Technical data

SP40S Multi-Function Facility Communication System Manual, Revision L
1
8 Troubleshooting
8.1 Introduction
WARNING: Some electronic components store a high voltage
charge, even though power is not connected, and can cause a
dangerous shock if touched. Do not touch exposed circuitry on the
SP40S Multi-Function Facility Communication System unless the
circuitry has discharged for one hour and a safe discharge procedure
is used.
WARNING: Provide UL required alternative signaling means
during trouble conditions and servicing to assure adequate protection
of people and property. Ensure that qualified service persons
immediately replace any modules that have malfunctioned.
CAUTION: Make sure that only qualified personnel in accordance with the
procedures in this manual conduct troubleshooting and servicing. Do not attempt
to make other adjustments, modifications, or repairs. Never use water, steam,
cleaning liquids or sprays on the panel.
CAUTION: User servicing of the panel is limited to field-wiring changes, PC
board replacement, and following the instructions in the Installation chapter
(Chapter 4) and troubleshooting procedures in this chapter.
 After any troubleshooting procedure is completed, perform a complete system checkout
as described in Section 4.6.