ScyTek Electronics ASTRA 777-TC - Manual (Page 21)

Astra 777-TC - Page 17
Adding/Replacing One-Way Transmitters
To replace lost or stolen transmitters or to add additional transmitters into the system, have all
desired transmitters ready and follow the steps below.
Note: Up to 4 one-way transmitters can be programmed to operate the system. Any previously
stored transmitter code will be erased if it is not programed within the following sequence.
To program the transmitter(s):
1. Turn on the ignition key On, Off, On, Off, and back On.
· The siren will chirp 3 times.
2. Press and hold the Override switch for 5 seconds.
· The siren will chirp 5 times.
· The LED will illuminate.
3. Press Button 1 on the first transmitter.
· The siren will chirp once.
4. Press Button 1 on the first transmitter again.
· The siren will chirp twice to indicate it has learned the code.
5. Repeat steps 3 and 4 for each transmitter (up to 4).
6. Turn off the ignition key.
Two Car Operation
If two vehicles are equipped with Astra 777-TC systems, for convenience both can be operated
using the same remote transmitter. If all four transmitters are to be used with both cars,
program transmitters A and B into the first vehicle in the manner described above. Program
transmitters C and D by pressing the Shift button twice before performing steps 3 and 4 above.
When finished programming the first vehicle, program transmitters C and D into the second
vehicle as normal, then program transmitters A and B by pressing the Shift button twice before
performing steps 3 and 4 above.
When programmed in this manner, the driver of the first car can also operate the second vehicle
by pressing the Shift button twice and the desired function button.
Battery Replacement
Your Remote Transmitter uses a 12 volt alkaline battery (type 23A), which will require
replacement in time. Depending on the amount of use, the battery may last up to six months
or more before it needs replacement.
When the battery needs replacing, the system’s operating range will decrease or the transmitter
LED may not be as bright.
In order to change the battery, first remove 2 screws from the back of the transmitter and
separate the top and bottom halves of the case.
While replacing the battery make sure that the positive and negative terminals are positioned
correctly, then carefully reassemble the transmitter case.