Question edited for clarity.
Question moved from Cars and Trucks to Intercoms.
Contact the maker. It is likely that the buzzer sounder has failed, or the power to it. You say you "looked at the wiring diagram", I couldn't find one. I guess you meant the 'circuit board'.
https://www.fermax.com/uk/technical-support
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PDF
BaoFeng BF-888S ... Lights red during transmit, green when receiving a signal ... you that battery needs recharging. Alert tone will sound and Red LED will blink.
7 pages
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Question edited for clarity.
Question moved from Cars and Trucks to CB Radio.
You need the opinion of another person because your friend may be the one with the issue.
Check you have good connections to the antennae.
Check the Antennae is tuned using a SWR Meter.
Check the Antennae is in a good spot.
You did not post what antenna it is or what make and model radio you have. The antenna issue could be due to a lot of things or it could be the radio telliing you there is a problem that is not present.
Is it actually getting hot or are you feeling the RF energy which would feel like a burning sensation? What does an SWR meter say about your antenna? Are you running a linear amp?
There are 2 adjustments for the S meter on a Connex cx-33. SV1 and SV2. The thing about setting that meter is you need to have an accurate RF generator the can ouput -93 dBm
Drop me an email to [email protected] and I'll send you a pdf copy by return. By co-incidence I have just obtained a pair and scanned in the 2 page manual.
Trev
On the back there is a reset button. Hold it until the light in front turns solid red. Then it will be reset and within about 2 minutes a ladies voice loudly will say ready to pair, and will keep saying that every two minutes until you are successful or give up after a hour or so of trying every possibly way to get it to connect... Though the only pictures ive seen online of these cameras working are when they are linked to Iphones. 0 androids has it worked that I noticed.
Here is the link from momentum on configuring:
https://www.youtube.com/watch?v=Kl0VHep_42w
Goodluck
Have you tried going into the blue tooth section of the phone to see if it can 'see' the signal from the earbuds? Some earbuds need to be put into 'pairing mode' to connect. The most common method used is to press and hold the power button down, Press and hold the power button. Do not release the button for at least 5 seconds. You should hear the start up tone and then another separate tone. This is the earth buds going into pairing mode. You phone should then be able to find and pair to the earbuds.
are you using the antennas that are installed thru the mirrors or the ones on the side of the truck. If you are using them you should make sure that they are connected to the coax. some just get thrown together ,antenna to mount then one end of coax to ??? so take a multi meter and set it on x1.Touch bottom of the antenna and the connector that come out of the dash. If you are connected you should get a reading. If you are not ,then you will have a problem hearing anyone because you are not connected to the antenna but the coax. If the connection is good to go then I would try running a ground wire to the chassie and maybe even a ground strap.
