Cadex C4000 SERIES, User Manual

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Service
1. Static Precautions
The micro chips used in the C4000 may be damaged by
static charge if not handled properly. Static charge is
generated through the contact of non- conductive
materials such as plastic bags, synthetic clothing and
carpeted floors.
When replacing fuses, back-up battery, EPROM or
installing the Option-P, always pay attention to the static
charge. It is recommended
that a grounded wrist band
be used. If a wrist band is not available, firmly grasp the
metal sides of the housing with both hands before
touching any components.
Repeat after moving around.
2. Replacing Fuses
The C4000 is protected by three types of fuses:
Primary Fuse
located in Power Entry Module.
Battery Fuse
accessible through Fuse Cover on bottom.
Circuit Fuse
can only be replaced by service technician.
Warning Before replacing any fuse, remove all test
batteries from the unit, turn the unit off and disconnect
the power cord. Replace with the same type of fuse.
Primary Fuse
The Primary Fuse is located in the power entry module
on the back of the unit. To replace the fuse, disconnect
the line cord and remove drawer with fuse.
Battery Fuse
Each Station (battery input) is protected by a Battery
Fuse. There are four Battery Fuses. The fuses are
accessible through the Fuse Cover on the bottom of the
C4000.
Open fuse
An open Battery Fuse condition is identified by the
absence of charge or discharge current when a battery
is in service. An appropriate fault code may also be
shown.
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