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bcrazy's Achievements


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  1. I replaced the resistor with a 10 ohm, and also the two fmu-22s (m04 and m06) that had be "blown to peaces" Amp now plays like it did before, but i don't know what caused the problem. I'm almost a bit sorry i fixed it because i really wanted to build a 2 x ucd180 amp :)
  2. I found the resistor mr17 and diodes mo4 and mo6 burned of. The problem is on the schematic i downloaded from this forum, i can't read the value of the resistor. It looks like 10 ohms, but i'm not sure. http://www.electronics-lab.com/forum/index.php?topic=3688.0 it is on the power supply on page 15. Anyone who knows the value of this resistor?
  3. extremely distorted, can play at quite high volumes, but it seems like there's no power, no bass. I can take it to work and check with an oscilloscope. Where should i measure? At the output?
  4. hello I'm new to this forum I have a sansui au-x701 amplifier. A few weeks ago it made a nasty sound trough the speakers when turning on. Now it sound like the speakers are blown, but they are not. (i have also tried other speakers) I have checked the output power transistors and they are good. I have donwloaded a schematic from this site. My next step will be to try and check some voltages on the power supply. Anyone who has an idea what it could be? The amplifier has performed flawlessly to this point. A service manual would be wonderful Thanks in advance.
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