Hello,
Our video baby monitor recently stopped producing light from its infrared LEDs and so I took it apart to see if I could figure out what was going wrong, but am having trouble debugging it.
Everything else works with it, just the IR LEDs aren't working.
I've attached 2 pictures of the board, one of the front and one of the back. The photoresistor on back seemed to be working and responds OK to light changes.
The visible LED (green) on the front lights up fine. I measured a 1.8V drop across that LED. There are 8 IR LEDs, and none light up.
Its hard figuring out exactly what is going on without the schematic.
I measured the voltage drops across the IR LEDs, starting in the lower left corner of the picture and going clockwise they are:
0.1V
10.1V
0V
0V
0.1V
9.1V
0V
0V
Does anyone have any advise for figuring out what is going on here? I'm kind of a beginner at this and am not sure how to proceed. Thanks.
Our video baby monitor recently stopped producing light from its infrared LEDs and so I took it apart to see if I could figure out what was going wrong, but am having trouble debugging it.
Everything else works with it, just the IR LEDs aren't working.
I've attached 2 pictures of the board, one of the front and one of the back. The photoresistor on back seemed to be working and responds OK to light changes.
The visible LED (green) on the front lights up fine. I measured a 1.8V drop across that LED. There are 8 IR LEDs, and none light up.
Its hard figuring out exactly what is going on without the schematic.
I measured the voltage drops across the IR LEDs, starting in the lower left corner of the picture and going clockwise they are:
0.1V
10.1V
0V
0V
0.1V
9.1V
0V
0V
Does anyone have any advise for figuring out what is going on here? I'm kind of a beginner at this and am not sure how to proceed. Thanks.
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