atcomsystems.ca/forum Forums TDM Business Telephone Systems Vodavi Telephones & Systems Blank displays on 24 btn keysets

TJ,
Why don't you have the customer swap those sets with another location. At least you could confirm that it's a set and not a port issue.

Larry

i have seen where 4 pin line cords will cause problems such as these and i replace them with 2 pin cords and problems go away.

oobie,

Good suggestion, I wonder why VODAVI packs 4c ine cords in telephone box.

Technically i would say you have a good thought, that being the outer conductor could cause a unbalance line or set up some inductive field.

Thanks to all for support on this matter.

Sorry, guess 2 extra conductors are to be used for feature (ADP), which i doubt most installers never use.
I stand corrected.

Actually, the second pair on an STS phone isn't going to be the problem. All it does is feed tip and ring to the "AUX" jack on the bottom of the phone. Other Vodavi phone models use the second line cord pair for external devices, but not on the STS.

The black/yellow pair is simply transferred to the green/red pair of the AUX jack. I believe that this is not covered in any documentation for the system, so maybe I have spread a little bit of information that might be of use for a change.

Good suggestion though, because on an XTS, DVX or Triad system, this would be an excellent idea. The second pair on those systems is live and can cause phantom problems. Keep up the good work.

Tech support suggested reseating ribbon cables inside keysets.

Worth a try

Did you find anything out regarding the display?
I have had the same problem at one of my customers with a 24 button and an STS. Unplug/plug back in seems to help clear at that time, but the problem still occurs. The phone works correctly taking calls and then the display will blank out and sometimes reappear after you hang up.

Sorry, but don"t have a clear answer to the lcd
issue. My version of keyset is ver. 1.3.

I replaced keyset with new one, and have the old one in office to baby sit it, to see if it acts up again.

Wish i could tell you more but that's the way it is.

Thanks for the response! I actually have two systems that have this problem. But, have about 100 to 150 out in the field.

The problem is occuring with phones that have been assigned x-100. I'm sending one of those phones in for repair due to sticky keypad, I'm going to mention the display problem. I will let you know if I find anything out.

Wham oh......

Mine is happening on extension station 100 also.
Good post