#105

Picked up this pair of studio monitors for free. Both powered up, but had some problems. One of the speakers had some output, but form tweeter only. The problem turned out to be with a corrosive glue, which was supposed to keep components from vibrating. The glue was scraped off, the board was cleaned with alcohol, a few corroded components were replaced and a couple of bad electrolytic capacitors were found and replaced. Both amplifiers were tested with a function generator and oscilloscope. Unfortunately, it turned out that one of the tweeters is dead. Perhaps a malfunctioning amplifier put out DC voltage and killed it. No replacement was found so far. Part number is TWTK00012.