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A customer brought in a
Sonic Frontier Power 3 power amp with a broken rotary
switch. The amplifier also has excessive static
noise.
The problem was caused by a
faulty rotary switch, and a ground wire which had fallen
off due to a weak solder point.
However, the repair was very time consuming as the
switch was inaccessible and the entire back panel had to
be disassembled. A rather unusual industrial
engineering design. What appeared to be a 20
min. job turned out to be 6 hours.
Estimated Repair Cost: $
180
Actual Repair Cost: $ 180
Turnaround time: 4 days.
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