3030
w
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TASCAM
TEAC Professional
Division
.,
il./e
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SERr/ICE
iAANU
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-
3030
Stereo
Tape
Deck
z
NOTES
As regards the
resistors and capacitors, refer
to the
circuit
diagrams
and
the PCB ass'y drawings contained
in
this manual.
*
*
Parts
marked
with
*
require longer
delivery
time.
Resistor values
are
in
ohms
(k
=
1,000
ohms,
M = 1,000,000
ohms).
All
capacitor
values
are in
microfarads
(p
=
picofarads).
A
Parts marked
with this sign are safety
critical
components.
They must
always be
replaced with
identical components
-
refer
to the TEAC Parts List
and ensure exact
replacement.
0 dB
is
referenced
to lV
in
this
manual unless otherwise
specifi-
ed.
PC
boards
shown viewed
from
foil side.
Parts not shown
in the
parts
lists
or
parts,
through
listed, having
no
parts
numbers
are not
general
"ready-to-supply"
parts.
o
dbx Noise Beduction
system
made under
license
from
dbx,
lncorporated. The name'"dbx"
and the dbx symbol are
trademarks of dbx,
Incorporated.
rif,
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Effective; March. 1989
930153
5704043400
1
SPECIFICATIONS
AND
SERVICE
DATA
,lx&t.r-c7-7
-t
MECHANICAI
CHARACTE
BISTICS
Tape
Format
2-lrack,
2-channel
recording/
repr00uce
4-trak,
2-channel
reproduce
Max.
Reel
Size 10-112"
,
NAB
hub
Tape
Speed 38
cm/s
(15
ips)
and lg
cm/s
(7.5
ips)
Speed
Accuracy
!0.5
% deviation
Pitch
Control
16
%
Wow
and
Flutter
10.07
%
peak
weighted
(DlN
45507)at
l5 ips,
10.08
%
peak
weighted
(DlN
45507)at
7.5
ips
Fast Wind
Time approx.
100 sec.
for
1,800
ft.
Motors
Capstan
FG
servo DC
motor
Reel
2 DC
slotless motors
Head
Conliguration
4 heads;
2-track
Z-channel
erase, record,
reproduce
and 4-track
2-channel
reproduce
Dimensions
432
x 456
x
268
mm
(17"
x
11-5116"
x l0-9/16")
Weight
{net)
21 kg
(46.5/16
lbs)
ETECTBICAT
CHARACTERISTICS
Mic
Input
Input
lmpedance
10
kohms,
balanced
Applicable
Mic
lmpedance
200
ohms
or
m0re
Minimum
Input
Level
-72
dBV
(0.25
mV)
Line
Input
Balanced/
Unbalanced
Input
lmpedance
-
I
0
koh ms/
50 kohms
Maximum
Source lmpedance
2
kohms/'10 kohms
Nominal
Input
Level
+4
dBm
(1.23v|1-10
dBV
{0.3
V}
Maximum
Input Level
+28
dBm
(t9.5
V)/
+18
dBV
(8.0
V)
Line
Output
Balanced
/
U nbalanced
0utput
lmpedanc,e
100
ohms/
500
ohms
Minimum
Load
lmpedance
600 ohms/3
kohms
Nominal
Load lmpedance
10 kohms/
l0
kohms
Nominal
Output
Level
+4
dBm
(1.23
V)/-10
dBV
(0.3
V)
Maximum
Output level
+28
dBm
(19.5
V)/+lB
dBV
(8.0
V)
Headphone
0utput
Level
(where
applicable)
50 mW
max. into
8
ohms
Bias Frequency
150 kHz
Equalization
3,180
+
50
ps
at
15
ips
and
7.5 ips
Operating
Level
320
nWb/m
or 250
nWb/m
sar itch ab le
Power
RequiremenB
USA/CANAOA 120
V AC,
60
HZ
U.K./AUSTRALTIA
240
V AC,
50 HZ
EUR0PE 220 V
AC.
50 Hz
c
Er{ EBAr
EXP0 RT
1001
1 20
|
220t 240
V AC,
50/60
HZ
Power Consumption
120 Watts
TYPICAT PERFOBMANCE
Frequency
Besponse
(Record/Beproduce)
40
Hz - 22 k1z
12
dB
(0
VU,15
ips)
30 Hz
-
20 kHz
t2
dB
(-10
VU, 7.5 ips)
Total Harmonic
Distortion
(THD)
0.5%at0VU,1kHz
Si
gnal-to-
ltloise Ratio
(
overall
)
(
R ef eren ced
3 %THD at 1 kHz)
dbx-in
98 dB
(NAB
A
Weighted) at l5
and
7.5
ios
dBx-out
68 dB
(NAB
A Weighted) at
l5 and
7.5
ips
Adiacent
Channel Crosstalk better than
55 dB
(1
kHz)
Erasure
better than 70 dB
{1
kHz.
+10
VU)
In these specifications,0
dBm
is referenced
t0 0.775
Volt.
0 dBV is referenced to
1.0 Volt. Actual
voltage
levels are
also
given
in
parentheses.
Changes
in specifications and
features
may
be made without
notice
or obligation.
dbx
is a trademark of dbx Incorporated.
.
J,
A
IXffi+ a 0 dBV
t* 1.0v,
0 dBmtt0.775
v-++L
t
rr\td.
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Tension arm
guide
roller:0.05mm
to 0.3mm
0.1mm
to
0.25mm
(magnefloat
type)
0.05mm to
0.3mm
0
(spring
type)
0
(spring
type)
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Xt$E"ix.lt
6.
reel motor
chassis
solenoid
plunger
brakg
arm
brake
felt
brake
band
brake solenoid
solenoid
mounting
screws
deck
\
-
2
MECHANICAL
ADJUSTMENTS
AND
CHECKS
&E*Bo]-dH*rrE-#.
2.1 ROTATING PART
THRUST
CLEARANCE
CHECKS
Reference values
Capstan shaft:
I
nertia roller:
Reel motor:
Tension arm:
ilOTE:
Since
the
capstan
shaft
is
a magnefloat
type,
check that
it is
forced
towards
the
rear
of the deck
while rotating.
2.2
CAPSTAN
MOTOR
REPLACEMENT
l. When the
capstan
motor is
replaced.
install
itwith
its lead wires
and washers
as
shown.
2. Check that,
when
the deck
is operated
by repeating
the forward
and reverse
play
modes,
the
capstan drive
belt
changes
position
on the flywheels
smoothly.
top
of
the
Fig.
2.1
Capstan motor replacoment
2-3 BRAKE
ADJUSTMENT
ttl0TE:
The explanation
and figure
in this
paragraph
are for
the left
side brake,
similar
checks and
adjustment
are applicable
for
the right
side one.
1.
With brake
applied
(brake
solenoid off), move
brake
band bracket
in directions
(A)
so
that
brake
arm
comes
in
parallel
with reel
motor
chasis.
2.
Adiust the mounting
position
of brake
solenoid in directions
(D)
so
that
when brake
solenoid
switches on and
off the
stroke
of the
solenoid
plunger
is
about
2mm.
3. Adjust
band
ass'y retaining
plate
in directions
(B), (C)
and
(E)
so
that brake
felt
does not
touch brake
drum when
brake
solenoid
switches off.
4. Upon
completion
of adjustments,
check that tape
tension
does
not drop
in any
tape transport
modes
and there
is notanytape
winding
troubles.
