Low volume on TK760G

[m-gerty]

We bought the radio used about 6 months ago and has been in service since then. Last week user noticed the power up beep was unusually low in volume, soon afterwards he saw that the volume was way down for voice also. A day later hr was showing someone the problem and it worked fine, for a few days.. With the volume wide open, on my bench you can barely hear any radio traffic at all.
I took the covers off and re-flowed some solder joints that looked suspect, but I'm more of a programmer t

 

[EWC_BDN]

I've replaced 20+ speakers on those radios. It's a very common failure, but it was always completely dead. Maybe the guys waited until it was completely failed before they brought it in for repair. Or maybe you have a different issue.

Do you have an external speaker you could try? There's a 3.5 mono jack on the back. That's always a good way to prove a bad speaker! IDK about USA dealers, but most Canadian Kenwood dealers will probably have those speakers in stock. or you could try online. Or use an external speaker instead.

Another thing I could suggest on that one is to carefully remove the front board and reseed the connectors at each end of that flat cable and make sure no screws inside are loose. Like they don't have to be super tight, but screws that are like multiple full turns loose can cause issues.

Maybe bad 12v supply too? Like if you don't Tx with this radio it would be harder to notice because that's the most power hungry function. Audio is the 2nd most power hungry thing, but much much less so.

Good luck!

 

[m-gerty]

Sorry for the delay... I have tried an external speaker and it sounds the same, I'll try the cables tomorrow. The power was good in the truck and on my bench...Thanks