Teac A-650 - Page 15

RECORD/PLAYBACK METHOD
3.
1.
2.
5-6. FLYWHEEL BEARING ADJUSTMENT
1.
2.
3.
See also Fig. 5-9
Fig. 5-10
Flywheel Bearing Adjustment
15
4.
5.
6.
7.
8.
Load a TEAC MTT-502 test tape (blank) and set the
B1AS/EQ switches in the “ 3 ” positions.
Apply and record a 3,000 Hz signal.
Rewind and play this recorded section.
Read the indication on the wow and flutter meter.
The wow and flutter value should be 0.18%' RMS max.
If the measured value is out of specification, repair
using the same methods as stated in steps 4 - 5 in the
Playback Method procedure.
5-6. FLYWHEEL BEARING
/ADJUSTMENT (Fig. 5-10)
NOTE
When using this method, adopt the maximum wow
and flutter value obtained by repeated play and stop
modes of operation. This operation is necessary to
make sure wow and flutter content between record
and playback will not be in phase to create a false
reading.
Connect test equipment to the deck as shown in Fig.
Set LINE and OUTPUT controls on the deck to obtain
convenient input and output levels.
Flyw heel
\ Thrust Adjusting Screw
Close the Cassette Holder with the Holder empty so
that the Switch Arm located on the top of the Cassette
Holder is not depressed and the Capstan Motor is not
turning.
Depress the PAUSE Button to engage the Play Sole 
noid.
By using a slot screwdriver with small blade, adjust the
Thrust Screw so that there is a gap of 0.1 to 0.3 mm
between the lower end of the Capstan Shaft and the
well of the Flywheel Bearing. This adjustment can be
made by pushing the Flywheel toward or away from
the front of the deck.
VISUAL INDEX (for 5-6, 7, 8, 11 Sections)
To readily locate the specified checkout areas described in
5-6, 7,8,11 Sections, refer to Fig. 5-9.
5-11. EJECT LOCK LEVER
ADJUSTMENT (Fig. 5-16)
I 5-7. CASSETTE IN SWITCH
POSITION ADJUSTMENT
(Fig. 5-11)
5-11. EJECT LOCK LEVER
ADJUSTMENT
(Fig. 5-15) r
Fig. 5-9 Visual index