G)-O4.5
x O12
x tO.8
<s
-Q4.5
x 08
x t0.5
*=€,07
]\-- 1i5
brake
drum
Fig.
2-2
Brake adjustment
-
2.
3.
4.
24
BRAKE
TOBOUE MEASUREMENT
l. Pface
an empty 7" reel,
connected to
a spring
scale
by
a
string,
on
the reel table.
Pull
the
scale away
from
the reel
and read the
scale
indication
only
when the reel
table is
steady motion.
Do steps 1 and
2
for
each measuring
condition,
(A)
through
(01
in Fig.
2-3.
The values
are as chart in Fig.
2-3.
Fig.2-3
2.5
PAUSE
POSITION
ADJUSTMENT
1.
Place
the
deck
in the
pause
mode.
2. Adjust
by
turning
the
pause positioning
nut
so
that
the clearance
between
the capstan
shaft and the tape is
0.5mm
to 1.0mm.
3. 0f the two
capstan shaft/pinch rollen,
adjustment is allowable
only
for
the
side
having the
narrower
clsarance.
4.
Check
that,
by repetition
of
play
mode t0
pause
mode and
stop
mods to
pause
mode, there is
clearance at
both
sides.
2-4 7v-+.ttv2iillft
2-5
€
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SE
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iFJ
Fl
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l.d(
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fA
& 6E ne.t
6
pause positioning
nut
pressure
stroke
adjusting nu1
Fig.24 Pause
position
and
pinch
roller
pressure
stroke adjustments
Fig.2-S
Pause
position
adiustment
t
t
a
L
,/7 tal
F. n lal
Eh+
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t.2-1
.9
0.7
0.zt-l
F
Et)
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r.2-1
.9
0.7
Htl
:
kg.cm
(ts
)vt
6+tlg)
Itr
Il
spring
scale
t
Forward
direction
(Bl (C)
1
.2
to I
.9kg-cm
(
I 7 to
26oz-inch)
1
Reverse direction
(A) (Dl
0.7kgrm
(9.702-inch)
or
les
Left/right deviation
0.2kg-cm
(2.802-inch)
or les
ItOTES:
l.
The
revene
direction
values are
reference.
2.
The
specification of left/right
deviation
only
applies for
fonvard
direction
torques.
Torque calculating formulas:
(l)
Torque
(in
g-cm
or oz-inch)
=
Force
or Weight
(in
g
or oz)
x Badius
(in
cm or inch)
l2l
Conversion
of
g-cm
to oz-inch:
g+mx0.0139=oz-inch
fr,
I_
-
2.6 PINCH
ROLLER PRESSURE
STROKE
AOJUSTMENT
1.
Set
the deck
in the
fonrvard
or reverse
play
mode.
2. Adjust by turning
the
pressure
stroke
adj. nut
(Fig.24)
so
that
the clearance
between the
pin
and the
stopper cushion
is
about
1.0mm.
3.
Since
the clearance is
produced
at one
side
(left
or right),
adiust-
ment f or this
side only is
permissible.
2-
6
e
>
U
a
-
-
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a
-
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ffi#T
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(F
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t*ElsrF!t.!,y
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t5
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iffi E
tr
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A
t
t *11,fi
{
+F tt
a'ryti.
pinch
roller
Either the
left or right
should
have
a
clearance of about
1.0mm.
7+?1mmiEE
(t6L'bbh')
Fig.
2-6
2.7 PINCH ROLLER PRESSURE MEASUREMENT
t{OTES:
1.
The
explanation
below applies to both
the
left and
right
pinch
rollers.
2. Both
pinch
roller
pressures
are automatically
set
with
equal
value.
l. Hold both the left
and
right
tension arms in the upper
positions
using
rubber
bands,
string
etc.
2.
Set
the
deck in either
play
mode with no tape loaded.
3. Attach the
spring scale
to the
pinch
roller
as shown in the
figure.
4. Draiv the
pinch
roller
away
from
the capstan
shaft
(in
the direc-
tion of a line intersecting
the centers of the capstan
shaft
and the
pinch
roller)
until the
capstan shaft and the
pinch
roller are
se-
parated.
Return the
scale back
until
the
pinch
roller
just
begins to turn.
The
scale should
then be reading
as
follow.
Reference
value: 1.35k9 to 1.9k9
(3.0
lbs to
4.2
lbs)
lf the reading is out of
specification, replace defective
part(s).
There are no adiustable
parts.
Fig.2-.
5.
6.
raght
capstan
right
t
2.8 TAPE TE]IISIOil ADJUSTMENT
TENTELO
METER
2-8
7-7.7>2=>##
{FF. REW SPEED}
R 150
TENTELO
METER
r
lkw
b-
$
B
PLAY,
REW
A
PLAY,
FF
FiS,28
Tape
tension
measuring
point3
il0TES
l. Since
these
ssttings
are
precisely
factory
adiusted,
in
general,
they
should
not be re-adjustsd. lf it is
specifically
required, a
special
metor
is
needed.
Tentef o meter:
Model
T2-H20-1 or T2-H l5-UM.
2. To
facilitate adjustment,
the
deck
should
be
placed
in a vertical
position.
3.
For
the rsels mounted on both
left
and
right reel tables,
use
the
same size ones.
4. Before all the
following adlustments
(2-8-1
-
2-84),
perform
next
instructions in order to activate the relevant circuit.
a..Thread the tape to lift up both tension/shut-0ff arms.
b.
s8t
the
PowER
switch
to 0N.
c. Lsave
the deck
as
it is for
5
to
l0
minutes.
2-8-1
ttrl PIAY
M00E
l.
Place
a reel loading
TEAC
YTT-8013
test tape 0n the left reel
table
and an
empty rsel
on the right reel
table, then thread the
tape.
2.
Let the tape
run
in
fast
foruvard mode
until both
reels have
nearly
the same tape winding
diameter.
3.
0uring
play
with a LOW
speed.
measure
tape tension at
points
A
and B.
4. Adiust Rl22 and R222
so
that
the specified tape tension
of
509
t
l0g
11.4oz-2.102)
is obtained.
(0btain
a
509
or l.8oz value
as
far
as
possible).
(REW}
R255
(FFl
R257
(PLAY)
R122
IPLAYI
R222
Fig.2-g
Tape
tension adiuster location
.T
tif;
1.7-J.->>
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)-9
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o
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2.8-3
ItU
FAST
FOBWABD
MODE
1.
Load
a
TEAC
YTT-9013
test
tape
on
the
left
reel
table
and
an
empty
reel
on the
right
reel
table,
then
thread
the
tape.
2.
stop the
left
reer
by
hand
and
set the
deck
in fast
fonaard
mode.
3.
Adjust
R257
to
obtain
a
t00g
to
l20g
(3.boz
-4.2ozl
value
at
point
A
(0btain
a
I
l0g
or
3.g
oz
value
as
far
as
possible).
REMARK:
Back
tension in
fast
forward
(or
fast
rewindl
is
auto_
matically
set when
tape
speed
is
adjusted
as in
paragraph
2-12_2.
2-84
ItT
BEWIND
MOOE
1.
Load
a
TEAC
yTT-9013
testtape
on
the
right
reel
table
and
the
empty
reel
on
the
left
reel
table,
then
thread
the
tape.
l. !,9.0
the
right
reel
by
hand
and
ser
the
deck
in
the
rewind
mode.
3.
Adjust
R255
ro
obtain
a
l00g
to
l20g
(3.502
-4.2ozlvalueat
point B (0btain
a
l00g
or
3.goz
as far
is
possible).
