Question about LG 42PX5D 42 in. Plasma HDTV
An infared detector is just a transistor that is covered with clear plastic.
matching the spec on it though is hit or miss.
first be sure it is not the ir trasmitter, take it to radio shack and see if their infared re-transmitter broadcaster sees it . or aim at a digital camera
or hold near a radio though that only hears the digital part.
radio shack has some iR transistors in stock usually .
basically you can just plug one in and it may work but you may have to know how to bias (balance ) the transistor to work correctly.
there are many places to scrounge a ir receiver transistor
old tvs , learning remotes, laptops , printers ,
you can inject the output signal of the remote into the ir circuit to see if it is working but you need to add a resistor and drop the voltage a bit.
hope that helps some.
Posted on Apr 26, 2008
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