|Replacing a transistor
Some of you readers might already know that my Sansui 771 tuner-amp doesn't quite function the way it should. The amplifier side does work perfectly but the tuner's +12 volt supply doesn't always stick to its preset value, instead it drops down to +6 volts or less. I traced the problem to a (2S)D330 transistor in a TO-220 package on the PSU board.
Now, I'll disassemble the tuner-amp, take pictures on the way, and describe the procedure here.
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And it works... Current Mood: happy