2.9
TENSION
ARM
HEIGHT
ADJUSTMENT
1.
Thread
any
standard
tape
oh
the
deck
using
a
standard
empty
reels
such as
TEAC
RE-1002.
2.
Set
the
deck
in
the
play
mode.
3.
Stop
left
(right)
inertia
roller's
rotation
by
hand.
Adjust
by
turning
the
left
(right)
tension
arm
height
adjusting
screw
(refer
to Fig.
2-10)
so that
the
tape
moves
in
the
center
of
the
inertia
roller.
II0TE:
When
adjusting, pay
special
attention
to
the
relationship
between position-detecting
shutter
and
the
opening
of
photo-interrupter
to
prevent,
for
example,
the
shutter
from
being
caught.
4. Release
the
inertia
roller.
Fine_adjust
the
adjusting
nut
again
until
there
is
no
tape
curling
on
the
tape
guide
pin
between
the
erase
head
and
the
left
(right)
inertia
roller.
5.
After
Adjusting
the
height
of
both
left
and
right
tension
arms,
check
that
the
tape
running
condition
is
good
by
switching
be_
tween
fast
forward
and
rewind
modes.
6.
lf the
tape
running position
is
different
when
the
inertia
roiler
stops
and
when
it
turns,
the
conditon
when
the
inertia
roller
is
rotating
has
priority.
2-8-3
FF7>2e>=:dl*
1.'ti-4|F.\at.)
-)tJ(Eu
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atrt
U<FF=_
t-.trr5
(
i
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t
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rs
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t.
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.
2.
AaltE
I.-
>-
D
.
J_
_
t
&
\7,R257
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=
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t
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+
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(
t
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a t: ttl 10s
t.iE.
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lr
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.
aa
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i*.
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rt.1iln-Eh\qILt
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F.
!
--tEl$x
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j_J
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re@%t
6
.
Figure
shows left
side
tansion
arm.
I'xl
l*
lr.lF.tli
> >
=
>.
p
-
A&it
.
\
c
tension
arm
height
adj.
screw
positiondetecting
shutter
Fis.2-1o
left
tension
arm
{
2.I|l
REEL
TAELE
HEIGHT ADJUSTMENT
1. Adjust
the tension arm height beforehand
(See
2-91.
2. Check each reel table
height using a TEAC RE-l 002
empty reel
and letting
the
tape
run
in each
tape operating
mode.
3. lf
the tape rubs against the reel
flanges, adjust the reel table
height by means of the two
reel table mounting
screws.
Fis.2-11
2.II TAPE
PATH ALIGNMENTS
The
following
procedure
is for
parallelism
adjustment
of left
pinch
roller. A similat
procedure
is also applied
for the right
pinch
roller.
2.1I.I COABSE
ADJUSTMEI{T OF
PIttICH ROtLEf
PARAttEtISM
l.
Let
pinch
roller draw near
toward
capstan shaft
by manually lift-
ing up tape lifter shown
in Fig.2-12.
2.
Check
pinch
roller/capstan
shaft
parallelism
viewed
from
direc-
tion
of arrow A
shown
in Fig. 2-l 2.
(
Ref er to Fig. 2-13, 14.)
3. lf
not
parallel,
loosen the
reinforcement
plate
screw
near the
corrocti0n-required side
(Refer
to
Fig.
2-15),
then correct tilt of
pinch
roller
spindle
using correction
iig.
(Part
No.
573600100).
Adlustment can
be done by tilting correction
jig
in direction
of
arrow A
or
A'.
IIOTE:
(l)
Use
the
iig
as near as
posible
to the
pinch
roller spindle.
(2)
Do not touch the
surface
of spindle.
(3)
Use no other tool
for
this adjustment!.
4.
Remove
pinch
roller, then
push
up tape
lifter to visually align
pinch
roller
spindle
with the
capstan shaft
viewed
from direction
of
arrow
B
in
Fig.
2-12.
5. lf nbeded, adiust
by tilting
correction
jig
in direction
of arrow B
or B' in
Fig. 2-15.
2.11.2
FITTE
ADJUSTUETIT OF
PITICH BOLTER
PABAttEL
ALIGIIME]IT
1. Repeat
play
and stop and
confirm tape
travel
positioning
does
n0t vary.
2. lf
necessary,
adjust
pinch
roller
alignment
as shown in
Fig.
2-15.
2-10
t)-/t,6H*eB:g
\.-w1tRcl
7
)
) = )'
7
-
/lHtffif'1Al-+ffi*& 1 i
) < <
T:
d
L\.
2.TEAC RE-1002
t)
-)vtl€,ffil',
&7-)6h1ts<--ih\
|
) )u. )
->
tl.+*ffit 6h,x-
h,&*
t'v 2t
4.
3.€
t
{*f;4t6t*+t*t)
-)ve&taa
u(t\6 2 +o+>&
vi
6b. u
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awftlaa&atlh'
t'<ffi#-{
4.
2-11 7_J€FEE#
t>+-
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a
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3.
Y 11 T
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15
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6.
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.
(ffigt+
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4.ikt.t>+.D--&t+t,
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a
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f
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--i+-ft1nEh\q4Lur{u\
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6E7Et6.
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E U
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tE
e
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-
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5
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h
i*<
t- >
+
.
D
-
-
*fr
o
lq.3
&'{&ffiM-{ 6
.
T
('
capstan
shaft
Fig.
2-13
View
in
direction
A
(example
of
non-paralletisml
FiS.2-12
Directions for pinch
roller
parallelism
check
pinch
roller
spindle
pinch
roller
shaft
FiS.2-14
View
in
direction
B
(example
of
non_parallelism)
correction
jiS
(TEAC
P/N
5736000tOO)
I |
^
reinforcement plate
screws
o, I lft
(Loosen
the
correction-required
side)
f
)
FiS,
2-15 Pinch
roller/capstan
alignment
$
2-12
TAPE SPEED
ADJUSTMENT
OSCI
LLATOR
FREOUENCY COUNTER
cH2
LINE
IN
cH2
OUTPUT
Fis.
2-16
2-12.I PtAY
SPEED
1. Connect a
frequency
counter to
either
0UTPUT
terminal.
2.
Load
TEAC YTT-2004
test
taoe.
Set
the
SPEED switch-HlGH.
and
PITCH
C0NT knob-0FF.
3.
Play
the
tape. Adjust HIGH
SPEED control
(see
Fig.2-17llora
reading
of 3,000H2
t5Hz.
4.
Check the
following
at the beginning and
the
end
of the tape.
Specifications:
Tape
speed deviation
3,000H2
130H2
Tapespeeddrift..
......15H2
5. Change
the
test tape to a
TEAC
YTT-2003
and SPEED switch
setting to L0W.
6.
Bepeat
steps
3 through 4. Adjust
LOW SPEED
control
if neces-
sary.
Pull
the
PITCH
C0NT
knob
out.
Set SPEED switch
H lGH. Play
a
YTT-2004.
Check if the speed variation
of at least
3,000H2
+180H2
is ob-
tained when
the
PITCH
C0NT
knob
is rotated fully
in both
directions.
Change the test tape to
YTT-2003
SPEED
switch setting to
L0W.
Repeat step
8.
FAST WINDING
SPEED
l.
Set
the
deck in vertical
oositi6n.
2. Connect oscilloscope between TPI test
point
on the
P0WER
PCB
and
ground.
