I am troubleshooting Genie garage door opener safety sensors and am trying to determine if the sender is actually emitting infrared. My digital camera does not detect any output from the sender. Anything else I could use to test?
Detecting an Infrared Beam / Garage Door Opener
- Thread starter George7941
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Checked all that out, I have determined that either the sender or the receiver is not working.
google knows all george. Ask google, not bob's.
If your smartphone can't see the signal, use a tv remote that works, and make sure it sees the tv remote. if yes, and no signal from garage, no transmitting signal is going out, bad sender.
If your smartphone can't see the signal, use a tv remote that works, and make sure it sees the tv remote. if yes, and no signal from garage, no transmitting signal is going out, bad sender.
The sender has a light when it gets power. The receiver has a light that goes on when it sees light from the sender. The receiver can break or it's wiring can break.
Originally Posted By: George7941
Checked all that out, I have determined that either the sender or the receiver is not working.
George, I knw you are a technical man (so please don't take this the wrong way from a newbie), but did you verify any wire come undone?
also if they are with dust bunnies?
can you post the genie model#?
Checked all that out, I have determined that either the sender or the receiver is not working.
George, I knw you are a technical man (so please don't take this the wrong way from a newbie), but did you verify any wire come undone?
also if they are with dust bunnies?
can you post the genie model#?
Point that IR diode directly in any camera (camera on phone prefered)and check if it is emitting
Thanks everyone, for all your suggestions. Issue has been resolved. Ordered a set of sensors from Amazon on Friday evening and it was at my front door 11am Saturday. Thanks, Prime membership! None locally available immediately. Canadian Tire lists it but shows it discontinued.
https://www.amazon.ca/GENIE-GEN37220R-Re...p;keywords=GSTB
I tested the sensors on my workbench and I had the sender and receiver mixed up, it explains why the camera did not pick up the IR. Turns out the old receiver was defective. The picture shows the camera picking up the new sender.
When the receiver senses the beam, it shorts, at high frequency, the incoming (high impedance) 12v DC power supply to signal the motherboard everything is A-ok with the safety beam. I imagine they use this somewhat involved system so that the safety system cannot be bypassed with a resistor. The scope shows the waveform. The scope settings are 5ms/divn and 2V/divn.
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