Hi
I would like to save £50 or so and see if it may be possible to repair this unit. It is a Videx 836-1 Speaker Unit Module that enables communication via a remote phone link between a pair of gates and our house nearby. The fault occured after a lightning strike some time ago and after some helpful assistance from Videx technical support I have managed to fix all the problems except just one.
The problem is that nothing is heard at the phone handset (at the house) when anyone speaks into the microphone (although communication the other way is fine) I have eliminated the cable as an issue and checked all the voltages on the unit and they all as spec For instance when the handset goes off hook the DC voltage of 8V across the mic pins drops to 0.47 as expected. Videx sent me another mic to try so I know this is not the problem. Not being an expert in this area I was wondering how complex this could be to fix and whether I could even augment the current PCB with something I could knock up myself. I can send a photo of the PCB if needed
Many thanks
I would like to save £50 or so and see if it may be possible to repair this unit. It is a Videx 836-1 Speaker Unit Module that enables communication via a remote phone link between a pair of gates and our house nearby. The fault occured after a lightning strike some time ago and after some helpful assistance from Videx technical support I have managed to fix all the problems except just one.
The problem is that nothing is heard at the phone handset (at the house) when anyone speaks into the microphone (although communication the other way is fine) I have eliminated the cable as an issue and checked all the voltages on the unit and they all as spec For instance when the handset goes off hook the DC voltage of 8V across the mic pins drops to 0.47 as expected. Videx sent me another mic to try so I know this is not the problem. Not being an expert in this area I was wondering how complex this could be to fix and whether I could even augment the current PCB with something I could knock up myself. I can send a photo of the PCB if needed
Many thanks