3. Thread a TEAC
YTT-8013
test tape. In this case, either use of
Tinch reels or l0inch are
permitted
provided
both leftand
right
reels are tha
same size.
Ouring
fast fonrvard or rewind
mode, adjust R150(see Fig.
2-9)
so
that wavelength displayed on the oscilloscope becomes 7msec.
(Fig.
2-18). Adjustment should be
satisfied
at any tape
winding
position.
Check
that almost equal value
of
fast winding
speed
is obtained
between
fast forward
and rewind modes.
2-12 7-/.zH-t"EEg
2-12-I
FWD/REV PLAYZE'-F
\.ffi#lqFfr
X2-17+nq
2.--).7.tr-
l-.iiEgF+
,E'y
J.
r l/
F
tr
-)1,,
.).4
'y
jl*
oFFt-t
rdi<.t.
3.ffi.t&
-
-;
2-12-2
FF/REW.XTJ-l.r
7.)\.)
*+Fa.]_TP.
1(Bl2-s8F1.) t-t>D7-_t
)e#frft:+
4.
z
.
i
'y
*?I*FF.E
-
l--
X I*REW=
F.
l.
t
.6
.
3.TP.loiEfrtaiQF<h\7
m
sec
{if*5S
-
l. R150
(X2-s+n4.\
effi*'q
6----..[x2-r8
4.
FFt REW(z\A
faf;/lfaY:.
X&6EAEd
6
.
Fig.2-17 FWD/REV
play
speed adjustment
points
Fig. 2-18
Waveform
at TPl
f
7.
8.
9.
4.
5.
!
DECK
under TEST
capstan
motor
HIGH
SPEED
LOW SPEED
10
2.13 WOW
AND FLUTTER
CHECKS
N0TES:
The following
measurements
should be made
at the
beginning
and the end
of
the tape.
Playback
1. Connect the test equipment
to the deck
as
shown in Fig.
2-,|6.
2. Load and
play
a TEAC YTT-2004
test tape
for
HIGH
speed
(38cm/s
or
l5ips), or a
TEAC YTT-2003
test tape for LOW
speed
(19cm/s
or
7-Yrl.
3.
Read
the indication
on
the wow
and
flutter
meter.
Specifications:
2-13
,r.72y?.7-.y2
I*,lHi-j
YTT 2003
""""LOW(l9cm/sec)
YTT 200,1.........HIGH
(38cm/sec)
7
\'r
|
)
)lrI€.ll11+o
E|lf;Vt
/kr-t'El*
|.)
&iHI
i.
+J-
tl,.
iJ:
s*
++ iJ:
T ) l{t2 RMS
WRMS
RMS
1
9cm/s
0.10?l
o.o5o.4
0 . r2?z
38cm/s
o.o8?z
0.04?l
o . r)az
2-14
iiifi
i'v
*
d)
lpl *r;1[
r]
(.
t*
1
000H+
Ffl ft ffi
fu
"t
r".
tJ I
4.
t.
I
tpl f?E
ii,ifrrr,z'*rd.
n
1
)ttt,
TEAC^U>
|
)r.t
I
)t(TF,AC
TZ.255t
1
)U.
.F'y
F)
XlJMobil
D.T.E.n
{
)r--1
t-+6'l*.H1t,r<tar\.
f
.i'v*t*'f-ir:Et-H<.
2.7>>=>.D
-,ti1
l-..tr
-,tr)
f.tr
-t.t**tiffi,
+
p
-
7
t
>
tr ts'iff
,
?
n<
nvlz-
I
9 tr
it-Ffi
?a;a,fElFf
t.ii,ifi
f
5.
3.
iiifi
l*
?r& 5
f+
rr&
),
*/:7 1
E1 i
#Bt, t-
t 4
)th\
l.f
??
L
r*Lrt
-r
ii.na
L r
<
f:A
r\.
Figure
shows left
side. 0o also for right
side.
tension
roller
inertia roller
,r'----\
n|l
\2
\+-,,
J_
6-
g
tra5'h
YV
A.z E"
-
-q
z4Y:t
/(4).\
Fis.2-19
HIGH
(38cm/s):
0.04%
WBMS
LOW
(l9cm/s):
0.05%
WRMS
0.08% RMS
0.10%
BMS
r
IF
0verall
4.
Load a TEAC YTT-8013
test tape
(blank).
Apply
3,000H z signal.
5. During
simultaneous
tape monitoring
(playing)
signal, read
the wow
and
flutter
meter
display.
Specifications:
and
record
a
the recorded
HIGH:
0.10%
RMS
LOW: 0.12% RMS
2-14 tUBRTCATt0N
0iling
is
needed
after every
1.000 hours
of operation
or
once a
year
if the
deck is infrequently
used. For
this
purpose,
TEAC
spindle oil
(from
TEAC TZ-255
oil kit). Mobil
D.T.E.
0il Light, etc.
are
recom-
mended.
Lubrication
is normally
not
necessary
except
at the
points
shown
.
l. Place
the deck
in the horizontal
position.
2. Apply
a few
drops of
oil to therespectivespindlesshown,exclud-
ing
capstans, then
spread the
oil evenly
on the
spindle
surfaces
using
a cotton
cloth,
etc.
3. For
capstans, apply
a
few
drops to
the indicated
position.
4. After
oiling
all the
points,
leave
the deck for
1 to
2 hours
until
the
oil is thoroughly
absorbed.
2-15 VOLTAGE
CONVEBSION
(FOR
GENERAL
EXPORT
MODELS)
Voltage Gonversion
1.
First
remove the two feet
by removing
the
screws
in
each one.
2. Unscrew the
left and
right
sides
of
the cabinet.
3. Locate the voltage
selector
as
seen
from
the top
side
of the deck.
4. Turn the
slotted
center
post
0f the
selector
with
a screwdriver to
match the numerals
corresponding
to the voltage requirement
of
your
area
to the
point
marked
"SET
UP
V0LTAGE"
(click
sound is heard).
5. Replace the cabinet
and
feet.
capstan
tu
r
pinch
roller
r.-\
\-!=r'
g
a/€t$\
|.'=-]
v
H
\ cl/
I
f
Fig.2-2O
11
^
2.16
HEAD ALIGNMENT
There is no
need for head height and tilt adiustments
because
the
record and
playback
heads
of 3030
are a semi-fixed
type
(erase
head
fully-fixed).
2-I6.I
HEAD
MOUt{TIttIG
(BECOBD
AND
PLAYBACK
HEADS)
1. Refer
ro
Fig.2-23.
2.
With head mounting screws,
mount
heads to
head mounting
plate.
Attach shield
case
to the
playback
head.
3.
Mount
head as'y to
head base using
mounting screw
and mount
tangency
adjustment screw.
4.
Mount azimuth adjustment
screws.
2.I6.2
PTAYBACK HEAO
AOJUSTMETTT
1.
See
Fig.
2-24
tor
necessary
connections.
2. Set
the 0UTPUT switch
to
REPR0.
3.
Run the test t3pe TEAC
YTT-I003 in
play
mode to
reproduce
the
400H2
signal
on the
tape.
4. Slightly
loosen
the
mounting screws
which
hold
playback
head
in
place
and adjust
the tangency using
adiustment screws,
for
maximum
output.
When the maximum
output
is
attained,
retighten both
mounting screws.
5.
Play the l6kHz
signal
on the
tape and adiust
the azimuth
of
the
playback
head using adjustment
screws
for
les
than 45"
of
phase
difference between
the two channels
(see
Fig.
