MASTR III no tx audio

[WX5812]

I have no more options to try to get this thing to pass audio. I've turned every pot up,down,mid way and I cannot get any audio to come out of the transmitter, Carrier only. If I enable the cw ID I can hear that just fine. It has a microphone connected to the front and when I key that and talk it sounds like I'm 50ft away when in fact I'm 2 inches from it. I've followed the directions on repeater-builder and set everything to their specs. I want to add an external controller but I need to at least hear myself ok from the actual microphone on the repeater itself. The tx module has no fault light, and i have tried 2 different microphones. Does anyone have any idea on what I'm missing?

 

[prcguy]

It could actually be broken and a schematic diagram and an oscilloscope will tell you the answer.

I have no more options to try to get this thing to pass audio. I've turned every pot up,down,mid way and I cannot get any audio to come out of the transmitter, Carrier only. If I enable the cw ID I can hear that just fine. It has a microphone connected to the front and when I key that and talk it sounds like I'm 50ft away when in fact I'm 2 inches from it. I've followed the directions on repeater-builder and set everything to their specs. I want to add an external controller but I need to at least hear myself ok from the actual microphone on the repeater itself. The tx module has no fault light, and i have tried 2 different microphones. Does anyone have any idea on what I'm missing?

 

[WX5812]

Thats always a possibility. I brought in another mastr iii and plugged in the tx synthasizer and system module that was in the other machine with the same results.. I only have 1 tx synthasizer that has dip switches and for some reason the other system module causes the tx systhasizer to throw a fault light, even with the same code plug put in it. not sure whats goin on there.

 

[fineshot1]

Is it possible this masterIII has been narrow banded before you acquired it?

 

[WX5812]

In the software it gives me the option between 12.5 and 25...... I was able to salvage another system module. I installed it and had success with no fault light and i have crisp and clear audio when i talk through the mic on the repeater itself. I do not have the equipment as of right now to adjust and tune the receiver properly so im trying to use a kenwood tk-790 in its place temporary. The sensitivity between the 2 are similar and will work for what im doing. However I cant get audio to pass to the transmitter. I have the controller connected to P2 pin 8 for tx audio (mic high) and p2 pin 14 for ptt. It just will not pass audio.......