– 103 –
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+
Light receiving unit
Regulated power supply
Electrolytic
capacitor
100µ10V
1k 1/4W
Carbon resistor
LED
DC5V
Viewed from the Light receiving
unit terminal side
5V
Remote control switch
Video camera
TV
+
-
0V
(0V)
(5V)
Ultra redray test card
Sensible area
Within 2 cm
The sensible area should flash in orange when you
operate the remote control unit if is good.
3
2
1
3
3
3
You can check the remote control switch by other methods as explained below.
(1) Using a video monitor
Connect a video camera to a TV and aim at the remote control switch. If infrared rays are emitted from the
switch, you will see a flash in violet on the monitor screen.
(2) Using a Checker
You can make a checker by yourself. Its circuit diagram is shown below.
(3) Using the test card