Tascam 3030 - 2-16 Head Alignment; 2-16-1 Head Mounting (Record and Playback Heads); 2-16-2 Playback Head Adjustment; 2-16-3 Record Head Adjustment

^
2.16
HEAD ALIGNMENT
There is no
need for head height and tilt adiustments
because
the
record and
playback
heads
of 3030
are a semi-fixed
type
(erase
head
fully-fixed).
2-I6.I
HEAD
MOUt{TIttIG
(BECOBD
AND
PLAYBACK
HEADS)
1. Refer
ro
Fig.2-23.
2.
With head mounting screws,
mount
heads to
head mounting
plate.
Attach shield
case
to the
playback
head.
3.
Mount
head as'y to
head base using
mounting screw
and mount
tangency
adjustment screw.
4.
Mount azimuth adjustment
screws.
2.I6.2
PTAYBACK HEAO
AOJUSTMETTT
1.
See
Fig.
2-24
tor
necessary
connections.
2. Set
the 0UTPUT switch
to
REPR0.
3.
Run the test t3pe TEAC
YTT-I003 in
play
mode to
reproduce
the
400H2
signal
on the
tape.
4. Slightly
loosen
the
mounting screws
which
hold
playback
head
in
place
and adjust
the tangency using
adiustment screws,
for
maximum
output.
When the maximum
output
is
attained,
retighten both
mounting screws.
5.
Play the l6kHz
signal
on the
tape and adiust
the azimuth
of
the
playback
head using adjustment
screws
for
les
than 45"
of
phase
difference between
the two channels
(see
Fig.
2-251.
I{OTE: Azimuth
adjustment should
be
completed
by turning
adjustment screws
in
tightening direction
(clockwise).
6.
Set the
PLAYBACK
HEAD
wrritch
to
4T and
perform
thesame
tangency
and azimuth adjustment
procedures
to
4 Track
play'
back
head.
2-I6-3
RECORO
HEAD ADJUSTMEIIT
Proceed to
record head adjustment
only
after
playback
head
adjustment
has been completed.
1.
See
Fig.
2-24
for
necessary connections.
2. Set
the 0UTPUT switch
to REPB0.
3.
Load
the blank
test tape AMPEX
456
and
record
a 400H2
-10dBV
(316mV)
signal
in
recording
mode
to reproduce
it
simu
ltaneously.
4.
Adjust the tangency
of
the recording head as
in step
4
under
paragraph
2-1
6-2.
5. Simultaneously
record and reproduce a l
kHz.
-20dBV
(100mV)
signal and adjust
the azimuth
of the recording
head using adiust-
ment screws
for less than 0o
of
phase
difference
between
the
two channels
(see
Fig. 2-25).
tt0TES:
oAzimuth
adjustment should
be completed
by turning
'
adiustment
screws
in tightening
direction
(clockwise).
rBe
carefull
not to
confuse
the
bias signal
(150kHz)
in measurement.
2-16
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