Bose Wave Radio input blown

[BikeisDusty]

I am trying to repair a Bose Wave radio.  One of the input caps was a total short, so that was replaced.  However, it still was not working.   I am thinking the radio took a surge that it self protected itself from.

The AC input has two paths.  One that goes to a large transformer and the other to a rectifier.  The rectifier side is where the large cap had gone south. The transformer side also had damage that I did not see originally.

The path to the transformer has one side with a small inductor.  The other side has a thermistor and inductor.  The inductors are the same from Toko.  I cannot find the exact item as the part number does not show up.  It looks like this though: http://www.toko.co.jp/products/pdf/inductors/8rhb2.pdf   I believe the inductors are small as there are not many turns in the coil.

The inductor with the Thermistor is blown.  For testing purposes, is it safe to try the circuit a jumper its place?  This is just feeding a transformer that has multiple taps.  The transformer then services 3 separate rectifier circuits.  All of these appear to be working according to the diode tester on my multi-meter.

Is there anything else I should look for in the circuit that could have caused the inductor to let the smoke out?

Thanks
Bill

[PA0PBZ]

The AC input has two paths.  One that goes to a large transformer and the other to a rectifier.  The rectifier side is where the large cap had gone south. The transformer side also had damage that I did not see originally.

That's the part that worries me, are you saying that the AC input goes directly to a rectifier? 

Look at the attachment, is this what you are talking about?

[BikeisDusty]

Sorry, I should have been more clear.  It goes to the ground plane that starts over at the rectifier.  Your diagram helped, even though it is not the same.  I believe that a diode in the bridge has gone bang as it is a short.  The other 3 check out in the circuit. 

I just jumped the inductor and then tapped the leads to the board as similar to what is shown in your diagram.  The 12VDC lead arched.  The others did not, so that lead me to re-check everything in its path.    I hope it is just the diode as the rest is crammed around the big heat sink and shielded box.

If you think I should check other things let me know. 

Bill

[PA0PBZ]

Sorry, I should have been more clear.  It goes to the ground plane that starts over at the rectifier.

That would even be worse, you don't want the AC input on your ground is it?

Anyway, if you think one of the diodes is shorted replace all 4 of them and try again.