2-251.
I{OTE: Azimuth
adjustment should
be
completed
by turning
adjustment screws
in
tightening direction
(clockwise).
6.
Set the
PLAYBACK
HEAD
wrritch
to
4T and
perform
thesame
tangency
and azimuth adjustment
procedures
to
4 Track
play'
back
head.
2-I6-3
RECORO
HEAD ADJUSTMEIIT
Proceed to
record head adjustment
only
after
playback
head
adjustment
has been completed.
1.
See
Fig.
2-24
for
necessary connections.
2. Set
the 0UTPUT switch
to REPB0.
3.
Load
the blank
test tape AMPEX
456
and
record
a 400H2
-10dBV
(316mV)
signal
in
recording
mode
to reproduce
it
simu
ltaneously.
4.
Adjust the tangency
of
the recording head as
in step
4
under
paragraph
2-1
6-2.
5. Simultaneously
record and reproduce a l
kHz.
-20dBV
(100mV)
signal and adjust
the azimuth
of the recording
head using adiust-
ment screws
for less than 0o
of
phase
difference
between
the
two channels
(see
Fig. 2-25).
tt0TES:
oAzimuth
adjustment should
be completed
by turning
'
adiustment
screws
in tightening
direction
(clockwise).
rBe
carefull
not to
confuse
the
bias signal
(150kHz)
in measurement.
2-16
r'7
l."FEiE
i:t030o$*#,\)i
l-
LE4E,r
y
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l*'+.16l€il(i'Hli,\'y
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F
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t*.^'zF)
t.Fig.z-234F.H
2.
r.
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3.rr.'y
FAss'yA^\'y t-. 16l€+
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t-.EfErJ*:u
-C^'v
F'
rr-z.ll4f
{,lli6.
4.7
tn
)-ffi#+t&n\fti6.
2-16-2
E*;.y1.'38#
I
.
t**fi
Fis.2-24
2.OUTPUT^4'Y7
:
REPRO
3.TEAC
YTT-1003-
).
-
7.
h.
aPLAY€-l-.t€iiat,
aooHzZ5ltE+.t6.
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l-r)^.y
FIfl€+yat1r*EdD,
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(
4
00 H
z$'{ts
iE i
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^'v
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a
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|
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Atr
&ffi# {
4.
t1t€+'la
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+
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tt#
b 6.
5 . it
r- YTT- 1003o)
I
6kH
zF tl
&Hry U,CHILCIr2o
ff iH+.
7)\4s" J--ltt l:fs.45- 7 t.?
^ffi'g+ttffi#t
6.
(Fis.2-2s)
tt
.
v
).2 z.ffi#.+) tttFb
6fr
6t
(A
tol
l-)
<ffi#tft*
6J_t_.
6.iAI'PLAYBACK HEADA4TI'
L,
F;CtEtFd)+ltIFi,
4TB+.,\'y f-t)^'y
t--H+&
rJ
t
7
)? 7otffi*&11r+).
2-16-3
i*€r'vl'iE#
$*#,r'v F.
ffi
gd)Hil
t.EaF^\'y
l-'
;Egrif{
-)
(
rr
5
i t
.
1.itfifi
Fis.2-24
z.OUTPUT;4'yf :
REPRO
3.AMPEX
4567
zxP'y I
to,
400H2/ 10dBV(316mV)
I=;
\
| & 11.
u
L
/.rz5i
D
ld
FtEi+t
6.
4.
E.
aE
^'y
t-
-;.Fj
43 t
E i*
r.
S*
F
^
.y
l--
d)
H
l,F
|
)
fu
E
&
ill+
-r
6.
.r
.
ikt. tkHz
/
20dBV
(
1 00mV
) t,; 4
e
*.H's:++.
a cllt
L CH2
altt.+tr*h\
0"
tllFl l-fa53
-7
t.?
^ffi#t6.
(Fie.2-25)
.
t*.
.
7t.?
tffi#?-tttffiet6fr6t
(fifElL)
<ffi+t
*&6-
t
.
.
)\4
7
t
t€+
(lsokHz)
AiRl
-€
L
f+
tr
& i itHi
6.x.
$
f
f
tz
29..o
\9.j
d6)
\@
io:
ig,i
10i
"\@j
\-'|
\
t*-
Playback
Playbac
k
Fig.
2-21 Head
arrangement
Adjustment
screws
head
base
mounting
screw
Tangency
Azimuth
Fixed
(not
adiustable)
tangency
adiustment
screw
azimuth adiustment
screw
head
base
head
mounting
screw
O
o
@
q
(-
azimuth adiustment
screw
head mounting
screw
head
mounting
AZf MUTH
7'/
?
7
The
gap
of
lhe
head
core should be
perpendicular
to the
tape travel.
^./
l.
:
7o+
?./ Jh:-
_7
fri-tf"-l{_liL
(*
E<'bb
-
t .
Fig.2-22
Head regulation
elements
LINE
IN
OUTPUT
Fig.2-24
Connection for
phase
check
shield case
(playback
only)
FiS.
2-23
Head
niounting
oO
(tN
PHASE}
go"
(A
\r/
TANGEI{CY
I
1'RI)
The
dolled line
should be
perpendicular
to the
surface of
the tape.
r'v
l.of,L.fiR
(F,tR)
ht--J{:*E<'64:
a.
DECK
undor
TEST
n
oo
F iS.
2-25 Conf irming
phase
relationship
13
3 ELECTRICAL
ADJUSTMENTS
AND
CHECKS
7>/*ggr-ffi#tfE-#.
$
3-r ADJUSTMENT
POINTS
LOCATION AND
CONNECTION
'EEIEFEI'*fT
f
f
f
Fig.
3-1 REC AND PLAYPCB
adjustm€nt and test
points
f
R550
/
R950
2I
P
layback
IQ
R563
/ R963 Low
soeed
Rec t0
R551
/
R951
4T
R56i
/
R96i
Hish
speed
Rec [Q
R554
/
R954
2t
Playback level
R51?
/
R972
Rec
bias
R555
/
R955
4T
R576
/
R976
Phase
shi ft
R556
/ R956
0utput
level
t301
/ 1401
Bias
trap
(playback)
R557
/
R957
Input level
L 304
Honaural
Rec t0
|i55B / R958
VU meter
1306
/ t406
Bias trap
(record)
Rs59
/
R959
Rec I eve I
14
t
;
I
Fig.3-2 Headphone PCB adjustment
points
NOI tS
:
1. Before
perf0rtning
adlustments and checks, clean and
delnagnet ize the enti fe
tape
path.
2.
In
general,
adjustntents and checks
are done in the
0fder 0f Ci]-1 then CH-2. Double RIF.
Nos, indicate
Cll-l/C|.l-2.
(txample
: R550/R950)
3.0dBV=1.0V
4. The AC v0l tI|leter used in
the
procedures
|tlust have
an
i nput impedance
of 1H-ohms
0r
lll0re.
LINE IN
Fig.
3-4
Connection
for
PHONES
level check
it,a
1.7
>7ffioffi&
.
MZLoffiIx, i-7ft.',fr*/)iHBL
iHtfi
t'fi',(
(
/jE lt.
2.++titFft.a*!\[E
D, AfilBlJ
CH-1, cT-z
a]EftT'frfc ")
( (
/i3
t,t.
r{
Rs50/R950
/)}
i {t;d,3fL(lr5gg*utJ
cH-1/
cl|-2
tzrL*,f.
