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HI. Recording Level Indicator
This adjustment
must
be mode
after Gain
Balance
adjustment.
1. Using an audio signal generator, feed 1k Hz 0.4 mV signal to the
MIC jack of channel 1.
replaced. Therefore, if the original head is replaced, use the follow-
ing procedure to align head azimuth (see Figure
13).
1. Load a special 12k Hz azimuth alignment tape on the Left reel
base.
2. Operate the unit in Record position.
2. Turn Tone controls to maximum position. Connect
a VTVM
3. While observing the meter, adjust SVR-2 so that the needle of
across either R43 or R93.
the left VU meter points to the border between the red and black
3. Shift the Speaker selector switch to its OFF position.
zones.
4. Turn the unit on. Depress Play button and turn up the Volume
4. Reconnect the audio generator to the
MIC jack of channel 2 and
control of the channel being measured until its pointer is at the
make the same adjustment for SVR-3.
boundary of the black and red areas on the VU meter.
Very slowly turn the azimuth
adjustment screw
(ref. No.
¥ 76)
HEAD
ADJUSTMENT
until maximum reading is obtained; this will be indicated by the
Vertical positioning
meter deflection reaching a maximum, after which it will decrease
The height of the Record/Play head has been carefully adjusted at
as the screw is continuously turned in the same direction.
If the
the factory. Therefore, no further adjustment should be required.
meter reading returns to mid-scale position. It is not neccessary
Azimuth positioning
to repeat the adjustment procedure for the other channe! since
Record/Play head azimuth has been correctly adjusted at the factory
azimuth
agreement
between
left and right channels
is held to
and should not require further attention unless the head has been
close tolerances.
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