
SECTION 3 - TROUBLESHOOTING
3.1- MCS CONTROLLER OPERATION
SYMPTOM | 
  | POSSIBLE CAUSE | 
  | POSSIBLE SOLUTION | 
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MCS Controller totally inoperative (no  | 1.  | +12V and/or GND wires are not  | 1.  | Confirm connections  | 
functions, no LEDs).  | 
  | terminated correctly.  | 
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  | 2.  | Max number of keypads per  | 2.  | Confirm load  | 
  | 
  | Zone or   | 
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MCS Controller controls   | 1.  | RS485+/- wires are terminated  | 1.  | Confirm connections  | 
sources, but LEDs won't correctly track  | 
  | incorrectly  | 
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sources.  | 2.  | MCS Controller dip switches are  | 2.  | Confirm MCS Controller dip switch  | 
  | ||||
  | 
  | incorrect  | 
  | settings  | 
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MCS Controller LEDs are lit, but will  | 1.  | IR (PIN 2) and/or GND (PIN 7)  | 1.  | Confirm connections  | 
not control   | 
  | not connected  | 
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MCS Controller LEDs are lit, controls  | 1.  | 1.  | Program   | |
  | programmed  | 2.  | Ensure that IR emitters are connected  | |
  | 
  | 
  | ||
  | 2.  | IR emitters not connected  | 
  | to source and connected to the cor-  | 
  | 
  | properly  | 
  | rect IR outputs  | 
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MCS Controller controls wrong zone.  | 1.  | MCS Controller connected to  | 1.  | Connect to correct Zone Input  | 
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  | incorrect Zone Input  | 
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MCS Controller’s MUTE button turns  | 1.  | Zone is in   | 1.  | Press and hold VOL DOWN then  | 
Yellow/No Paging or   | 
  | 
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  | press MUTE on MCS Controller to  | 
Music features  | 
  | 
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  | turn off the DND feature.  | 
Page 12  | © Channel Plus, Inc. 2004 • All rights reserved. 4/04  |