8-44
HDW-750/750CE V1
Check Procedure
1. Alignment tape playback
Play back the alignment tape HR2-1A (from 00 :
00 to 15 : 00).
2. CUE/TC head position check
(1) Confirm that the relationship between the
CTL pulse fall-down edge and the TC signal
rise-up edge satisfies the specifications.
If the specification is not satisfied, perform
step 3 and the subsequent steps.
(2) Repeat changing the mode from the EJECT
state to the PLAY state a few times and
confirm that the specification is satisfied.
If the specification is not satisfied, perform
step 3 and the subsequent steps.
(3) Repeat changing the mode from REV
x
3 to
PLAY a few times and confirm that the
specification is satisfied.
If the specification is not satisfied, perform
step 3 and the subsequent steps.
How to enter the REV
x
x
x
x
x
3 mode
After pressing the PLAY button, press the
REW button. (Both the PLAY and REW
buttons on the keyboard turn on.)
Adjustment Procedure
3. CUE/TC head position adjustment
(1) Loosen the fixing screw of the CUE head
mounting plate by 1/4 to 1/2 turn.
(2) Insert a flat head (
_
) screwdriver tip into the
notch of the CUE head mounting plate .
(3) Adjust the CUE/TC head position with
screwdriver until the specification is satisfied.
(4) While maintaining the screwdriver setup as
step (3), tighten the screw.
Standard tightening torque :
10
x
10
_
2
N
.
m (1.0 kgf
.
cm)
4. CUE/TC head position recheck
Recheck it following steps 1 and 2.
50
65
35
50
50
50
65
35
50
50
PB CTL
waveform
(CH-1)
PB TC
waveform
(CH-2)
Specification : A=0
±
400
u
s
Fixing screw
Notch
CUE/TC head mounting plate
0
±
400 usec
8-2. Tape Run System Adjustment
