Author Topic: 500 Set will Not break Dial Tone (Read 838 times)

Doug Rose · « **on:** May 30, 2014, 09:57:03 AM »

I decided to refurb this beauty, it came out great. Only trouble is I cannot break DT. Is it wired correctly, everything else is fine....thanks....Doug

Adam · « **Reply #1 on:** May 30, 2014, 10:17:24 AM »

First thing I would try to find out is: Is it the wiring, or the dial itself? Try removing either the blue or green dial lead. That should cause the phone to lose dial tone permanently. If it does, the wiring is correct.

If removing a blue or green dial lead does NOT cut off the dial tone, it's either the wiring, or the network could be defective. The wiring does look correct from here, but that's *so* difficult to troubleshoot from a picture...

So, if it's the dial, is it pulsing and still not breaking dial tone? If it is pulsing, then the speed is grossly off. If it is not pulsing, it's a physical thing causing that set of contacts not to open and close properly. They could be bent? Or, the part on the dial that intersects the contacts broken or misaligned?

Doug Rose · « **Reply #2 on:** May 30, 2014, 10:22:04 AM »

Adam...I removed the blue and then the green, both times I lost DT. I swapped them as well as swapping the yellow wires. No luck....Bummer

...Doug

LarryInMichigan · « **Reply #3 on:** May 30, 2014, 10:29:12 AM »

Quote from: Doug Rose on May 30, 2014, 10:22:04 AM

Adam...I removed the blue and then the green, both times I lost DT. I swapped them as well as swapping the yellow wires. No luck....Bummer ...Doug

That means that the problem is in the dial. Swapping the blue and green wires will make no difference, and the white wires are only for shunting the receiver. Check the dial cam. That is usually the culprit on these dials.

Larry

Doug Rose · « **Reply #4 on:** May 30, 2014, 10:30:47 AM »

thanks Larry....the set is all dated 5/5/53 ...Doug

Adam · « **Reply #5 on:** May 30, 2014, 12:27:33 PM »

What Larry said. :-)

Can you hear the dial pulse when you dial?

Doug Rose · « **Reply #6 on:** May 31, 2014, 08:48:59 AM »

thanks guys...just what it was....I appreciate your help....many thanks....Doug

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