Sony DNW-A100 Maintenance Manual page 492

7-1-6. AT Head Height Check and Adjustment
Check
4. Turn the Power On
5. Play Back the Alignment Tape
Play back the 1 kHz, 0 VU signal portion (8:00 to
10:00) on the CR8-1A/PS.
6. Check the AT Head Height
(1) Check that both levels in CH-1 and CH-2
decrease when portion A of the tape shown in
the figure is pressed down.
If both levels increase, perform step 7.
(2) Check that both levels in CH-1 and CH-2
decrease when portion B of the tape is pushed
up.
If both levels increase, perform step 8.
7-32
. Alignment tape : CR8-1A/CR8-1A PS (8:00 to 10:00)
TG-3 (Exit guide)
A
B
<Audio output waveform>
CH-1
CH-2
Spec. : The portion C widens when pressing down and pushing up the
alignment tape.
AT Head Height Check
AT head
C
DNW-A100/A50/A45
DNW-A100P/A50P/A45P