3.0 dBv
=
1.0
v
4.WlEirlHHf
bv<)va+a^fi4
Yv-yvxtJ
1 HQ
ttl
La{rattf.ffi L(
(
t3
t,r.
oscr
LLoscoPE
DECK
under
TEST
AC Voltmeter
TEST
LOAD RESISTORS
15
$
3-2
PLAYBACK PIRFORMANCI
g.++
Test mode
FIIV-
lnitial deck settings
0UTPUT cont. : Scale
position
"7"
OUTPUI sl
: REPRO
REF LEVTL sw : 250ntl
Test tapes
YTI-
1
004
YiT-1003 :
15 ips
)
t-1/2 ips
)
For 38 cm/s
(
for 19 cm/s
(
And be sure lhat vhole
frequency satisfy specificati0n with both speeds,
38
c[l/s
TF,ffiaw++ir
xr,/rl
uf,etj
1 I cm/s
(.FiFEt6r,
),
Ex
U*
l:*fi$gtlr'.r-16
.
$
$
f
3-3
MONITOR PiRTORMANCi
I
Deck
settings
LIili cont. :
OUTPUT c0nt,
l'll0
cont. sw I
0UTPUT sit
Scale
position "7"
Sca le
posi
t ion
"7"
HIN
(
unless
other.lise specif ied
++t.+AftCIbb8Ath< )
INPUT
I
iiH
;ffi]FE
SIITING
I
INPUT SIGilAL
-#
E
',
xhEE
ADJUST
ffiHFf
RESULI
#EG
REilARKS
ffit
1. Playback head azimuth
E/*r'y
F
.7i?7
11
l-l
Connection . FiS.2-24
t*ffi
YTI- 1 003
(
16kflz/-10d8)
Azi[luth
screl{s
7r?^3w
y
Phase
{ilffi
within 45"
4s''IIFJ
Refef
to
F
is.2-21
-
2-?5
2. Play back level
Nkv\tv
l-l
AC voltlnetef to litC
and PLAY PCB TP,O,I/
iP.11 and oND
YTT- 1
003
(
400|-|r/0dB
)
2I
4l
R554/R954
R555/R9ss
TP.01/TP.11
-6.8dBV
(450mV)
OUTPUT :
-12.6d8V
(230|[v)
3. Frequency fesponse
Htdffi++tt
J- |
Spec. PB condition
ffiErF4ttE
SPEED sv : L0l,l
Ytr-1003
| zi , nssoznsso
I
(4ooru/lokltz)
|
at : nsstuRsst
I
0UIPUT : Nearly equal output level
(+1.5d8)
at
both frequencies.
Then check
frequency
response.
(Fis.3-6)
ffiH6ofr)1n{itrgL
<
(
+
1.
5dB)rr6
}
j
iffi
.
tofibffiWffi**tt'v2
(tr
3-6
*ffi)
3-2 SPiIO sw || IG|'| YTT-
1 004
Check
4-
^.
,.,
t
OUTPUI :
Frequency
response : Fig.3-5
Hiffiffitt
:
EI
3-5
If the high frequency
level doesn't satisfy specificati0n with 15 ips. readjust it with 7.5 ips.
I TEH
iffiIFH
SITT
I
NO
ax
rb
INPUT
SIGNAL
^fitr8
ADJUST
4ffi6-Ff
RESULT
dffiG
RTHARKS
ffi*
4. Spec i f ied
LINt
INPUT
LEVEL
LINI
flEl'rl,^Vt
AC
voltmeterto REC
And
PLAY PCB TP. 03/
TP.13
and Gt{D
LIi{E II{ :
lkHz
/
-10d8
(316|[V)
R557/R957
IP.03/TP.13
-4.2dBV
(61snv)
A-t
Connec t i on :
F i
S.
3-3
R556/R956
0UIPUT
:
-1OdBV(316nV
5, VU ll|etsr
t-tffi
t-1
LINt
spec. i
nput
condition
rrr{E
ffit/'rfitr
Same
as above
ItrJ I
R55B/R958 VUllleter:0VU
Refer to
Fig.3-2
i,
I
PHOIIIS
II{PUT TEVTL
\.7
l.frYHitJL"VI,
o-t
Same as
above
IqJ
-r,
Same
as above
lHl l_
Check
ts.'v ?
PH0NES
jack
:
-1',ldBV
+2dB
(224mV-354mV
)
8
Q
load
8QF?ff
Fis.3-4
l7
l,lin. HIC
input level
HIC
frzhl.,l:l,"Vt,
1a
t-l HIC
cont, : HAX
HIC II{:
lk{t/-7zdBV
(251
rrV)
Check
*t'y 2
OUTPIJT
:
-1odBV
+3dB
(224mV-447nV)
16
e
2-l
RTCORD I NG PIRFORMANCI
$?€fi
Test mode
R-EeTpllv-
Deck sett i ngs
REc--IUileTI0[lw
:
DBX
sw
:
RtF t.tVtL sw r
OUIPUI
Sw ;
OUTPUI cont.
:
LII{F cont, :
HIC cont.
BIAS
FINI
cont, :
C|-| 1,
2
both
0N
OUT
250nl,l
REPRO
Spec, PB condition
Spec. input
condition
Il
IN
Centef
Test taoe
nttPEXJS6-:
Blank tape
I ITH
iHg'qE
SITT II{G
tl ,tl
II{PUI SIOI{At
^htrn
ADJUST
ffitr'Ff
RTSUTI
iffilH
REMRKS
ffit
B. Bias tlap
)\477
F1y7
B-1
AC volt
meter between
TP.05/TP.'15 and
GliD
No
signal
#lzE
1306/t406
TP.05/TP. l5
Hin. reading
,'{,f
7xifil'ujFzjr
B
ias
f requency
)\477
Eiffi
150 kHz
B-2
AC volt
meter between
TP. 01/TP.
1 1 and GND
No
signal
ff=g
*tE ?
1301/140'l
1P.01/TP. 11
Hin. reading
,'{4
7:,if;*rjFzJi
Record b i as
g*E)\4
7
^
9-1
First set adjuster
ful ly CCl,l
(
O ),
then
adjust,
&l/Ji3+EE[tntE
-{tr{,rF]
L(r' 63ffi
tf6D6
.
SPttD sw : L0l,l
LIt{I It{ :
1 0kHz/-20dBV
(
1 00mV)
R572/R972
OUTPUT :
Over-bias
value
t-i
l-
.)\477rG:
7dB
+0.5d8
10.
Record lcvel
$*€L'&1.
'10-
1
SPEE0
stl : HIGIi
IINI IN:
1 kHzl-
1 0dBV
(316mV)
R559/R959
0UTPUT:
-10dBV
(316uV)
1
0-2
Check
tt't 2
VU
metef : 0 VU
+
0.5
VU
1 0-3
Same as above
F"lI
DBX
sw
:
IN
Check
4-.
.',
t
0UTPUT :
-10
dBV
+1.5d8
(266ltt/
-376tnv)
Same
as above
tiilt
rn-,,!
OBX sw:OUT
0UTPUI
sw :
I
Rt
PR0/
INPU)
No signal
F,f=kj
Check
tt'v?
OUTPUT :
Bias leak :
t\477Wt:
less than
-50dBV
(3.16mV)
After adiusting
overal
I
frequency
response
(ite|r|
12 and 13), re-do
this item's checks
and adjustment.
^ffiB
.
