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29
FAULT
ISOLATION PROCEDURE
CORRECTIVE ACTION
To further verify the fault determined in the above step, connect
suspected faulty speaker wires into a connector pertaining to a
known, working power amplifier channel. Press the SI TEST®
pushbutton. If the LED fails to illuminate, the speaker wires or
respective speaker is faulty.
Some/all power
amplifier and SI
TEST® LEDs do
not illuminate or
operate properly
during signal or
silent test activation.
Observe speaker driver loading
levels.
If speaker drivers are not operating at proper capacity because of
insufficient loading, power amplifier and SI TEST® LEDs
will not operate effectively. Rectify situation by installing or opening
up appropriate speaker load capacity.
IPS will not activate
via remote controls
(i.e., RF or landline).
Attempt local activation via
pushbutton controls on the ESC
864 front panel.
If local activation works, check RF paths and antenna connections
for systems with RF link. If problem is not resolved, refer to IPS
Remote Activation Faults and Troubleshooting Procedures.
If local activation works for systems with landline interfaces, clean
and reconnect interfacing connections. If problem not resolved,
replace line.
Содержание IPS 400
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