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XR-A550MD
QQ
3 7 63 1515 0
0 dB
30s
0 dB: 315 Hz, 250 nwb/m
30s
30s
315Hz
6.3kHz
10kHz
Playback Adjustment
(1) Head Azimuth Adjustment
•
Do not switch between forward and reverse operation with the screwdriver inserted.
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•
Since this adjustment determines playback Dolby NR level, perform it carefully.
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REV Azimuth Adjustment Screw
Fig.5 Head Azimuth Adjustment Screw
Recording Adjustment
(1) Bias Oscillation Frequency Adjustment
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12.5
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Fig.4 STD-331E Test Tape
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12.5k
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RECORDING
12.5k
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