Author Topic: Western Electric 653A ringing problem  (Read 1280 times)

Offline Jf510

  • *
  • Posts: 115
Western Electric 653A ringing problem
« on: January 30, 2017, 04:24:06 PM »
Hi..I am working on a Western Electric 653A wall telephone. The phone has a #4 dial and the ringer has a 700 on it. I followed the wiring diagram and after checking it a few times I feel I did it correctly. The diagram says to connect one ringer lead to K and the other to L1. When doing so the phone shorts and goes to intercept. I reversed the ringers leads and then also the slate/yellow leads on the 1 MF capacitor with no results. The diagram had the slate wire on the 1 MF going to K and the yellow to L2Y. With the ringer disconnected the phone operates fine. At this point I am stumped.

Offline poplar1

  • ***
  • Posts: 6263
  • 1051-AL
Re: Western Electric 653A ringing problem
« Reply #1 on: January 30, 2017, 04:53:59 PM »
You may have a defective ringing capacitor (short).
"C'est pas une restauration, c'est une rénovation."--François Martin.

Offline Jf510

  • *
  • Posts: 115
Re: Western Electric 653A ringing problem
« Reply #2 on: January 30, 2017, 05:22:46 PM »
Hi..you mean that 1MF capacitor? Does it look like I wired it correctly?

Offline poplar1

  • ***
  • Posts: 6263
  • 1051-AL
Re: Western Electric 653A ringing problem
« Reply #3 on: January 30, 2017, 05:38:12 PM »
Hi..you mean that 1MF capacitor?
Yes (yellow and slate conductors)
Does it look like I wired it correctly?
Yes. I usually put the red ringer wire with red line wire on L1, black ringer wire and slate capacitor wire on K, and yellow capacitor wire on Y-L2, but is should work as you have it wired.

         (red)             (black)           (slate)                         (yellow)
L1<---------ringer---------->K<---------------capacitor----------------->L2

You may want to connect just the ringer and 1 MF capacitor (without the talk circuit) just to isolate it, but if the 1 MF capacitor is shorted, the ringer will either short the line immediately (the line will be busy); or, when you call your land line, it will "trip ring" (answer the line on the first ring, then busy out the line).
"C'est pas une restauration, c'est une rénovation."--François Martin.

Victor Laszlo

  • Guest
Re: Western Electric 653A ringing problem
« Reply #4 on: January 30, 2017, 07:04:58 PM »
Put your meter on the cap and let us know if it's shorted.

Offline Jf510

  • *
  • Posts: 115
Re: Western Electric 653A ringing problem
« Reply #5 on: January 30, 2017, 08:12:36 PM »
I put my small ohm meter on the leads of the disconnected cap and it went 2/3 of the way and not all the way like a short. I am not sure what that means.

Offline rdelius

  • **
  • Posts: 2208
Re: Western Electric 653A ringing problem
« Reply #6 on: January 30, 2017, 08:14:45 PM »
Leakage. You should see a kick and the meter should go back down. No resistance

Offline Jf510

  • *
  • Posts: 115
Re: Western Electric 653A ringing problem
« Reply #7 on: January 30, 2017, 08:23:07 PM »
I put my meter back on the leads and it just went 2/3 the way and stayed there.

Offline rdelius

  • **
  • Posts: 2208
Re: Western Electric 653A ringing problem
« Reply #8 on: January 30, 2017, 10:08:10 PM »
Bad leakage If it leaks with your low voltage meter it is really bad if high voltage is applied.It is bad replace it.You need a .5 to about 1 uf capacator with a voltage rating of 250 or so volts of higher.

Offline Jf510

  • *
  • Posts: 115
Re: Western Electric 653A ringing problem
« Reply #9 on: January 31, 2017, 05:01:24 PM »
I took out a 1MF from a ringer box just to see if it worked on my 653A and indeed it did so I had in fact a bad capacitor so thanks for the advice. I would not of figured it out without your help.

Victor Laszlo

  • Guest
Re: Western Electric 653A ringing problem
« Reply #10 on: February 01, 2017, 07:20:17 PM »
It's always a good idea to check things with a meter, first, before the wrong ideas start to get clogged in your brain.

Offline Jf510

  • *
  • Posts: 115
Re: Western Electric 653A ringing problem
« Reply #11 on: February 01, 2017, 08:40:43 PM »
I don't know how to use a meter that well just the basic so I wouldn't know what to look for so the advice I was giving here was really helpful.