AYRE K-3 - Manual (Page 17)

The condition of the fuse can be determined by a visual
inspection, although an ohm-meter provides a more reliable
method. If in doubt, substitute the spare for the operating
fuse. If the spare fuse also blows, do not attempt further
repairs.
Always use the correct fuse! /LQH9ROWDJH )XVH5DWLQJ[7LPH'HOD\
100 V . . . . . . . . . . . 1 A
120 V . . . . . . . . . . . 1 A
230 V . . . . . . . . . 500 mA
There are no user-serviceable parts in the Ayre K-3x. If the
preamplifier still does not operate, bring the unit to your
dealer for assistance.
Do not remove the power supply cover.
Hazardous voltages may exist inside the unit.
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