WE 2500 buttons do not make tones

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I have a WE 2500 phone that has quit working. I thought it was becuase the  
last phone tech from UVerse messed up my polarity, and the only old phone t
hat is polarity sensitive is this phone. So I reverse the red and green aga
in in the phone jack. Still will not break dial tone. I repeatedly pushed t
he hook to break dialtone and get a silence, then pushed the buttons, and t
here were no tones. Does this mean that the mechanism is broken, or that th
ere is a polarity problem? I did plug another modern phone, not polarity se
nsitive, into the jack, and it works fine.

Re: WE 2500 buttons do not make tones
On 12/7/2013 8:15 PM, finnleym44@gmail.com wrote:
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What kind of voltage is the UVerse line putting out, and what's across  
the line when it's off hook and you push a button?  Since it's not  
coming from the CO, the POTS line might be spec'd low, able to support  
modern phones but not old ones that draw more current.

Re: WE 2500 buttons do not make tones
On Sat, 07 Dec 2013 23:52:18 -0500, Fred Goldstein

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Reverse tip and ring, many earlier 2500 sets didn't have a polarity
guard...

ET

Re: WE 2500 buttons do not make tones
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Got any other helpful suggestions?

--  
Regards,
John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. http://jl.ly

Re: WE 2500 buttons do not make tones
wrote:

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Sure (sorry I missed the T/R swap...).  Since he can break dial tone
with pulse dialing (switchhook action), the tone pad failure is
probably the single transistor in the circuit (I forget the part #),
particularly if all the switches fail to operate...   If only a single
switch, or a single row, or a single column doesn't work, check the
switch contacts.

Less common failures are broken wires connecting to the tapped
inductor or a cap failure.

Of course getting an old dial pad and swapping it will confirm the
problem is with the pad.

ET



Re: WE 2500 buttons do not make tones
On 12/8/2013 3:05 PM, John Levine wrote:
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Take the telephone to a neighbor's house who has a CO-powered line and  
see how it works.  If there still are such lines in the neighborhood...

I suppose the the single transistor could have blown, though, given its age.


Re: WE 2500 buttons do not make tones
On 12/7/2013 8:52 PM, Fred Goldstein wrote:
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Try the set with a 9v battery, that should be plenty to make the tonepad  
work (or try the friend's house as already mentioned).

z!



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