Greetings, I have 4 Motorola Talkabout T5720s bought all the same time about 1.5 years ago. 1 failed after a year - I say failed (did not transmit or receive nothing even though it was on the same channel/Interference code). Another has just failed same problem - 18 months old. They don't go outside, they are always inside, and don't move from their location - only movement is to talk or to change the batteries when they get low. I have tried all suggestions here and settings - nothing appears to work. I can't believe that they just stop working after a year of operation - and would appreciate an idea of what to do next short of buying new ones. Thanks
You did not mention if the display comes on and they look functional, yet do not work. If the radio actually powers up. We will go from the idea the radio powers up and present a few troubleshooting ideas:
1) Clean your battery contacts. Use a pencil eraser and clean the contacts both in the radio and on the battery. If you are using a Motorola rechargeable battery pack, you should also clean the battery contacts on the charger. (Note: rechargeable NiMH and Li-Ion batteries have a 14-18 month life expectancy. Signs of a bad battery include: no or intermittent transmit, the radio shutting off when the PTT is depressed, lots of static when receiving, and/or erratic display.)
2) Set your interference code eliminator (code) back to zero (off), and do the same with your Qt filter if you radio is equipped with one. This will put you back to a very basic operation.
3) Check your VOX or iVOX settings, be certain these are also turned off.
4) Check your accessory jack to see if something is plugged into the hole. Remove any and all accessories to try in a basic form of operation.
5) Moisture is the enemy. Be certain radios are not stored near air conditioners, humidifiers, etc.
If the above items do not solve the problem, you likely will need to retire the units. As for your next venture. If you go with the Motorola TalkAbout line, examine your radios before the one year mark, save the receipt, most have a one year warranty. If you are wanting an all around better radio, look at the Commerical line of radios offered by Motorola, ie. CP110 and BPR40. They would offer a better durability and are designed to do a 40 hour work week.
Best regards. Read More At : Talkabout T5720 (7 Channels) 2-Way Radio...