Marantz 2230 transformer with open secondary

[runningdog]

I have a 2230 with an open secondary. It is the pair going to the rectifier. There is power to the lights and the power supply. I'd like to fix rather than replace this transformer if possible.

I see that some (all?) 2230 transformers have a thermal fuse. But would that affect only a single secondary pair? Is the thermal fuse on the primary side of the transformer?

Thank you

 

[petehall347]

thermal is usually on primary .

 

[wlhd1610]

thermal is usually on primary .

+1

Bob

 

[runningdog]

Thank you both for confirming the thermal fuse is on the primary side of the transformer.

 

[petehall347]

did you test at transformer wires ?

 

[runningdog]

did you test at transformer wires ?

I disconnected the wire pair where they connect to the rectifier, and measured across them. No resistance with power off, no voltage with power on.

 

[petehall347]

not even high resistance ? that might indicate a simple bad connection . not much to lose to check where the wires solder on the other end to the enamelled wires .

 

[runningdog]

My Fluke meter says "OL". But that's a good thought. When I pull it out I'll take a look. There is nothing to lose if the transformer cannot be recovered otherwise. It's a cosmetically clean transformer in a corrosion free untouched 2230.