Instruction manual

Clear-Com Communication Systems
ICS 92/52 Intercom Panel Instruction Manual
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MAINTENANCE
INTRODUCTION
This section provides panel microprocessor resetting instructions,
troubleshooting guidelines, schematics, assembly drawings, and
component lists for the ISC-92 and ICS-52 intercom panels and the
ICS-92T and ICS-52T digital intercom panels. For information on XPL
Accessory Panels, the OPT-100, and the COM-1 communications
module, see the ICS-2003 Intercom Panel Instruction Manual (part
810303Z).
These panels operate at 14 VAC, supplied from an external
transformer. Transformers can be ordered for either 117 VAC or 220
VAC.
PANEL RESET
The panel’s microprocessor has a reset button located in an unmarked
hole just below the “Listen Labels” button on the right side of the unit’s
front panel. If the panel is acting erratically, try resetting it by doing one
of the following:
• Inserting a small screwdriver or a stiff piece of wire (such as a bent
paper clip) into the hole and pushing the reset button.
• Unplugging the panel from AC power and reconnecting.
TROUBLESHOOTING
When experiencing the symptoms listed below, attempt the following
solutions in the order outlined. The solutions are listed in order of
difficulty with the first being the most simple and easy. For
troubleshooting guidelines for the entire system, see the Overview
chapter of this manual.
The panel’s LEDs and push-button lights fail to light.
1. Check mains AC power into the panel.
2. Ensure the external power supply is properly connected to the
panel.
3. Replace the panel.
The LED indicator above a selector key does not light when the
key is pressed.
1. Ensure the selector key has a label assigned to it (the LED indicator
will not light without an assigned label).
2. Reset the panel.
3. Replace the panel.
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