Filter
Top Products
OPERATION
PROTECTION CIRCUITRY
There are no fuses in the KSA. The amplifier is protected by a series of non-
intrusive, opto-coupled circuits that constantly evaluate the amplifier’s
operation. Appropriate protective action exists for DC conditions, short
circuit, oscillation, AC power anomalies, high ground resistance and out-of-
phase ground. Collectively, the protection circuitry is designed to avoid
damage to the amplifier or speakers caused by other defective components,
faulty wiring, mishandling of the system or amplifier failure. When the
protection circuit is engaged, the amplifier will shut off and short its output.
The amplifier can be turned on after resolving either the input or output
problem.
SIMPLE TROUBLE-SHOOTING STEPS
Follow these steps when trying to resolve the cause of potential amplifier
related failure. If the amplifier will not turn on, or stay on:
1. Disconnect all input and output connections. Once this is completed, try
turning the amplifier on.
If the amplifier does not come on, check the circuit breaker on the back
panel. If the circuit breaker has popped out or appears to be more extended
than usual, reset the breaker switch by pressing it back in. If the amplifier
still does not come back on, call KRELL.
If the amplifier does not come on and the circuit breaker on the back of the
unit seems normal, check the house circuit breaker or fuse for the power
outlet associated with the amplifier.
NOTE: When turning the amplifier on and off between cable checks, let the
amplifier settle for at least 45 seconds before turning it back on.
2. If the amplifier turns on and appears to work properly again, turn the
amplifier off and reconnect the output speaker cables for one channel only.
If the amplifier turns on normally, reconnect the other channel output
speaker cables.
PAGE 18