Teac A-6010GSL - Playback Performance; Playback Head Azimuth Adjustment

PLAYBACK PERFORMANCE
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Fig. 7-1 Playback Circuit Simplified
PLAYBACK HEAD AZIMUTH ADJUSTMENT
Coarse Adjustment
1.
2.
3.
4.
Connect the test set to either LINE OUT jack.
Thread a TEAC test tape YTT-1003 on the unit with MONITOR switch
to TAPE position.
Depress forward button ( p ) and play the 15 kHz test tone in
section 2 of the test tape.
Slowly rotate the azimuth screw until maximum indication is indicated
on the level meter.
NOTE: If during playback, a slight pressure on the heads re-
sults in a rise of the reading of the level meter, head MECHANICAL
ALIGNMENT readjustments should be accomplished.
Fine Adjustment
CAUTION: Do not make large corrections during fine adjustment,
turn the screw 1/4 of a revolution or less.
It is absolutely essential to accomplish the coarse adjustment
before using this method to avoid phase errors larger than 45°.
. Connect the test equipment as shown in fugure.
. Play a 10 kHz signal and adjust the
azimuth screw until the oscilloscope
shows that the signals are less than
45° in phase.
Secure the azimuth adjustment screw
with LOCTITE and apply the above pro-
cedure to the remain playback head.
Fig. 7-2 Fine Adj. Set-up—