Teac X300R - Page 6

X300R/X300
2-7
REEL
TABLE
HEIGHT
1.
As
a
general
reference,
the
height
of
the
reel
table
should
rough-
ly
correspond
to
a
distance
of
38
mm
(1-7/16")
between
the
chassis
of
the
deck
and
the
rubber
mat
on
the
reel
table.
If
check-
ing
reveals
any
large
deviation
from
this
value,
loosen
the
two
ad-
justment
screws
on
the
reel
table,
adjust
the
height,
and
retight-
en
the
screws.
.
For
fine-adjustment,
check
that,
while
in
fast-forward
or
rewind
modes
starting
at
the
beginning
of
the
tape,
the
tape
does
not
touch
the
upper
or
ower
reel
flanges.
If
it
does,
fine-adjust
ac-
cordingly.
7 Standard Empty Reel
Reel Table
LI
aS
IES, Boe
aa SR BSS ea
Fig. 2-8
2-8 TAPE SPEED
NOTE: Conduct the following steps in both forward and reverse
play modes.
. Connect a frequency counter to either OUTPUT jack. (See Fig.
2-9).
. Load a TEAC YTT-2003 test tape containing a 3000-Hz test
tone, and set the SPEED switch to HIGH (19 cm/sec or 7-1/2
ips).
. Play the middle of the test tape and adjust the HIGH speed trim-
mer resistor until the frequency counter indicates a reading of
3000 Hz (+5 Hz). See Fig. 2-10. (CAUTION: Use an insulated
screwdriver to prevent shorting.)
. Playing the tape at both the beginning and the end, check that
‘the tape speed does not vary any more than the limits prescribed
in the specifications, so that there is never a total deviation of
more than +30 Hz from the 3000-Hz test tone, nor a drift of
more than 20 Hz at any given time.
. Usinga TEAC YTT-2002 test tape, repeat steps #3 and #4 above
with the SPEED switch set to LOW (9.5 cm/sec or 3-3/4 ips). In
step #3, the speed may be adjusted for the proper initial setting
by using the LOW speed trimmer resistor.
DECK wow @ FLUTTER METER
under TEST
Trees
Fig. 2-9
° High Speed °°
sq—EF.
Ds o©
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Motor Servo P.C.B.
®
000090990
Fig. 2-10
2-9 WOW AND FLUTTER
PLAYBACK
NOTE: This paragraph applies to both forward and reverse play
modes.
1. Connect a wow-and-flutter meter to the deck as shown in Fig.
2-9.
2. Load a TEAC YTT-2003 test tape to check the wow and flutter
when the deck is set to HIGH speed, or a YTT-2002 test tape to
check when set to LOW speed.
3. Play the beginning and end of the respective test tape for each
speed setting. The measured wow and flutter should be at least
0.06% (WRMS) and 0.12% (RMS) for the HIGH speed setting
and at least 0.10% (WRMS) and 0.15% (RMS) for the LOW
speed setting.
OVERALL
4. Load TEAC YTT-8013 test tape and record a 3000-Hz signal
on it in both HIGH and LOW speed settings and at te beginning
and end of the tape, and while recording the signal, sirnultaneous-
ly monitor the signal from the play head by setting the MONI-
TOR switch to the TAPE position (raised position).
5. The wow-and-flutter meter should indicate a readiny of no more
than 0.08% (WRMS) in the HIGH speed setting aad no more
than 0.15% (WRMS) in the LOW speed setting.
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