User's Manual Part 2

Troubleshooting
G
ATEKEEPER SYSTEMS INC.
2007
CART CONTAINMENT MANUAL
Page 72
Troubleshooting Single Loop Installations
With a single loop installation the troubleshooting becomes more difficult if the cable shows no obvious damaged
areas. You must run a jumper cable across the loop breaking your loop up into smaller sections. This is difficult
in a busy parking lot so be careful! Your jumper needs to be twisted into a piece of the loop cable. Run the
jumper along side the existing cable. Follow the steps mentioned above and eliminate section by section. Once
the problem is isolated and found re-splice your test locations.
Troubleshooting Double Saw Cut and Twisted Pair with Lock Boxes
Once you complete your Ohm reading, twist the two antenna loop cables together to close the circuit. Take your
meter and walk the perimeter approximately half way around the locking zone. Look for an area where the cable
can be accessed easily. If need be you can dig up the conduit in a landscape area or carefully remove the sealer
in a section of parking lot. After exposing the cable, separate the loop into two sections. Because the cable is
closed at the transmitter end of the loop, you can measure both sides as separate loops. Keep in mind your
undamaged cable will read 2.2 ohms of resistance per 1,000 feet of cable. By measuring the two separate loops
you can determine which direction the break is. Do not re-splice the cable at this point as you will want to twist
the cable together to close off the bad section. Walk the perimeter cable again looking for any obvious damage.
Nothing obvious, repeat the above test each time breaking the loop in half. This will shrink the area to find the
damaged cable. Once the problem is isolated and found re-splice your test locations.
Replacing the Central Transmitter Fuse
Tools you will need:
Circuit tester to check whether or not there is power to the fuse
Fuse puller (not necessary, but strongly recommended - available at electronics or auto parts stores)
Replacement fuse:
For a 9100 Central Transmitter: T-LAC TIME LAG 500ma 250volt
For a 9110 Central Transmitter: T-LAC TIME LAG 1amp 250volt
The fuse is located on the Central Transmitter board, and is labeled F2. To replace the fuse you must first
remove power to the transmitter.
1. Remove power to the Central Transmitter by pulling the plug from the receptacle. If there is a battery back-
up make sure you are pulling the transmitter plug, not the plug from the battery back-up. Do not depend on
the toggle switch, this de-energizes the board but there is still power coming into the fuse. If the transmitter
is hard wired (no cord), find the circuit breaker and de-energize the breaker.
2. Check the fuse with your electric meter and make sure there is no power to the fuse. Remove the fuse. The
fuse is in a tight holder on the board, and is surrounded by sensitive electronic parts; care needs to be taken
when removing it. There is a fuse removal tool available at electrical and auto part stores.
3. Replace the fuse with one of the following:
4. Plug in the power cord/ turn on the circuit breaker.
5. Push the toggle switch to the up or on position.
6. At this point the Green LED should light, indicating that the transmitter is energized.