;Jffill$*l4tdr4ffiffi+tiJ:I#(12
13
E) ?{,
HF.rla.L.
1 1, Record head
az i |Iluth
S*H'.:
v
l:
.7r?].
11-1
SPttD sry
OBX
sw
L0t4
0tJl
LINI
IN :
1
kHzl-20dBV
(100|llv)
Record head
azimuth
scfeys
$*F'r'v
F
7y?7w
i
Phase :
0'
{ilffi
:
0"
Refer to
F is.2-21
-
2-25
lf
you
adjust azimuth
smerys, check
pafagraph
10-1-3 again.
7' ?
^iw|^
J
tfih't-/:BhH,
1 0-',1
-3
trtE*
r
.y
2
t
b
J.
t
12. Frequency fesponse
J*ltwi+t+
(SPtt0:
lllGH)
I L' I
SPIE0
sw : lllGtl
DBX
sw : OUT
IIt{I It{ :
400H2 &
2zkltz
/-20dBV( 1 00mV)
R567/R967
OUTPIJT :
tqual level at
both frequency
Wlili}s.othnsL(*16
j
j
iffi
I
tt-L
l
i
tINI
IN :
-10dBV(316[|V)
Check
tz'v?
Frequency response
: Fig.3-7
Eliffiffitf
:
E
3-7
12-3
Same
as above
Et
DBX
sw
: Il{
Same
as above
lql_t
Check
*r.'v ?
Sane as above
Itrlr
17
I TEt{
;ffiFE
StTT IIIG
dx. ,lt:
IliPUT SIGIiAL
X)itrA
ADJUST
iffiH-Ft
RISULT
tffitE
REMRKS
ffi+
13. Frequency response
ffli4&f+tt
(SPEtD:
L0l4)
1 3-1
SPIID ST
OBX
s'r :
: L0ll
OUI
LIilt
IN :
400H2 & 20kHz
/-30dBV(31.
6[lV)
R563/R963
OUTPUT :
[qual level at both frequercy
ffiHffiCIfrfii$L(116
j j
ffi
IJ-Z
LINI II{:
-20d8
(100|llv)
Check
1- - ,,,4
Frequency response : Fig.3-B
Eiffiffitt
:
El
3-8
I J-J
Same as above
l-til-.]L
DBX sw : li{
Same as
above
Itrtr
Check
*t'v7
Sane as above
ItrJl
14. Honaura I record i ng
t,,t1)W*E
't4-1
SPIID stv :
L0l,l
DBX stt
: OUT
RIC Ftit'{().
sw
:
0lll
:Oti, Cll2:0fI LIt{t Iil:
-30dBv(3'l.ornv)
t 304
I requency response : F i
g.
3-B
HtffiC+tt
:
El
3-B
1i-t
Same as above
Et
RIC FUI{C.
sw
:
()tl1:0FF,
Cll2:0N
Chect(
+-..,4
15
BIAS
FINI
)\472.2r4/
15-1
SPItD
sw: L0l,]
DBX sw :
OUI
LINt
I|{
:
1 kllz/-10dBV
(316mV)
Assurl|e 0n outout refefence level obtained \vhen the
BIAS FINI button is set t0 center. Turn
BIAS FINI
coll|pletely t0 left and right and check that output
level varies
between
-2.5
dB and
+1.5
dB or hisher
against
the
refefence lever.
B I
AS
FINI tJ.
alht+y,
tiltr.0>6o1g7tt##L^Jt.
Lf6.
BiAS FINE -t*.h*ffi*fil3,qLf:Wo>frfi
,arp73t8Flz^JHtf'l
L
-2.
5dB,
+1.
SdB
t)llgYLf
6ZL.*1-t'v2t6.
After
checking, be sure
t0 set BIAS FINE EAC|( t0 the center
Dosition
*
e'y
?l*,
BrAS
FINE 2r.4t+.>
t{ilECtFL(*i<
:
L
.
16. Di stort ion
E+
16- 1
Same as above
IAI
SPI
iD sw : tilG|l
LINE IN :
1 kHzl-10dBV
(316mV)
Check
tt'v ?
DBX
sw
:
both
Iil
& OuT
Total
hurnonic
distortion
+HiEifttE
less
than 0.8
x
17.
Signal to noise ratio
s/ti
!L
17
-1
SPtID sw :
l]lGtl & t0ll No
signal
*f=€
Check
tz'y?
iach
sPeed
ffiJE
:
better than 52 dB
18. Erase
efficiency
iH*4FR
18- 1
Record
a 1 kltz signal,
rewind
and
erase
portion
of
the recording. Playback
the tape t0 conpare
the
output level from
the original
'l
kHz recording
yith
the level from
the erased
pofti0n.
1 kilz
€Bt$**f**FL(--StiFi*,
*iH*#j}LiH*#$h0>
1 kHz
firr,^('Ltaflft.
Connection
is same as in
Fig.3-3, but
engage l kHz filter.
'l
kflz B.P.F.
lFffi.
Thc ryorst
value should
be within spec.
&Effin*t&tlEEf6:L.
Specifications should
be |net
even
yhen
BIAS FINI
is
turned
down to
its
minimum setting.
BIAS
Fllit
.;:t
ts&y'r?L1tffi
trEEf
zo
:
L
.
SPIEO
sy : |-il0tl
LINT IN:
1 kllzlodBV
(1V)
Check
7t'v
7
Better than 68
dB
19. Channel separat ion
Ar4'tV'
t)\V-:z
z
Y
t9-
1
.Connecti0n:
Fig.3-3,
but do not
cOnnect LINE lN
(CHz),
and
engaoe 1 kHz filter.
1 kHz
B,
P. F.
ffrffi
.Set
the deck to record
mode. Find
the difference
between the 1 kHz recOrded
p0fti0n (Ctl1)
and
check reverse
portion.
1 kHz
$*#*il,}
(Ctil)
L*f=+$**#r|
(CHz)
o
1ktlz
F4,fr)1v<tw)#tu[8.
cH1,
CHz
t
MtE
it:&# i:?!
\(
LA
t'y
?
.
SPttD sw : HIGII
LII.IE ItI
:
Ctl 1 : lkHz/
-1OdBV(316nV)
CH2:Nosiona
Check
ttv2
Better
than 50 dB
s
f
f
f
t*
18
,f_
a
3-5 FREOUENCY
BESPONSE
Itl)&fit+,lt
3-5-1
(dB)
+4
+3
o
-3
PLAYBACK
22k I Hz7
Fig.
3-S
Playback
frequency
response
(38
cm/s)
40
tk
Z?kt1z!
Fig.3-7
Overall frequency
response
(38
cm/s)
----------1
-6
t-------
J
\-----
---_J
IK
2Ok IHz]
Fig.
3-8 Overall frequency
response
(19
cm/sl
IN
0ur
3-5-2
(dB)
+6
+3
o
-3
-6
OVERALL
t------
--\
(
dB)
+6
(dB)
+3
0
-3
+3
o
-3
-
---
dBx
-
dBX
----
dBX rN
-
dBX
oul
400
20k
tHzl
Fig.
3-6
Playback frequency
response
(19
cmls)
I IEH
;FgFE
SITI I
t{G
eftE
Il{PUT
SIGNAT
xrtrE
ADJUST
iffifif-ff
llISULI
iffiG
RIHARKS
ffi*
20. RTC
HUTI
RtC
HUTI
funct
i on
YrX
20-1
.
