"The phone is a remarkably complex, simple device, and very rarely ever needs repairs, once you fix them." - Dan/Panther
Started by GLadstone, July 27, 2018, 10:48:28 PM
Quote from: Southernphoneman on May 02, 2016, 09:05:47 PMIt could be a polarity issue, try this test, change the red and green of the mount cord from the L1 and L2 respectively, then plug it in and if it dials out than you know thats what it is.
Quote from: Phonesrfun on February 09, 2016, 01:00:56 AMBefore the introduction of the IC chip to make touch tone tones, the dial operated with switches and tuned circuits with induction coils that would occasionally fall out of tune.If the dial is only producing a single tone, as opposed to two simultaneous tones, then it is probably a switch issue. There are many switches on the early touch tone dials.If it is producing two distinct simultaneous tones, then it might be a tuning issue. If that is the case, I would send it to Steve Hilsz for a tune-up. In order to tune a dial, you need a certain sized triangular non-ferrous tuning tool and a frequency counter, and some patience and knowledge of the dual tones produced by each button.If it is a switch, then cleaning the switch contacts with a piece of card stock rubbed between the contacts should work in most cases. You don't want to use anything more abrasive than say a rough piece of card stock, such as a business card. Otherwise the precious metal points on the switch contacts will be worn off and you will be forever trying to keep the switch contact working from that point on.
Quote from: Tim Mc on June 13, 2014, 11:18:41 AMI received my 1500D yesterday and hooked it up to the house line to test. The DTMF tones sounded off and would not break dial tone. I removed the shell and the keypad's clear thin plastic dust cover, and burnished any contacts I could reach with a piece of paper index card. I still had the weird tone problem, so I removed the bottom half of the dust cover. One of the round ferrite pot covers (oscillator coil?) with its center coil was loose and dropped out. I tinkered with it and found that I could change the tone by rotating the coil cover while holding it firmly in place. I experimented until the tones sounded right and could break dial tone. A dab of CA adhesive (super glue) and it's now in working order. Anyone that has a 1500 key pad experiencing weird tones may want to see if the coil covers are loose. Hopefully this will save a key pad or two from the trash bin in the future.