Sansui TU-505 - Simple Maintenance Hints; Outdoor FM;AM Antennas; Power Fuse Replacement; Rear-Panel AC Outlet

SIMPLE MAINTENANCE HINTS
OUTDOOR FM/AM
ANTENNAS
In areas remote from broadcast stations or blocked
by such obstacles as mountains and large buildings,
the ‘T’ shaped FM antenna supplied and the built-
in AM ferrite bar antenna may sometimes fail to
give you clear receptions. To improve the quality
of reception in such areas, try the following meas-
ures.
Outdoor FM Antenna: Install a commercially
available FM outdoor antenna with at least five to
seven elements. While such antenna may be con-
nected to the tuner either with 300-ohm balanced
feeder cable or 75-ohm unbalanced coaxial cable,
the use of the latter is recommended because of its
better signal transmission capability, if your budget
allows at all. An impedance matching transformer
may be sometimes required to connect such antenna,
and this should be found out at the time of purchas-
ing it. After connecting the antenna, adjust its
height and direction so as to obtain the best recep-
tion while actually listening to your favorite FM
station.
Outdoor AM Antenna: Connect the PVC cord
supplied to the AM-A antenna terminal on the
tuner’s rear panel, then extend it outside a window
or on the roof,
SHOULD THE POWER FUSE
BLOW
If the dial indicator should fail to glow and your
TU-505 remains dead when you turn on the Power
Switch, it is possible that its power fuse has blown.
If this happens, disconnect the power cord from the
AC outlet and examine the power fuse on the unit’s
rear panel. If you find it blown, replace it with a
new glass-tubed fuse of the rated capacity (0.5-
ampere for 100/117 volts, 0.3-ampere for 220/240
Sy) ce 7:
volts).
Never use a fuse of a
different capacity or
a piece of wire, even
as a stopgap measure,
or serious danger
could result.
LTD.
en?
ED Reploce with same
a
type =
O.5A-250¥ fuse at 100/117¥
O3A-2509 fuse at 220/240¥
REAR-PANEL AC OUTLET |
The AC outlet marked ‘UNSWITCHED” on the
rear panel can be used like any other outlet for AC
house current. The voltage delivered at this AC
outlet is the same as the power supply voltage
used.
This AC outlet has a power capacity of 150W.
Before you connect any appliance to it, be sure that
it is adjusted for use at the same power supply volt-
age, and that its power consumption is not greater
than 150W.
VOLTAGE ADJUSTMENT
Your TU-505 is adjusted to operate at the correct
power supply voltage of your area prior to ship-
ment from our factory.
Should you move after purchasing the tuner or send
it to someone as a gift, it may be necessary to
adjust the Voltage Selector. To adjust it:
1. Remove the two screws securing the name plate
on the unit’s rear panel, then remove the name
plate.
2. Unplug the Voltage Selector once, and reset it
so that the arrow mark on it faces the correct volt-
age indication.
3. Change the power fuse as well whenever the
power supply voltage has changed. For 100/117
volt operation, use a 0.5-ampere glass-tubed fuse.
For 220/240 volt operation, use a 0.3-ampere one.
About Servicing
Should anything ever go wrong with your TU-
505, or if you have any question about it,
please contact the Sansui dealer from whom
you purchased it or your nearest Authorized
Sansui Service Station.