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AZIMATH
ADJUSTMENT
PLAYBACK
HEAD
1;
Connect a VTVM
to the LINE OUT terminal of each
channel.
. By using an Angle Adjusting Standard Tape (7-1/2
ips, 7 kHz), playback 7 KHz signals at 7-1/2 ips tape
speed and turn the Adjusting Screws @ and @ shown
in Fig. 15 so that the max. output is obtained at both
channels.
In case
it is difficult to adjust the slit
angle between CH-1 and CH-2, seek for the middle
point. (The measuring circuit is shown in Fig. 16)
RECORD HEAD
AS
Adjust its angle after adjusting the Playback Head
Angle.
. Connect a Standard Oscillator to the AUX IN terminal
of each channel and a VTVM to the LINE OUT terminal.
. Keep the oscillation frequency
at 15~20kHz
and
the recording level lower by 10 dB than the standard
recording
level, and place the unit in the RECORD
mode.
. Record the specified signal with the Record Head
while playing it back with the Playback Head, and
Playback
Amplifier
adjust the Record Head Adjusting Screws © and ©
so that each output becomes maximum.
NOTE: At this time, do not adjust the Playback Head.
(The measuring circuit is shown in Fig. 17)
Cautions in Measurement:
Move finely the Adjustment Screws @ and ©,
@® and @ alternately.
* After
the adjustment,
lock the
screw
heads
with
lacquer.
Recording
Amplifier
Playback \ b-—=
Amplifier}
(VTVM
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