TROUBLESHOOTING ALARM SYSTEMS                         Faxback Doc. # 47852


Check for catalog number of the alarm

      Q: Is this a new installation
      A: Yes? Go to PANEL TEST section below.
      A: No?  Keep reading

      Q: Has it always done this?
      A: NO -Ask what has changed?

      Q: Was a new sensor added?
      A: Yes - go to ZONE TESTING section below

      Q: Grade A Service involved?
      A: Yes? Go to Grade A Service section below
      A: No? Check wiring - wired in series for NC switches or no
         switches are wired in parallel.

NEW ZONE - Check wiring, try another sensor on zone (one that you know is
           working). Check for environmental changes (RFI, appliances
           which cause unusual drain, etc.)

      Q: What lights just started blinking 
      A: All lights?  Go to PANEL TEST section below.
      A: PANIC zone?  Go to PANIC ZONE section below.
      A: FIRE zone?  Go to FIRE ZONE section below.
      A: Any other single zone?  Go to ZONE TESTS section below.

      Q: Is the door/window closed?
      A: Yes - Go to panel testing 
      A: No - close door/window

      If the zone still violated, go to panel testing
      motion sensor - go to motion sensor testing


PANEL TEST

490-0450; 490-0470; 490-0475; 490-0451; 490-0485

1.  Remove all wires except keypads and label them as you remove them.
2.  Install fire EOL Module or 2.2kohm resistor furnished with panel (NOT
    BOTH!!)

      Q: Does it arm?
      A: Yes, then panel is ok. Go to SENSOR TEST section below
      A: Won't arm.  Then take panel to RadioShack store so it can be
         sent in for repair.

SENSOR TESTING

      DOOR/WINDOW SENSORS
      
      1. Check Wiring - Series for NC sensors, Parallel for NO sensors
2.  If multiple sensors used, each sensor must be tested in
   sequence that means all but the first must be disconnected,
   then one at a time add the next one and test the system until
   all have been added back in.
      3. Replace defective sensors

      MOTION SENSORS
      490-0208(A)

      Q: Is there power to Sensor? (Is Red light on?)
      A: Yes - Check sensor wiring. (FaxBack Document # 46720). If wiring
         matches the documentation then the sensor is bad and should be
         replaced.
      A: No - Test accessory terminals for proper voltage. Using a
         multimeter should show 12- 18 volts, if not the panel is bad.
         Using the dialer or siren, they should activate, if they do not
         the panel is bad.  Take the panel to RadioShack for repair.

      490-0550
      Q: Is there power to Sensor? (Is Red light on?)
      A: Yes - Check sensor wiring and test sensor. (FaxBack Documents
         #6170 and 6171)). If everything matches documentation then
         the sensor is bad and should be replaced.
      A: No - Test accessory terminals for proper voltage. Using a
         multimeter should show 12- 18 volts, if not the panel is bad.
         Using the dialer or siren, they should activate, if they do not
         the panel is bad.  Take the panel to RadioShack for repair.

ZONE TESTING
       
        FIRE ZONES 
       (490-0485, 490-0475, 490-0470 ONLY)

       Q: Are smoke detectors installed?
       A: No
          1. If 2.2k ohm resistor not installed, install it.
          2. If 2.2k resistor is installed, check it.
       A: Yes
          1. If EOL not installed at end of smoke detectors, install it
          2. If 2.2k ohm resistor installed also, remove it
          3. If EOL is installed do the following:
             a. Disconnect the EOL from end of smoke detector run.
             b. Then disconnect smoke detector wiring from panel.
             c. Connect EOL directly to panel.
             d. If still a problem, disconnect EOL, connect resistor as
                in 1. above. If still problem it is a bad panel.
             e. If problem corrected, bad EOL (as of 4/22/98 is SOWG).
             f. If panel and EOL test good at this point connect only one
                smoke detector, and install EOL after it. If system arms
                ok, disconnect EOL, add 2nd detector, putting EOL after
                that.  Test arm system again, and then keep adding smoke
                detectors in same fashion as 1st one(s) until system will
                not arm.  You have then located the bad smoke detector.

       PANIC ZONE
            
            Q: Does system shows PANIC and FIRE ZONE violations?
            A: Yes - see ZONE TESTING above

            Q: Does system shows only PANIC ZONE violation? Any wiring
               connected to NC (normally closed) and COM (common)?
            A: Yes - disconnect wiring on NC and NO (normally open),
               jumper the NC and COM terminals.  If there is still a
               problem then it is a bad panel. If problem goes away,
               check panic switch wiring and accessory tamper switch
          wiring. If problem does not go away try another NO
          sensor.
          If panel is the 490-0485, be sure Zone 8 NC jumper has
          been removed.  If there is still a violation and the
          wiring is correct, then it is a bad panel.

CONNECTING KEYPADS

1.  Connect a separate wire to each terminal on the back of the
   remote keypad.  For easiest installation, use a different color
   wire for each terminal.
2. Connect the remote keypad's positive (+) terminal wire to Terminal
   39.
3. Connect the remote keypad's DATA: 1 terminal wire to Terminal 40
4. Connect the remote keypad's DATA: 2 terminal wire to Terminal 41.
5.  Be sure the remote keypad's address switches (Switches 1 and 2)
   are set to OFF.
6. If you want the remote keypad to sound a tone each time you press
   button, set Switch 3 to ON.
7. If you want the remote keypad to sound a tone during the entry
   delay and to sound an arming confirmation beep, set Switch 4 to
   ON.  Otherwise, set it to OFF.

To connect additional remote keypad, use the same procedure. However, set
each additional remote keypad's address switches as described in its
owner's manual.

If the keypad does not arm the system, check all connections.  If there
are multiple keypads, be sure they have different addresses.  Follow the
specific arm/disarm commands for the panel being used.  If it still does
not work, try another keypad.

GRADE A: SERVICE
 
Grade A: service allows constant monitoring of the zones wired as Grade
A.  Check the Grade A: diagram in the owner's manual.  It involves hooking
a NO (normally open) sensor in series with a NC (normally closed)loop,
and installing a 2.2k ohm resistor at the mid point of the loop.  The 
example is on page 14 in the owner's manual.

We suggest the 2.2k ohm resistor be placed after the last switch in the
loop.  That way if the wire is cut anywhere on that loop, the alarm will
sound.  Wiring a series of NC switches in series with a 2.2k ohm
resistor, and connecting the wire to the NO and Common terminals (instead
of NC and Common)also creates a Grade A: Service installation.