Teac A-3300SX - Record Level and Overall Frequency Response

8-17, REC LEVEL SET
13. Place RECORD BIAS SW and EQ SW to the | position.
14. Thread a blank Test Tape YTT-8003 on the unit.
15, Place Tape SPEED to the 7-1/2 ips position.
16. Apply a 400 Hz signal at —8 dB (308 mV) to the LINE
IN jacks.
17. Begin recording.
18.
Adjust
VR-303/306
for
—8
dB
(308
mV)
at
OUTPUT
i
LLL
Pmealel
Ae
|
jacks.
FREQUENCY
WH
+
S
+
n
no
RESPONSE IN J8
Fig. 8-10 Frequency Response — OVERALL — 1
8-18 FREQUENCY RESPONSE —OVERALL—
NOTE: To avoid saturation of the tape these checks should
be
made
at
least
20
dB
below
the
specified
input
BIAS
and
EQSW
.........0
cece
cues
4
level.
Using
blank
Test
Tape
.....
TEAC
YTT-8023
Any
Bias
signal
feeding
into
the
test
equipment
;
;
should
be
filtered
out
by
adjusting
the
external
NOTE:
If
the
response
is
not
uniform,
the
heads
should
be
Bias
Trap.
cleaned
of
accumulated
oxide
and
dirt.
BIAS
and
EQ
SW
1
Then
adjust
VC-402/404
Bias
Adjuster
slightly
to
an
3
Jot
:
ene
ees
btain
the
best
frequency
response.
Tape
SPEED
SW...........
LOW
-
;
i
ae
19. Apply signal swept from 40 Hz to the upper frequency
limit shown in the applicable Response Limits Chart
below, and record this signal on the YTT-8003 test tape
for BIAS/EQ 1 and on the YTT-8023 test tape for
BIAS/EQ 2.
RESPONSE IN d8
1
20. During recording, monitor the tape signal and adjust
equalization L-301/L-303 for reading within the appli-
cable Response Limits Chart.
Tape SPEEDSW.......... HIGH
00
FREQUENCY IN Hz
T
21. Repeat this procedure for High Speed also, using the | m i /tee (ET/ET) tL |
. . . . . : : |
frequency limits given in the applicable Response Limits |
+4
Chart.
242
30
2-2
ae,
i
EL | 1 nna
+4b—
a 40 50 63 100 500 *K SK Sars OK 20K 50K
hy
FREQUENCY
IN
Hz
ra
3
g-2
7
=< r] Ty | | tips (27) ity
I 1 wba HH |
40.50
63
100
500
1K
5K
10K
6K
BOK
H
+3
FREQUENCY
IN
Hz
242
H
g-2 ct
+14 + #22 i ce
7-1/2ips
(4T/2T)
4
I
tT T Trt t
+4) t |
i i | 307 BO 100 qo0800 1K Bi F0K 22K 50K
2 +2 FREQUENCY IN Hr
‘ | |
2. ;
$ | - 3 t Fig. 8-11 Frequency Response —- OVERALL — 2
4 i
Cot Tt
1 as
40 50 63 100 $00 1K 8K 70K 24K BOK
FREQUENCY IN Hz