User guide
19
Maintenance
Servicing
CAUTION: Your SP20 contains sufcient levels of voltage and current to be
lethal. Do not tamper with a component or part inside the unit. Refer any
needed service to your authorized Audio Research dealer or other qualied
technician.
The vacuum tubes inside your SP20 are quality tubes and with normal
use should not need to be changed for approximately 4,000 hours of use.
Replacement tubes should be of equivalent quality and are available from
Audio Research. Note that tube numbers (V1, V2 etc.) match printed
numbers next to tube sockets on circuit board.
Should service be necessary, please contact your Audio Research dealer,
or Audio Research Customer Service at 763-577-9700.
Cleaning
To maintain the new appearance of this unit, occasionally wipe the front
panel and top cover with a soft, damp (not wet) cloth to remove dust.
A mild, non-alkaline soap solution may be used to remove ngerprints or
similar smudges. Cleaners containing abrasives should not be used as they
will damage the anodized nish of the front panel. A small, soft paintbrush
is effective in removing dust from bevels, the recessed nameplate and other
features of the front panel.
Disposal and Recycling Guidelines
To dispose of this electronic product, do not place in landll. In accordance
with the European Union Waste Electrical and Electronic Equipment (WEEE)
directive effective August 2005, this product may contain regulated materials
which upon disposal require special reuse and recycling processing.
Please contact your dealer or importing distributor for instructions on
proper disposal of this product in your country. Or, contact Audio Research
Corporation (763-577-9700) for the name of your importing distributor and
how to contact them.
Packing and shipping materials may be disposed of in a normal manner.