Sounds like a voltage regulator to me. the speaker would not have anything to do with the transmit, the receive yes but, with no transmit or receive try the voltage regulator number on it will be ta7217 it will have roughly 10 legs on it and it will be attached to a heat sink or the chassis of the radio. also you might look at where the antenna wire connector screws on to the radio, on the inside of the radio on the back of the connector there should be a wire coming from the back of the plug and connecting to the circuit board , it could have came loose. Good luck.
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The Victsing unit states that it is a receiver. This will receive the wireless signal from a device and output sound through the headphone jack. A bluetooth transmitter would input sound into the headphone jack from your tv or other source and transmit the signal over bluetooth to a paired receiver. Two of the same type of unit will not pair with each other.
I would guess you have a PL set on the receive side, and not on the Transmit side. So the audio is being blocked by the PL (as it is supposed to be!) Check your programming, make sure you have the same PL on tx and rx.
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.
I have the same model as you. I have two transmitters and three headphones actually. Please see below:
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.
I had the same (squealing) problem on transmit with the Midland 1001Z
when I used it indoors as a base unit. The problem was my power
supply: it broke into oscillation when drawing more than 150 mA at
13.8V. The 1001Z draws about 150 mA on Receive, and much more (but
only about 900 mA) on Transmit. If using the 1001Z as a base unit, I
suggest you power it with a fully-charged car battery indoors, or test
your power supply to check if it can't supply the required 1 Amp,
approx., on Transmit. It's a GREAT radio, just give it a good power
supply. My power supply was defective out of the box, but now I have a
good one and get great reports on signal strength and audio quality.
Remarkable, for the low price and 3 year warranty. Good luck!
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.
here is the info you asked for the following is the correct wiring.
Mic Wiring Info Stock Mic Wiring 1. Ground Shield 2. Audio Yellow 3. Transmit Red 4. Receive Black 5. CH. Up White 6. CH. Down Blue Turner 4-Wire MIC. Wiring 1. Ground Shield 2. Audio White 3. Transmit Black 4. Receive N/C 5. CH. UP N/C 6. CH. Down N/C
Turner 6-Wire MIC. Wiring 1. Ground Shield & Red 2. Audio White 3. Transmit Blue 4. Receive N/C 5. CH. UP N/C 6. CH. Down N/C
Astatic 4-Wire MIC. Wiring 1. Ground Shield 2. Audio White 3. Transmit Red 4. Receive N/C 5. CH. UP N/C 6. CH. Down N/C
Astatic 6-Wire MIC. Wiring 1. Ground Shield & Blue 2. Audio White 3. Transmit Red 4. Receive N/C 5. CH. UP N/C 6. CH. Down N/C
Low humming sound is invariably the ripple of the AC mains supply breaking through.
Sometimes it is radiated from nearby wiring, sometimes it is caused by a hum loop and sometimes it is an indication the capacitors in the power supply are failing.
I have never seen this problem before, check if the VOX is activated, this could cause to transmit the radio, but the voice must be transmited.
check if the Accesory connector is not dirty, clogged or damaged
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