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Audio equipment

FISHER CA-225 Amplifier Transformer

cmonedero

hace 5 años

Hello, I have verified that the amplifier transformer does nothing at all. As they tell me, it began to smell burnt and has not turned on again. My problem is that I don't know how to find out what other transformer I can use. Does anyone know how to find out what voltage the transformer delivered? The amplifier has a maximum consumption of 260W. Thank you!!!!

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jomi

38.143

hace 5 años

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hace 5 años

Review the source circuit with this diagram

CA-225-Diagrama.pdf [991.29kb]

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cmonedero

hace 5 años

Thank you very much, you are a crack Jomi.
I have reviewed the scheme and I have several doubts (this is the first time I have faced a burnt transformer):
1.- A fuse without code appears above the T7 output of the transformer. Could it be that this fuse was inside the transformer? Because I haven't found it anywhere.
2. -If I had to change the transformer, how would I calculate the Vs that must be delivered by outputs T12 and T13?
Thanks again!!!!!!

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