Connection
: Fig.3-3,
but
ensaoe 1
kHz f ilter.
1 kHz
B.
p.
F.
l"fH.
.Record
a 1
kHz signal. Push
REC HUTI
button for
several
seconds.
(
At this time,
make
sure
LtO
0n the button
lights
)
Reyind
and
play
the tape.
Find
the difference
betleen
tfp 1 kHz
porti0n
and
"rec-mute"
pOfti0n.
1 kHz
{E€t$**L,
B+?
Rtc HUTI
fitffiL(*Ff=€#r}ttFb.
.o)i-ztH&Ls*Fg6j}l
*lEE#h t
o)flh
v,eratfiIef
6
.
SPTED
sw : HIGH
LINi
II{:
'l
kHzl10dBV
(316ltV)
Check
4-
-
,,,4
Bettef
than
65 dB
21. Phase
sh i ft
,/
I*./\
.
>/ /
L t' I
SPtiD
sw :
H IC,tl
L0ti
LINI
IN :
4Kllz sawtooth
trfrffi.
/-30dBV(31.6|l|V)
R576/R976
Cofrect
waveform
J&
Incorrect
yaveform
4E
19
$
3€
DBX PCB
ADJUSTMENT
TIOTES:
l.
This
section adjustment
is not
usually
needed
unless
an ad-
justor(sl
have
been
changed
0r a
component(sl
on
the
pC
board
have
sustained
damage,
since the PC
board
has
been
precisely
adjusted
in the factory.
2.
Turn the
deck
0FF to
prevent
accidental
damage
when
removing
or replaceing PC
board.
3-6-t
ADJUSTMETIT
p0tilTS
L0CAT|0trl
N*fiEF
3-6
DBX*+E+,f+EE#
rit
1
.
D B X
+
fh
o
&Y, F"
\ t*E li
f+'>
t;
r*
6
a
|tt,
i6'H I
A
DB X*tE
HfTd);iE45l*4iX<i
.
z.*tEr,I
+t t&rttt*?;t&,L't
j'y
+aEttR&tJJ )Th\
411t*';
(<
/:at\.
lcilRch
EilCODER
\L/)-t )
n27/W28
YGA
symmelry
VCA'>>./lt)-
R723/R724
l{ominal level
,S+v
^
)v
R753/R754
RilS
symmetry
RMS
7
>r/
l-
rJ
-
IIECODER
R627lR628
YCA
symmetry
vca->>t
t-t)-
R623/R624
llominal
level
z*Ev
^)v
R653/R651
RMS
symmetry
RMS'>>.'1
lt)-
Fig.3-9
3-6-2
VCA
SYMMETBY
AOJUSTMEITIT
WAVE FORM
VCA i>ttt)8#.iEY..
Fig.
3-1O RMS
symmatry adjustment
(incorrect)
(RMSr>./l'rffilE.TF)
Fig.
3'11
RMS
symmetry adjustment
(correct)
(RMS>>./l.U-aEE.H)
A
J\ .A
A t \ I
\ \ \
\ \
LI
\/
1
IVI
\ \ \/
V
\/
l V
20
OECODER
ADJUSTMET{T
ta-tgE.
preset
each
of
the
trimmers
of
the
decoder
section
on
the
PCB
to
their
approximate
center
positions'
'*Yltl{'Jl1iit&P>t
-lit'Et''t
6
'
Refer
to
Figs.
3-10
and
3-1
1.
TP.1 ITP.2:
Clean
200
Hz
sineryvave
*,
h
iENt
h\zo
OHz
a
tt'lilxiq
t-
f4
4
&
P601
-1
/P601
4
1oo
nil-e.z
dB
(3oo
mv)
Ftg.
J-lz
i
-'g
in*zx't*tt
-E{R (smvl'-l
}
)
l.l:*6&
lffiE'
P603-1
/P6O34
'
Xi"iiii""tv
stra.ight
horizontal
line
on
the.
;s;o;-i;;;'.
(Leiel
variation:
5
mV
or
less)
TP.1ITP.2
Staircase
waveform
[ffiiE
Flg.
J-
lJ
P603-1
/P6034
-8.2
dB
(300
mV)*
P6O1
-1
/P601
4
1 kAzl-8.2
dB
(300
mV)
Fig.3-14
4.
Decoding
level
*,+v<)vgtr
E:+V\)v
I h\
4a*IL.
P6O3-1
/P6O34
-20
dB
t1
dB
against
Ref .
1
{26.9
mV
-33.8
mV}
P601-1
/P6014
1-u'l.il-ta.z
dB
(95.4
mv)
F
is.
3-14
5,
Operation
level
7a-ffri*7r'Y2
P603-1
/P6034
+2O
dB
!1
dB
against
Ref.
1
Q.67
v
-3.38
V)
P601-1
/P6O1
-4
1
kHz/+l
.8
dB(954
mV)
P603-1
/P6034
+5
dB
tl
dB
against
Ref.
1
@77
mY
-602
mV)
P6O1-1 /P6014
1oo
tt.t-g:
dB
(3oo
mV)
6,
FrequencY
response
B;A*4+tt
P603-1
/P6O34
+9.4
dB
+1
dB
against
Ref .
1
(793
mV
-997
mV)
P601-1 /P6014
1O
kHz/-8.2
dB
(3OO
mV)
EI{COOER
ADJUSTMET{T
->a-rfi'g
ffioftheencodersectiononthePCBtotheirapproximatecenterpositions.
?i'f
$I'EtEti,&
1z
>
t
-iit-E
t:t
4
Refer
to
Figs.
3-10and3-11
TP.3/TP.4
Clean
2O0
Hz sinerivave
N\ ) r
ifr.t,
h\200H
z
a tLlt'ir?
l'
1+
4'J
P701-1/P701-5
1OO
H4-a.2
dB
(30O
mV)
F
tg. J-
l3
i-:'iip-nzt,te[-E*n6-v;1
F)
Ir./*6.r
f
ffi#.
P703-1
/P703-5
'
ni"ijtiu"rv
straight
horizontal
line
on
the
;t"lpJ
i"i!';.
tl6vet
variation'-q
TY 9'i":tl
R727 1R728
TP.3/TP.4
Staircase
wavelorm
II*fEi't
P703-1
/P7035
-8.2
dB {3O0
mV)*
P701-1
1P701
I
1 k{zt-82
dB
(3O0
mV)
Frg. J-
| /
10, Encoding
level
*.+v.<lvlfilE
*'+v
/\)v
2 h\
4a*.|U,-
P703-1
/P7035
-30
dB
lO.5
dB
against
Ref.2
(9.54
mV
-
10.1
mV)
P7O1-1
lP7O1-5
l k{zl-68.2
dB
(3
mV)
Fis.
3-17
11.
Operation
level
-r.-Sg1ft7z't2
tt.ii
YStS:."d'
asainst
Rer.
2
(9O0
mV
-
1.01
V)
P701-1 1P701-5
1 kHz/+11.2
dB
(3
V)
*1FV
r:)V
2 h:
i,ax.|u..
t1t#'jJS:
dB
asainst
Rer'2
{213
mV
-240
mV)
"f;;Jii:JldB
(3oo
mV)
1 2.
FrequencY
lSsponse
Elt&Ii4+t4
P703-1
/P7035
-4.7
dB
lO.5
dB
against
Ref
. 2
(166
mV
-186
mV)
P701-',t 1P7016
' 'io
unzt-e.z
dB
(3oo
mv)
e
21
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