Teac A-3340S - Page 20

REEL HEIGHT ADJUSTMENT ———_---_____—_... ______-
Reel height adjustment is required only if a motor has been re-
placed or if tape rubs excessively against the reel flange.
Adjustment is accomplished by the set screws as shown in the
illustration below. Reel turntable should be adjusted using
standard 7" reels. With a tape threaded on the machine, position
the reel-height for smooth tape travel.
Tape should wind
evenly on Reel
Set Screws
T- 178
Fig. 9-5 Reel Height Adjustment
FLUTTER ay
Flutter
should
be
measured
in
playback
mode
using
a
TEAC
flutter
free
tape
YIT-2004
(15ips),
2003
(7-1/2ips)
and
Meguro
model
MK665B
flutter
meter,
Measurement
of
flutter
should
be
made
in
accordance
with
NAB
standards.
Values
obtained
with
different
standards
or
equipment
cannot
be
compared.
Flutter
should
not
exceed.
15
ips
:
0.15%
(RMS)
7-1/2 ips: 0.18% (RMS)
These figures apply to any tape position and direction {such as
full take-up reel, full supply reel or about mid point).
If
there
is
excessive
wow
and
flutter,
examine
the
pinch
roller,
belt,
motors,
capstan
shaft,
and
reel
rest
for
"grease",
"oil".
"dirt"
and/or
"wear",
Also
examine
the
tape
counter
assy
for
eveness of operation.
TAPE SPEED - -
: , : : Use to
The
tape
speed
should
be
measured
TEST
UNIT
Tape
Speed
using TEAC flutter free tape, Model
YTT-2003 (7-1/2ips), YIT-2004 (15 ips).
“These tapes contain a highly accurate
3 kHz tone. Connect a digital fre-
quency counter to either line OUTPUT
jack. The indicated frequency should
be
3000
Hz
(+30
Hz
or
less)
for
both.
a1
speeds.
4»
=
Fig.
9-6
Test
Equipment
Set-up
FLUTTER FREE TAPE
WOW METER