2995dxcf mic gain maxed out?

[338_MtRushmore]

This 2995 seems to work ok except the mic gain needs to be on 10 with an xtreme 2018 mic. Any idea what might cause this, or where to start looking?

 

[sp5it]

Too much output from mic and butchered limiter

 

[999]

How does the radio sound with a stock mic?

 

[338_MtRushmore]

Too much output from mic and butchered limiter

That seems very counterintuitive. Doesn't too much mic output cause one to have to decrease mic gain? The only thing I could find that looked off was a resistor feeding vr18 had obviously been messed with. I can't even get near spec voltage at TP8. This probably isn't going to be good

 

[338_MtRushmore]

How does the radio sound with a stock mic?

I don't have one. The audio sounds fine, there just isn't much rf out unless the mic gain is full right.

 

[338_MtRushmore]

VR18 is maxed out at 11.5 volts on usb. I wired up a 636L with the same results.