Panasonic TX-21GV1, Руководство по обслуживанию

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ADJUSTMENT OF THE AUDIO AZIMUTH
1) Play back the ALIGNMENT CASSETTE TAPE (NTSC:DN2 (SP 7KHz), PAL: DP2 (SP 6KHz))
2) Observe audio signals on an OSCILLOSCOPE.
3) Turn the A/C HEAD AZIMUTH SCREW to obtain the maximum audio output signal (-9 ~-3dBm) Fig.44.
HEIGHT ADJUSTMENT OF A/C HEAD
1) Play back a T-120 TAPE.
2) Make sure that the gap is 0,25mm between the lower end of TAPE and that of A/C HEAD Fig.45.
3) When the gap is larger than 0,25mm, turn the A/C HEAD HEIGHT ADJUST NUT anti-clockwise. When the gap is smaller
than 0,25mm turn it clockwise. Repeat this procedure until 0,25mm is obtained.
Audio control head assembly adjustment (Height adjustment)
Fig.45.
Audio control head assembly
Fig.44.
GAP
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