
The 5-volt blue fuse co rr espo nds to the sensors and can b e blown
due to a shorted sensor. If this fuse i s blown, the moni t or ca nnot
detect the sensors. The 3.3-volt yellow fuse is associated with the
processor board. When blown, this fuse prevents the monitor from
logging data a nd performing successful communications. The red
(main input) fuse is related to the regulato r board and rarely has
issues.
Refer to the Troubleshooting section beginning o n page 10-33 to
identify whether a fuse may be the source of a particular p r o blem
that ha s occurred within the TRITON+ syste m and, if so, which fuse
may require replacement
Note: If the troubleshooting procedures indicate that a
sensor may have sho r ted or a sensor may have shorted and
the 5-volt (blue) fuse on the power regulator in the moni tor
corresp onding to the sensor may have blown, do not
connect the potentially shorted sensor to the same monitor
with a new 5-volt fuse or another monitor until confirming
that the sensor is functio nal (i.e., no t shorted) using a
voltmeter. If the sensor is shorted, it also will blow the
newly replaced 5-volt fuse or the existing 5-volt fuse in the
other monitor. Please contact ADS Client Services for
detailed instructions on dete rmining whether a sensor has
shorted.
Since the fuses attach to the board on the inside of the power
regulator dome inside the monitor, access to and replacement of a
fuse first requir es opening the monitor and removing the dome.