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The antenna will not power up - RCA WHP140 Consumer Headphones

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I have the same model as you.

Plug in the transmitting unit into a good working power outlet. Make sure you have the audio connected to a loud source. Turn on the source device producing the loud audio to be transmitted to your headphones. Now see if the transmitting unit's LED light is on. Check headphones for audio. (May have to tune in the headphones and adjust its volume as well).
I recommend that the source of your audio have its built-in speakers off, while still providing audio out to your transmitting unit, via an external audio output. Check your source manual or look for audio jacks on the front or back. There may be a setting to turn this on and for the main built-in speakers to be turned off as well.

If this does not work, unplug the transmitting unit, and then plug it back in again, after waiting for about 10 seconds - all while audio is being provided to the unit. It should come on.


Remember that if the audio to the transmitting unit is quiet OR off for about one minute, the transmitting unit will turn off and you will hear FM noise, loudly, on your headphones. This is due to the "lack of audio" timer built-in to the transmitting unit.

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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First order of business is to check and see if the antenna is operating properly. If the wire in your harness is intended to power the antenna, connect 12 volts to this lead, and the antenna should go up (this needs to be done with the key in the ON or ACCY position). If the antenna does not go up, check the fusebox for a blown fuse. If the antenna does indeed go up, then you can scratch that off the list of possible problems and move on to the next step.

The Clarion should have a power input wire to keep the clock alive, and a power wire (normally of heavier guage) to actually power the radio. Make sure the radio operates when the key is in the ON or ACCY position. If the radio is operating, so far so good.

I'm kind of confused when you say there are two wires on the clarion... "power antenna turn-on" and "auto antenna". Are these both on the clarion? There should be a wire that constantly feeds the antenna with power (I would cal this one auto antenna). It should always be powered to 12 volts. The antenna should operate when the "antenna turn on" lead becomes 12 volts. Normally this ONLY happens when the clarion RADIO is on (ie: if you're listening to a CD, the antenna probably won't get activated).

After checking all this, if you're still having problems and if you haven't already done so, grab a DC volt meter and verify that the clarion power antenna turn on lead goes to 12 volts when you turn on the radio. If it does not, then there is an internal problem within the radio. If this lead IS going to 12 volts when it is supposed to and the antenna still isn't working, then my guess is that the antenna is malfunctioning.

Let me know what you find out... I'll keep looking at stuff from this end. Good luck.

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