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Dial / hook switch contacts

Started by Tom B, May 16, 2011, 05:06:58 PM

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Tom B

I have a 302 that's got a problem which I think is related to the dial or hook switch contacts. The phone carries on ringing when I pick up the receiver. It also won't dial out - anyone point me in the right direction?
Tom

Phonesrfun

Not enough information.

Do you get a dial tone when you pick up the receiver to start with?

Was it once working, then suddenly stopped, if so, what were you doing at the time?

This could be a wiring issue, a bad transmitter connection, or the two switch issues you asked about.
-Bill G

Tom B

#2
Bill
I don't get a dial tone when I pick up the receiver, just a quiet hum.  The phone was working before I took it out of service because there was a crackling noise when I used it. I changed the receiver element and the noise remained. I decided to check again, and that's when I discovered that it didn't connect when called. It rings, but nothing else
Tom

dsk

If I don't remember wrong, the 302 has all the dc current going through  the transmitter, try to take out the transmitter, and just short the 2 springs, If you get the dial tone, the transmitter, and those contact spring is where find the fault.

dsk

deedubya3800

#4
DSK, your memory is good. That could very well be where your problem lies. Check the transmitter. I'm thinking either your transmitter element isn't making contact with one of the springs, a wire going to the transmitter is broken or loose, or current isn't passing through the transmitter. Those would surely be easier to check than the dial and hookswitch.

For example: A 302 with a missing transmitter will not give a dial tone or stop ringing when picked up, but there will be some very low noise in the receiver when it's off the hook.

Tom B

d_s_k and Deedubya
Thanks for the info - I'll test and report back later ;)
Tom

Tom B

This issue has been sorted - that's why this forum is invaluable. Thank you.
Tom

deedubya3800

Yes, I've found these folks quite helpful as well!  :)

But do tell: What turned out to be the problem?

Tom B

I cleaned and adjusted the contacts which sorted the dial tone problem, and switched the transmitter element which cleared the crackling noise. ;D
Tom