Teac X-3 Service Manual

X-3
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 (forward
direction) or rewind (reverse direction) modes starting at the be-
ginning of the tape, the tape does not touch the upper or lower
reel flanges, If it does, fine-adjust accordingly.
Standard Empty Reel
ft} fl
Reel Table
Fig. 2-8
2-8 TAPE SPEED
1.
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. 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.
. Using a 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.
FREQUENCY COUNTER
wow & FLUTTER METER
DECK
under TEST
T4083
Fig. 2-9
Motor Servo P.C.B.
Fig. 2-10
2-9 WOW AND FLUTTER
(See Fig. 2-9)
PLAYBACK
1. Connect a wow-and-flutter meter to the deck as shown in Fig.
2.
2-9.
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.
. 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 a TEAC YTT-8013 test tape and record a 3000-Hz signal
On it in both HIGH and LOW speed settings and at the beginning
and end of the tape, and while recording the signal, simultaneous-
ly monitor the signal from the play head by setting the MONI-
TOR switch to the TAPE position (raised position).
. The wow-and-flutter meter should indicate a reading of no more
than 0.08% (WRMS) in the HIGH speed setting and no more
than 0.15% (WRMS) in the LOW speed setting.

Teac X-3 Specifications

General

Brand	Teac
Model	X-3
Category	Tape Deck
Language	English