6-1-6. AT Head Height Check and Adjustment
Check 4. Turn the Power On
. Alignment tape : SR2-1/SR2-1P (00:00 to 15:00)
5. Play Back the Alignment Tape Play back the SR2-1/P (0:00 to 15:00). 6. Check the AT Head Height (1) Check that the level of CH-2 remains unchanged when portion A of the tape is lightly pushed downward. If the level is changed, perform steps 7 and 8. (2) Check that the level of CH-2 decrease when portion B of the tape is lightly pushed up. If the level increase, perform steps 7 and 8.
<PB LTC output waveform> B AT head TG-3 (Exit guide) A
CH-2 (PB LTC)
Spec.1 : Level remains unchanged by pushing the tape downward. Level decreases by pushing the tape upward.
AT Head Height Check
DNW-75/75P
6-31
