Hi,
I've got an IMG Stage Line STA-602 power amplifier and the transfo is dead.
Problem is: I can't find anywhere the specs of this part. The reference written on it doesn't give any result.
I contacted monacor and they just can sell me the part without telling me the specs.
I want to test the transfo before buying another one so I need the specs.
Do you have any information?
Thanks in advance
Who are you?
(mod)
Comments
Hi there used to be thermal fuses on the transformer, look at this ?
0
Hi,
There is a fuse on the mains input but it's not blown
Alex
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Hi!
There is two output, one is 2X12VAC, and the second is about 60VAC. Check some 4Ω 380WRMS transistor amplifier schematics, what is the recommended dual power suplly for this output power.
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Hi,
I knew for the 2x12V, this one is pretty obvious on the diagram (same on this same website). The other one seem to be specified at +18V VCC but nothing is specified vor VDD, I want to be sure of this before ordering a new transfo or further testing it.
About the transistor the problem is that I'm not sure which one I should test (I only have the diagram for the moment... with the device in front of me it will be easier). I think it's the MJE340 but they only give the maximum rating in the datasheet (300V)
Thanks anyways for the information, I'm getting to it
Alex
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How do you know if the transormer is dead? Did you measure the windings with ohm-meter? What are the results?
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Hi,
The fuse blows when I turn on the device. I I remember well the devide turned on, then as soon as the relay from the soft start switched, the fuse blew
Alex
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