Advertisement
ADJUSTMENT
OF TAPE
DECK
1.
Azimuth
Adjustment
.
Be sure to clean the heads before
attempting
to make
any adjustment.
.
Be sure
both channels(l
and 2) are the same level (Using
a dual-channel
oscilloscope),
.
Be sure
both cannel's
waveform
are same for the phase matching.
.
After
completion
of the adjustment,
use the thread lock (TB-1401B)
to secure the azimuth
adjustment
screws.
(l).
DECK
A
~.
Load a test tape (VTT-703
etc. : 10kHz)
in deck A.
Q.
Press
the PLAY
button.
(normal
playback)
@.
Use a + tip
screwdriver
to turn
the screw
for
normal
azi-
muth
adjustment
so that
the
left
and
right
outputs
are
maximized
at the same phase during
normal
playback.
(2).
DECK
B
~.
Repeat
procedure
for deck B.
2.
Tape
Speed
Adjustment
STEP
SPEED
DECK
TEST
TAPE
SVR
TAPE
COUNTER
REMARKS
,
,
1
1
1
1
1
Normal
DECK
A
MTT-I
1 IN
2995-3005
HZ
Memorize
the tape speed on counter.
Confirm
that
SVRO1
3000Hz
the
speed
of
DECK
B
is
in
-40-70
HZ
against
2
Normal
DECK
B
-40-
70Hz
DECK A.
Notes
:
1.
2.
3.
4.
5.
3.
Parts
For making
adjustment
of step 1, set the DECK B mechanism
ts record
made with
C-60 blank
cassette
tape.
Adjustment
should
be made at the ending
portion
of the tape.
Confirm
the indication
of the tape speed for
2 second
after
adjustment
has been made and adjusting
driver
has been re-
moved
from
SVR on the TAPE
DECK
AMPLIFIER
P. C. Board.
For adjustment,
use the screwdriver
with
Isolated
tip from
grip.
For
high
speed check, short
the test
points (High-SPEED)
to chassis
ground
on the
TAPE
DECK
AMPLIFIER
P. C. Board, (Test
Tape
is TCW-21
1) and confirm
that the speed of DECK B is in -40-70
Hz against
DECK A.
Location
SHORT
/
/
T
+ B1
u
Lw
L
03907
(H1
SPEED)
TAPE
SPEED
D
@
SVRO1
CN304
B
TA-R-.
+
TA-L
--L
HI. S.—
I
c1
f
-11-
Advertisement
