Tape Tensión; Fast Wind Speed - Teac TASCAM 388 STUDIO 8 Operation & Maintenance Manual

1-3-7. Tape Tensión
NOTES
I.Since these settings are precisely factory
adjusted, In general they should not be re-
adjusted. If it is specifically required, a
special meter ís needed.
Tentelo meter: Model T2-H20-1 orT2-H15-UI\/1.
2. For the reels mounted on both left and right
reel tables, use the same size ones.
3. Before ai! the foiiowing adjustments (A-1 ~
C-3), perform next ¡nstructions in order to
actívate the relevant circuit.
a. Thread the tape to lift up both tensión/
shut-off arms.
b. Set the POWER switch to ON.
c. Leave the deck as it is for 5 to 10 minutes.
A. m PLAY MODE
1. Place a reel loadíng TEAC YTT-8013 test tape
on the left reel table and an empty reel on the
right reel table, then thread the tape.
2. Let the- tape run in fast froward mode until
both reels have nearly the same tape windíng
diameter.
3. During play, measure tape tensión at points
A and 8.
4. Adjust R112 (for left tensión arm) and R212
(for right tensión arm) so that the topcenter
of the tensión rollers aligns with the forward
outer edge of the innertia and footage roollers
as shown in Fig. 1-3-8.
5. Adjust R103 (for back tensión at point B)
and R203 (for take-up tensión at point A)
so that the specified tape tensión of 40 g ±5 g
(1.2 02 ~ 1.6 oz) for back tensión and
50 g ±5g (1.6 oz ~ 2.0 oz) for take-up ten
sión are obtained.
B. IN FAST FORWARD MODE
1. Load TEAC YTT-8013 test tape on the left
reel table and an empty reel on the right reel
table, then thread the tape.
2. Stop the left reel by hand and set the deck in
fast forward mode.
3. Adjust R206 to obtain a 80 g to 90 g (2.8 oz
~ 3.2 oz) valué at point A (Obtain a 80 g or
2.8 oz valué as far as possible).
C
C. IN REWIND MODE
1. Load TEAC YTT-8013 test tape on the
right reel table and an empty reel on the left
reel table, then thread the tape.
2. Stop the right reel by hand and set the deck
in the rewind mode.
3. Adjust R105 to obtain a 80 g to 90 g 12.8 oz
^ 3.2 oz) valué at point B (Obtain a 80 g or
2.8 oz as far as possible).
Reel Servo Ajustment
REF. NO. FUNCTÍON
R112
Tensión Arm Position (Left)
R206
F. F Tape Tensión
R150
Fast Winding Speed
R212
Tensión Arm Position (Right)
R105
Rewind Tape Tensión
R103
Play Tape Tensión (Back Tensión)
R203
Play Tape Tensión (Take-up)
Tentelo-
Tente o
meter
meter
PLAY
PLAY,
REW
R2I2
TP3
RÍI2
TP2
R206
TPI
Tensión
Rolíer
Innertia Roller
Footage Roller Tensión
Roller
Fig. 1-3-9
Fig. 1-3-8
1 9
J