3.4 Fuse Replacement
The fuse on the Vt-747sp is located within the
AC plug assembly on the back of the unit. A fuse
can blow if the AC selection is not selected
properly or if there is a sudden surge of AC to
your Vt-747sp.
Your Vt-747sp uses a 250V, 1 amp slow blow
fuse.
To change the fuse:
1. Make sure there is no AC cable connected
to the AC inlet.
2. Insert a small flat-head screwdriver tip into
the voltage selector cavity. Carefully lift-open
the hinged cover from left to right.
3. Pull fuse casing (labled with an arrow)
straight out.
4. Replace fuse in casing. Insert casing into
casing slot. Close AC voltage selector cover.
3.5 Rack Mounting and Cooling
The Vt-747sp is designed to be mounted in a
standard 19" equipment rack. As vacuum
tubes and Class A circuitry can generate heat,
it is highly recommended that an additional
rack space above and below the unit be kept
empty to allow for adequate cooling. Avalon
Design has developed 1U ventilation panels
(VP-1) specifically to keep your rack-mounted
gear cool.
Page 12 Avalon Vt-747sp Operation Manual
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