Operation Manual

LEFT CHANNEL
COMMON
RIGHT CHANNEL
Figure 6. Stereophone Plug
STEREOPHONES
This jack accepts the standard 3-conductor phone
plug used on standard stereo headphones (see
Figure 6). It is internally connected to the power
ampl ifier section through isolation resistors to
provide adequate sound level with popular low
impedance headphones as well as with high
impedance ones. Two or more sets of headphones
may be used with the aid of "Y" connectors. The
headphone jack output is not affected by the
MAl N-SPKR-REMOTE switches.
SOME SUGGESTIONS ON USING TAPE
RECORDERS WITH YOUR MODEL 2230
There are several ways to connect and operate tape
recorders with your receiver. To avoid confusion in
the following discussion, reference to "tape
monitoring" assumesthat the recorder is equipped
with separate record and playback heads and
separate record and playback preamplifiers. To
further simplify this discussion, a tape recorder
normally connected to the rear panel facil ities will
be referred to as the "main" recorder. A separate
recorder normally connected to the front panel
jacks will be referred to as the "external" recorder.
This general arrangement is illustrated in Figure 7.
RECORDING AND PLAYBACK
The simplest system involves only one ta.pe
recorder, whose inputs are connected to the TAPE
OUT jacks (on the rear panel) and whose playback
outputs are connected to the TAPE IN jacks. An
equally simple arrangement using the front panel
facilities involves connecting the line inputs to the
dubbing OUT jack and the playback outputs to the
dubbing IN jack.
RECORDING
To make a recording, set the selector switch to the
desired program source and put the recorder into
the "record" mode of operation. With the TAPE
MONITOR pushswitch in the "out" position, the
original program source will be heard. By depres-
sing the TAPE MONITOR pushswitch (monitor),
the "results" of the recording while it is in
progress, will be heard. A word of caution: With
the tape recorder in the record mode, be careful
not to place the selector switch in the "TAPE"
position when the TAPE MONITOR pushswitch is
"out." Doing this feeds the recorder's output
signals back to its input terminals, establishing a
reverberating loop. If the recorder's playback level
happens to be set higher than its record level, the
resulting echo or "howl" will rapidly increase in
volume level. No harm will be done to the recorder
or the receiver, but the audible effect from the
loudspeakers can be annoying.
PLAYBACK
To listen to a tape already recorded, put the
recorder in the playback mode of operation and
turn the selector switch to "TAPE". When playing
tape on an external recorder, the recorder's
playback outputs should be connected to the __
dubbing IN jack on the front panel. When playing a
tape on the main recorder, m~ke sure not~ing is
plugged into the dubbing IN Jack,.othe.rwlse the
main recorder's playback outputs Will be Internally
disconnected in the receiver.
MAKING TWO RECORDINGS
SIMULTANEOUSLY
Th is can be done by connecting two tape recorders
to the receiver, as shown in Figure 7. To monitor
the main recorder, pull the plug out of the dubbing
IN jack and depress the TAPE MONITOR push-
switch.
RECORDING A LONG-DURATION PROGRAM
With two tape recorders connected to the Model
2230 as shown in Figure 7, a continuous recording
can be made without losing parts of the program
during reel changes. For example, with the selector
switch set to the desired program source, and the
TAPE MONITOR pushswitch in the "out" po-
sition, start the recording on the main recorder,
then prepare the external recorder to begin record-
ing before the main recorder is about to run out of
tape. As soon as the external recorder is started,
ample time will be available to reload the main
recorder in preparation for further recording. This
process can be repeated indefinitely with both
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