Sansui QS-500 - Page 13

SIMPLE MAINTENANCE HINTS
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AC Outlets
Of the two AC outlets provided on the rear panel,
the
one
marked
SWITCHED
is
controlled
by
the
front-panel
Power/Rear
Speakers
Switch.
The
other,
marked
UNSWITCHED,
is
always
‘live’
and
independent
of
the
Power/Rear
Speakers
Switch.
Their
power
capacity
is
limited,
and
it
is
prohibited
to
connect
equipment
with
a
bigger
power
require-
ment.
Before
connecting
any
equipment,
make
certain
its
power
requirement
does
not
exceed
the
power capacity limit.
Grounding
Any
noise
picked
up
by
the
connecting
cords
may
be
effectively
grounded
by
connecting
a
piece
of
PVC
(polyvinyl
chloride)
or
enameled
wire
to
the
rear-
panel
grouding
terminal
on
the
QS-500’s
rear
panel,
attaching
a
small
copper
plate
or
carbon
rod
to
the
other
end
and
burying
it
deep
underground.
The
grounding
leads
of
other
equipment
in
the
system
may
be
connected
to
the
same
terminal
to
ground
the
entire
system
at
once.
Vij,
COPPER PLATE
BURIED UNDERGROUND
Voltage Adjustment
So
that
you
may
operate
your
QS-500
in
any
part
of
the
world,
it
is
equipped
with
Voltage
Selector
Plugs.
As
it
is
set
to
the
correct
power
supply
voltage
of
your
area
in
our
factory
prior
to
shipment,
there
is
no
need
to
touch
it.
However,
should
you
move
after
purchasing
the
unit
and
find
the
power
supply
voltage
is
different,
simply
reset
the
plugs
as
follows:
1.
Remove
the
two
screws
securing
the
name
plate
on
the
unit’s
rear
panel,
then
remove
the
name
plate.
2.
Set
the
arrow
mark
on
the
Main
Voltage
Selector
Plug
to
the
required
voltage:
100,
110,
117,
127,
220,
230,
240
or
250
volts.
3.
It
the
required
voltage
is
indicated
in
red,
set
the
arrow
mark
on
the
adjacent
Sub
Voltage
Selector
Plug
to
“RED.”
If
it
is
indicated
in
white,
however,
set
that
arrow
to
“WHITE.”
4.
Change
the
power
fuse
also
whenever
the
power
supply
voltage
has
changed.
For
100-127
volt
opera-
tion,
use
a
3-ampere
glass-tubed
fuse.
For
220-250
volt
operation,
use
a
2-ampere
version
of
such
fuse.
3.
Where
the
power
supply
voltage
considerably
fluctuates,
the
Voltage
Selector
may
be
reset
to
avoid
unpleasant
side
effects
of
such
fluctuation.
Reset
it
to
the
voltage
immediately
higher
than
the
peak
of
the
fluctuation.
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230V WHITE
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240V
240V (2A)
250V RED
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