"The phone is a remarkably complex, simple device, and very rarely ever needs repairs, once you fix them." - Dan/Panther
Started by coors, March 06, 2012, 08:01:48 PM
Quote from: Phonesrfun on March 07, 2012, 12:23:43 AMOK, assuming you are using a 500 set as a network, make sure all the hookswitch contacts for the old 500 have been disconnected from the 425 network inside the 500 base.The network inside the 500 base will be labeled 425 and then a dash letter, I.E. 425-B, E or some other suffix. I will refer to that network as a 425.Line cord wires:Connect the red line cord wire to L2 of the 425 network, and the green line cord wire to L1 (Same connections as a model 500 phone.Ringer wires:Connect the red ringer wire to L2 on the 425; connect the black ringer wire to L1 on the 425; connect the slate ringer wire to K on the 425, and connect the slate/red ringer wire to A on the 425. This is the same wiring that the original 500 has too.Place a short jumper wire between L1 on the 425 and C on the 425.Payphone handset (Assumes this is a G handset with 4 wires...Black, Red, White, White)Red handset wire and one White handset wire to TR on the black terminal strip at the top of the lower housing. (Either white wire will do)Black handset wire to T on the black terminal strip at the top of the lower housingOther white handset wire will go to terminal GN on the payphone hookswitch.Connections between the subset (500 model phone with 425 network) (5 wires)Wire 1 between L2 on the 425 network and terminal Y on the payphone hookswitchWire 2 between RR on the 425 network and terminal R on the payphone hookswitchWire 3 between R on the 425 network and TR on the black terminal strip at the top of the lower housingWire 4 between B on the 425 network and T on the black terminal strip at the top of the lower housingWire 5 between GN on the 425 network and terminal W on the payphone hookswitch.Make sure there is a jumper between terminals BBX and BB on the payphone hookswitchThat should do it. All this assumes, of course, that nobody has messed around with the dial wiring, or the configuration of the transfer contact points between the upper and lower housing. If that is the case, then there will be more work involved.Also, when replacing the upper housing, always do so with the phone off hook, otherwise the flimsy little brass tab that controls the bent coin release can get bent and break off.Good luck.
Quote from: Phonesrfun on March 07, 2012, 12:14:11 PMI had one other thought about the model 500 phone you are planning on using for a subset. If it is an older type that has some of the hookswitch wires soldered to the 425 network terminals, then I should give you some additional instructions on how to deal with that situation. Let me know.