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the line output level of both channels do
not ﬂuctuate, (maximum allowable ﬂuctuation
within +0.5/~O dB) fix screws (J) and (K)
to maintain this condition.
0 At reverse playback mode, make the same
adjustment as outlined above until the line
output level of both channels do not ﬂuctuate.
2) COMBO Head
a) Connect an audio frequency oscillator to the
line input terminals, and connect a high sensi-
tivity V.T.V.M. to the line output terminals
and load a blank tape.
b) Set the Tape Speed Switch to 7-1/2 ips. (19
cm/sec.) and set the monitor switch to TAPE
c) Record a 16,000 Hz audio frequency at —10
dB recording level.
d) At recording mode, turn Azimuth Alignment
Adjustment Screw (B) shown in Fig. 18 to
left and right until the line‘ output level of
both channels is maximum and does not
e) After completing adjustment in Item d) above,
adjust gap side of recording head by moving
installation angle (L) shown in Fig. 18 to
left and right until the line output level of
both channels do not ﬂuctuate (maximum
allowable ﬂuctuation within +0.5/—0 dB) when
tension is applied to the supply reel side.
3. To obtain best results, repeat adjustments
outlined in paragraphs 1 and 2 above 2 or 3
times. New blank tape should be used when
making these adjustments.