Bose 901 Series II User Manual
Page 7
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THE NEXT SEVEN STEPS ARE TESTS WHICH MUST BE PERFORMED TO INSURE PROPER
OPERATION AND CORRECT INSTALLATION.
Place the TAPE switch on the Equalizer in the MONITOR position. Place the 3 frequency contour
controls so that they coincide with the indicated dots. These are the "NORMAL” positions of the
Equalizer controls.
Place the TAPE MONITOR or TAPE FUNCTION switch on your control amplifier in the NORMAL
or OUT position.
Turn the entire system on. 8e sure that the Equalizer is plugged into an operating AC outlet by
observing that the pilot light on the Equalizer is on.
Play your system as you normally would, using a phonograph or AM-FM source (NOT a tape recorder)
to be sure it is operating properly.
This tests the rest of your system, since the Equalizer has not yet been switched into the system.
Any errors must be corrected before proceeding further.
Turn the BALANCE control of the control amplifier to the extreme right and left to check for
correct placement of the right and (eft channels.
With the system playing, move the TAPE MONITOR or TAPE FUNCTION switch on your integrated
amplifier, receiver, or preamplifier to the MON ITOR or "ON" position. The sound should stop. This
TAPE MONITOR switch on your integrated amplifier, preamplifier or receiver should be left in this
position. If the sound does not stop, recheck Steps a through I.
Place the Equalizer TAPE switch in the NORMAL position. The sound should return. If the sound
does not return, and the Equalizer pilot light is on, then the Equalizer is probably connected in
correctly. Recheck Steps a through I.
NOTE: If the TAPE MONITOR switch of your control amplifier is later switched out. the system
will continue to play but the Equalizer will no longer be functioning in the circuit. Since the system
will be playing and the Equalizer pilot light will be on. it will be possible, especially at low-volume
levels or with certain musical selections, for you to be unaware that the Equalizer has been removed
from the circuit. Check the TAPE MONITOR switch on your control equipment periodically to
make certain it is still in the ON position.
If you do not have a tape recorder, the installation of the 901 system is now complete, and the system
is operating properly. If you do have a tape recorder, its connection to the system will be explained
in Section III D.