Teac A-7300RX - Page 23

—
RECORD
BIAS
and
EQ
SW
at
position
2
—
Tape
SPEED
SW
.....
HIGH
(15
ips)
24.
Apply
signal
swept
from
30
Hz
to
24
kHz,
—8
dB
(308
mV)
and
record
on
a
blank
TEAC
YTT-8003.
25,
During
recording,
monitor
the
Tape
signal
and
adjust
equalization
VWR-552
(on
BIAS
OSC
UNIT)
for
both
channels,
and
check
for
readings
within
the
Response
Limits
chart.
See
Fig.
10-14.
26.
Apply
signal
swept
from
30
Hz
to
28kHz,
—28
dB
30.8
mV)
and
while
monitoring
the
off-the-Tape
signal
check
for
readings
within
the
Response
Limits
chart.
See
Fig.
10-14.
Tape
SPEED
SW
...
LOW
(7-1/2
ips)
27.
Apply
signal
swept
from
40
Hz
to
24
kHz,
—28
dB
(30.8
mV)
and
while
monitoring
the
off-the-Tape
signal
check
for
readings
within
the
Response
Limits
chart.
See
Fig.
10-14.
RESPONSE IN dB
FREQUENCY IN Hz
4
for Input Level
RESPONSE IN dB
FREQUENCY IN Hz
Fig.
10-14
Frequency
Response
—OVERALL—
2
24
— RECORD BIAS and EQ SW at position 3 ~
Tape SPEEDSW..... HIGH (15 ips)
28. Apply signal swept from 30 Hz to 24 kHz, -28 dB (30.8
mV) and record on a blank TEAC YTT-8023.
29. During recording, monitor the Tape signal and adjust
equalization VR-551 (On BIAS OSC UNIT) for both
channels. Check for reading within the Response Limits
chart. See Fig. 10-15.
Tape SPEED ..... LOW (7-1/2 ips)
30. Apply signal swept from 40 Hz to 20 kHz, —28 dB (30.8
mV).
31. During recording, monitor the Tape signal and check
also for readings within the Response Limits chart. See
Fig. 10-15.
RESPONSE IN dB
1
FREQUENCY IN Hz
On Tr oh
|
LOW (7-1/2ips) for Input Level -28dB |)
= pane = he mo
RESPONSE iN d8
FREQUENCY IN Hz
Fig. 10-15 Frequency Response -OVERALL-— 3
10-20 MONOPHONIC RECORDING CHECK
Set one REC MODE SW ON (LEFT or RIGHT) and the
other OFF.
BIAS and EQSW ............ 1
Tape SPEEDSW..... HIGH (15 ips)
1. Apply signal swept from 30 Hz to 28 kHz, —28 dB (30.8
mV) to LINE IN jacks and record.
Use record Test Tape YTT-8003.
2. If adjustment is required, adjust L-552 (on BIAS OSC
UNIT).
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