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2.
Head
Azimuth
Adjustment
3.
Recording Bias Adjustment
Procedure:
Control/Switch Setting:
1.
Mode: record
PB
VOL
control:
mechanical midway
1.
1 kHz, -80 dB (77.5 BV)
2.
6 kHz,
—80dB
(77.5 UV)
3. 250 Hz, —80 dB (77.5 KV)
Procedure:
1.
Mode: playback
af osc
blank tape
(63 tHe, ~10 dB)
I
C}
cade
O
attenuator
—_—
eae (CO
PEE
MONITOR
2.
Mode : playback
recorded
7
:
3
<
!
portion
VTVM
Adjust
adjusting
screw
for
the
biggest
peak
VTVM
reading.
Note:
Several peaks may appear, take the biggest.
head azimuth adjusting screw
Adjust PB
VOL control for
—10 dB (0.25 V)
OE
OILS
III IL
|
ie
250 Hz
1 kHz
6 kHz
3.
If necessary,
vary
resistance
by changing
re-
sistor connection as shown.
:
Lower resistance value decreases high-frequency
level.
ro
4.
Repeat steps | through
3 until desired results
are achieved.,
= 44
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