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max807
Apprentece
6 Posts |
 Posted - Jul 10 2007 : 8:29:59 PM
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Some guy earlier said this:
quote:
If the output to amp was shorted out and he just replaced the transistor he didn't fix the problem. In older amps components don't like to go out alone! meaning they usually take other parts of the circuit out with them! One transistor being blown can damage other components (right back to the power supply). When transistor was shorted it caused high currents that should have blown your fuses in the power supply! If the repair person just replaced the fuse and transistor with out checking the rest of the circuits out it probably blew the fuse again because the transistor would have taken out more circuitry then just its self!
which actually sounds similar to the problem with my Tascam. On my Tascam, a transistor has blown and it's likely there are other failed components too. Is it possible for you to trace back through the circuit with a multimeter and 'scope checking for faults? Then if you find something that doesn't work, replace it and see if it works. If it doesn't continue tracing back through the circuit until you find the next failed component and so on. I think that's all you can do. |
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AIWA Music System.
