8. PROTECTION CIRCUITS
Your REFERENCE405 amplifier is protected against both overheating and short
circuits by means of the following circuits:
0 Main power supply fuses (2 at 20 amps each)
0 Smart Power Supply Thermal Rollback activating at 85OC.
0 A fail-safe thermal protection circuit activating at 95OC.
0 Speaker over-current protection relays (on the 4 x 25 watt channels).
Your amplifier also incorporates an innovative Fault Diagnosis system that
identifies a blown power supply fuse.
0 If you experience blown main power fuses, DO NOT increase values beyond
20 amp (each) fuses.
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