Chamberland garage door opener repair?

"My remote broke for my very old (defunct) chamberlain automatic garage door opener. Chamberlain tech support told me they suggest I buy a whole new unit. Is there any other way to make my door usable with a different remote, or some other arrangement?" (From: Panayiotis Panayi (panikos@mishka.win-uk.net).) Which Chamberlain operator is it, i.e., which model number. You can buy the handsets for Chamberlain operators up to 5 years old. If it is older you will have to buy a new Rx & Tx for it. Most operators have three screw terminals on the back for the attachment of Rxs. The old Chamberlain operators conformed to this. The new ones have the Rx built onto the main PCB inside the operator and have 4 screws externally for pushbuttons and infra red safety beams. If yours has 4 screws you will have to provide a separate PSU for the new Rx or solder two pieces of wire after the step down transformer on the PCB. You must do it before the rectifiers. Otherwise the current drain from the Rx ...  more