[Repeater-Builder] transmission is intermittent and voice cuts out with my mc-micro repeater

Seem to have period where my transmission (voice) cuts out for a few seconds every so often, and the person at the other end can't hear me. On the receiving end,Does anyone have any idea? Thanks in advance,

[Repeater-Builder] asking a help about GP-340 charger

i have a gp340 rapid charger,the number of charger is HTN9000B, is started charge with a steady red ,but Every few Minutes is flashed red (about 3 second), Then retourn to a steady red, never reached the flashed or steady green. i change these ICs: tl494, lm324 and 14051b, but no thing change,