Protection Modes And Indicators - Classe Audio CA-100-101 Service Manual

Protection Modes and Indicators

The front LED shows the status of the amplifier. When starting up normally, the CA100 and CA101 will show a
FLASHING RED LED for about 15 seconds and if all is normal, the LED will go SOLID RED. If there is a fault,
the LED will go to a FLASHING GREEN LED. The CA100 and CA101 are equipped, except for some early
production models, with four rails protection fuses. In the event that one or more of these fuses would blow,
the technician will first need to identify and cure the cause of failure (please report troubleshooting guide).
When the cause has been identified, disconnect the unit from the system including the AC power. Remove the
top cover and look for damaged or burned components. If no other components than the fuses appear to be
damaged, the technician can then replace the broken fuses with the same value and rating (please report to
fuses section). The rail fuses are located on the capacitor board. When replacing fuses, please make sure that
the fuse holder are holding the fuses very tightly. A loose fuse holder can translate into distortion on top of the
signal.
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