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USE OF AUXILIARY
PROGRAM
SOURCES
Auxiliary program
sources such as an 8-track cartridge
tape player, sound track from a TV set, or a second radio
tuner may be connected to the AUX 1 or AUX 2 inputs.
1. Set the FUNCTION
selector at position AUX
1 or
AUX 2.
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2. Operate the program source equipment as usual.
3. Use the VOLUME, BALANCE, BASS, TREBLE, etc.
controls to obtain the desired volume level and tonal
—
quality.
NOTES:
USEFUL HINTS FOR OPTIMUM OPERATION
1. When two turntables (or two tonearms mounted on one turntable) are
LEVEL CONTROLS on the rear
connected to the PHONO
I and PHONO 2 inputs, one will probably
=
LEVEL CONTROL——
sound a little louder than the other, This is due to different phono
| PHONO
2
AUX 2
e
bed
Connect the louder one to the PHONO 2 inputs, then turn down the
(SmV) (2.5mV} (1.5) (1 SOmv)
PHONO 2 LEVEL control on the rear panel, Switching the
FUNCTION
selector alternately to PHONO 1 and PHONO 2, balance the turntable
volume levels by adjusting the PHONO 2 LEVEL control, You can then
conduct comparative listening tests with the two turntables without
having to change the volume setting each time.
3. Be careful not to position the microphones close to the speakers and
not to turn up the volume too high, as this may cause howling. It is also
advisable to set the TONE DEFEAT
switch at ON when using micro-
phones.
4, If a program source is connected to the AUX 2 inputs, its sound volume
can be balanced with that of other program sources (tuner, turntable)
by adjusting the
AUX 2 LEVEL control on the rear panel. Switch the
FUNCTION selector alternately at AUX 2 and TUNER, for example
and adjust the AUX 2 LEVEL control until about the same volume is
obtained from both sources.
THE PROTECTION CIRCUIT
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When you turn on the SA-8100, the protector pilot lamp
will light and the speakers will remain silent for the first
3 to 6 seconds. This is caused by the protector circuit
which keeps the output amplifier off until all components
have
attained
a state of completely stable operation.
Otherwise, unpleasant noise and, in extreme cases, dam-
age to transistors and speakers might occur in the first
I
few seconds.
.
If the protector pilot lamp remains lit and the speakers
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silent after 6 seconds, turn off the power and check the
speaker connections and lead wires for a possible short-
circuit. If the protector lamp lights during play and you
hear
a repeated clicking of the built-in relay, also turn
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off the power and check the speaker connections. The
trouble may also be caused by very low speaker imped-
ance — note that, when two pairs of speaker systems (A +
B) are used, each system must have an impedance of at
least 8 ohms. The protector circuit resets itself auto-
matically, so after you have repaired the trouble, the am-
plifier will resume normal operation.
Fig. 8
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