kent@wsl.dec.com (01/05/89)
I have in my (remote) possession two older TouchTone Princess phones. With problems, of course. What I don't have is a schematic. The phone were manufactured in 2/71 and 3/75. Both have the code "2702B" stamped on the bottom. Neither one rings -- this seems more likely to be a configuration problem than anything else, because they both have ringers (unlike much older Princess phones which needed a separate one). I just don't know what jumper to move to which terminal. One phone (the older one) is considerably stranger. It receives calls just fine, but can't place them. When you dial, it produces tones, but they don't break dial tone. My ear tells me that the tones aren't quite right -- one of the pair sounds right, but the second tone sounds consistently too high pitched. Strikes me as pretty weird. Can anyone help? chris
smb@research.att.com (01/05/89)
Touch-Tone phones often suffer from problems where one one row or column doesn't make contact, so you only get a single tone generated. The trouble is almost always dirty contacts. Take apart the phone, remove the plastic covering the keypad internals, and gently clean all of the switch contacts -- you can see them move when you press the buttons.