I enter the VFO duplex modes on the proper frequencies in my area. I push the PTT and the unit keys quickly, beeps and ends the PTT by itself resulting in no transmission.
The unit eats batteries like candy so I have it plugged into the wall adapter because it wont stay powered up if I disconnect it. The battery installed is nickle hydride battery MH-FNB-41 battery pack DC 9.6V 1050mAh. Any solutions fellas?
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You have to be in "VFO" mode. Your best bet on that extremely difficult to use radio, is to get "chirp" and the proper cable and program it via a computer. If you search on-line for "baofeng programming" you may find an alternate set of instructions. Your absolute best bet: throw that PoS away and get a Yaesu FT-60.
Have you tired performing a general reset (see page 92 of your Operator's Manual). If you have tried this and still have had no luck, be sure that you have established a good ground to earth and that you are not getting a lot of RF back into your 920.
If you do not have a manual for your rig, one can be downloaded here http://www.download.n7tgb.net/yaesu/FT920/man_ft-920.pdf
You can also call Yaesu Tech Support for free/additional help at 714-827-7600, or join the Yahoo FT-920 User's Group at http://groups.yahoo.com/group/YaesuFT920/
I just had my FT-50R repaired due to a overheat issue with a reverse polarity diode. When I asked Yaesu to alao check my Yaesu for the memory battery I was told by their top technican that the radio does not have a memory battery in it. I hope this helps.
The rubber power button is impregnated with carbon and when pressed, it makes contact with two points on the printed circuit board, turning on the radio. This button eventually wears out and needs to be replaced, which is a rather easy process.
I've performed the operation four times - takes about 15 minutes. The button is available from Yaesu.
I also tried "repair kits" for these buttons which are supposed to replace the conductive surface. Both times, they failed again within a couple of weeks.
The upside is the new button is not as quite as tall as the original and requires depressing it below the surface of the case to switch, which prevents accidently turning off the radio.
scotwho, I personally do not know the radio you are asking about, but I do have many years working with radios in troubleshooting. What I am guessing is, if the heatsink gets hot, then whatever is connected to the heatsink has shorted out. Two main parts come to mind here, and that's the audio chip, and the transmitter output final/chip. Possibly the main IC (brain) that controls most everything, but I doubt that. The radio needs to go to a repair shop that can troubleshoot the damage/ and find an answer as to why it occurred. A lot of times the factory's do not use heatsink compound when they assemble the units, and after an x amount of time the part/parts will fail. 10cents worth of heatsink compound can make a radio last a few years longer. Probably not the answer you wanted but I hope this helps,, let us know. Mechanic