• No Sound or No Power

• Power Switch Is Off
• Intercom Unplugged
• Intercom Have A Blown Fuse
• Electrical Outlet Is Not Working
• UPS (A/C Power Back-Up Unit) Is Not Working

• Plug It In or Turn Unit Back On
• Check Electrical Circuit Breaker
• Replace Fuse With Same Type And Size
• Replace UPS Battery Back-Up Unit
• Call Poley @ (210) 647-8812 For Repair

• Scratchy Sound While Listening To Room
• Static From Control Panel Speaker
• Unit Keeps Beeping All By Itself
• Intercom Squeals During All-Call
• Intercom Is Making A "Whistling" Sound
• These Symptoms Happen When It Rains
• Touching Room Switch sounds Scratchy

• Dirty Switch bank Switches! Set All Switches To
  "P" Position & Does Symptom Go Away?
• Defective Control Unit! Unplug 9-Pin Connector
  On MCP-35A & Does Symptom Go Away?
• Disengage All-Call Button On MCP-35A Unit &
  Does Symptom Go Away?
• Station Speaker Too Close To Master Intercom Unit
• Corroded "Splice" Connections

• Disconnect, Move Or Lower Speaker Volume
• Repair or Replace Defective Switch bank(s)
• Trace Out And Re splice All Wire Connections
  (And "Home Run") Related To Room Speaker
• Call Poley @ (210) 647-8812 For Repair

• Unit Is Making A "Whistling" Sound
• Sometimes Unit Calls-In All By Itself
• Some Switch bank LED Call Lights Are Dim

• Call Wires Are Intermittently Shorting
• Corroded Wires Or Rodent Problems
• Partially Shorted Call-In Wires On Call Switch

• Trace Out And Re splice Wires At Splice Points,
  Building Entry Points; Replace Rooftop Wiring
• Call Poley @ (210) 647-8812 For Service

• Bell "Time Tone" Is Not Working
• The Bell "Time Tone" Isn't Ringing

• Master Clock Not Is Working Properly
• Master Clock To Intercom Wires Aren't Connected
• Intercom Bell "Time Tone" Module Is Not Working

• Program Master Clock Time, Date & Schedule
• Re splice Wires From Master Clock To Intercom
• Call Poley @ (210) 647-8812 For Repair

• They Can Hear Me But I Can't Hear Them
• I Can Talk "Out" But I Can't Hear The Room

• Speaker Or "Home Run" Wires Are Shorted To "Ground"
• Call Switch Is In The "Privacy" Mode
• Speaker Transformer Is Shorted To "Ground"
• Loose Unsecured Wires On Speaker Transformer

• Rewire & Secure Speaker & Transformer Wires
• Trace Out And Re splice Wires At Splice Points,
  Building Entry Points; Replace Roof top Wiring
• Call Poley @ (210) 647-8812 For Service

• Room Speaker Sounds Distorted

• Bad Speaker Or Transformer
• Shorted Speaker Transformer Wires

• Replace Speaker And /Or Transformer
• Clean-Up And Secure Transformer Wiring
• Call Poley @ (210) 647-8812 For Repair

• Room Calls In During Announcements
• Room Call In When Bell "Time Tone" Rings

• Short Between Speaker And Call Wires

• Trace Out And Re splice Wires At Splice Points,
  Building Entry Points; Replace Rooftop Wiring
• Call Poley @ (210) 647-8812 For Service

• Master Intercom Speaker Sounds "Boomy"

• Intercom Speaker Is Bad
• Room Speaker Or Transformer Is Bad
• Room Speaker Transformer Wires Are Shorted

• Replace Speaker And /Or Transformer
• Clean-Up And Secure Transformer Wiring
• Call Poley @ (210) 647-8812 For Repair

• Everybody Can Hear The Office Sounds

• "Emergency" Mic Button On Intercom Control Unit Is On
• All Call Desk Announcer's Mic Is On

• Turn "Emergency" Mic Button Off
• Turn Desk Announcer's Mic Off
• Call Poley @ (210) 647-8812 For Repair

• All Call Is Not Working Properly
• All Call Volume Sounds Distorted Or Low
• Unit Is Blowing Fuses Or "Tripping" Breaker

• Loose, Corroded Or Bad Mic Connections
• System Is Overloaded Due To Short, Rain Or Corrosion
• Loose, Corroded Or Bad All Call Amp

• Check And Tighten All Mic Connections
• Check Overall System Speaker "Load"
• Call Poley @ (210) 647-8812 For Repair

• Room Call-In Switch Doesn't Work

• Bad Call Switch Or Broken Wires
• Bad Splice Or Broken Wire On "Home Run" Wires

• Trace Out And Re splice Wires At Splice Points,
  Building Entry Points; Replace Rooftop Wiring
• Call Poley @ (210) 647-8812 For Service

• Room Speaker Is Not Working
• Room Speaker Is Low or High In Volume

• Speaker Is Bad Or Damaged
• Loose, Corroded, Severed Or Bad Wiring

• Replace Defective Speaker With Same Type
• Trace Out And Re splice Wires At Splice Points,
  Building Entry Points; Replace Rooftop Wiring
• Call Poley @ (210) 647-8812 For Service

• Room Speaker Is "Real" Loud

• Wrong Type Or Mis wired Speaker
• Shorted Speaker Transformer Or Transformer Wires

• Rewire Or Replace Speaker With Correct Type
• Call Poley @ (210) 647-8812 For Service

• Room Speaker Is Intermittent
• Room Speaker Goes In & Out
• Room Speaker Keeps Cutting Out

• Loose Connections On Speaker Or Connector
• Intermittently Shorting Or Loose Wire Connections

• Trace Out And Re splice Wires At splice Points,
  Building Entry Points; Replace Rooftop Wiring
• Call Poley @ (210) 647-8812 For Service

• Room Keeps Calling In All By Itself

• Bad Call Switch Or Intermittently Shorted Call Wires

• Replace Call Switch Or Trace Out Call Wiring
• Call Poley @ (210) 647-8812 For Service

• Intercom Sometimes "Hums" All By Itself

• Electrical A/C Power Line "Brown-Out"

• Install A/C Power Voltage Stabilizer Or UPS
• Call Poley @ (210) 647-8812 For Service

Teradon - Bogen - Dukane - Deltacom - Rauland - Telecor