Advertisement
Normal Bias Adjustment
Setting:
REC LEVEL knob:
standard record position
(See page 10.)
Procedure:
1. Mode: simultaneous REC/PB
LINE
IN
10 kHz, 25 mV (-—30 dB)
AF OSC
315 Hz, 25mV
(-30 dB}
no-signal tape
6)
eke
CS- 122
0
o—o
o—o
LINE OUT
2.
Adjust RV152 (L-CH) and RV252 (R-CH) so that
the output level of 10kHz is 0.2dB to 0.8dB with
respect
to that
of 315Hz.
HX
PRO
Operation
Check
Note:
This check should be done after Normal Bias
Adjustment
in the same
connection.
Procedure :
1.
Mode:
simultaneous
REC/PB
2.
Record and playback 10kHz 0.25V (-10dB)
signal
in both
modes
of HX
PRO
ON
and
OFF.
3. Confirm that the playback output level when ON
is 1dB or more with respect to that when
OFF.
| TC-K222ESG/K850ES
Metal
Bias Adjustment
Setting :
REC
LEVEL
Knob:
standard record position
(See page
10.)
Procedure :
1.
Mode:
simultaneous
REC/PB
31SHz, 2SmVv( —3008)
AF OSC
10kHz, 25mV( —30¢B)
no- signal tape
CS- 413
10kQ)
LINE INPUT
LINE OUTPUT
2.
Adjust
RV574
so
that
the playback
output
level
of 10kHz in R-CH is 0.2dB to 0.8dB with respect
to that
of 315Hz.
Calibration
Meter Adjustment
Setting : CALIBRATION
switch:
ON
Procedure :
1.
Mode:
stop
VTVM
no-signal
tape
CS- 122
8kHz
2.
Adjust RV572
for 400Hz
and RV571
for 8kHz
to
obtain
oscillation
level
within
10 +0.5dBs
respectively.
3.
Put the set in record
mode
and adjust RV131
(HIGH) so that HIGH FREQ segments in the CAL
LEVEL
meter
light thoroughly
up to 0 VU
as
shown
in the figure below.
Segment
(a) may
flicker.
4,
Preset RV231 (LOW) so that segment (a) in LOW
FREQ
CAL
LEVEL
meter
lights.
Then
adjust
RV231
to the point where segment (a) goes out.
HIGH : LEVEL
(a) may
flicker.
+41GH
t
REC CAL FREQ
| am em oe we
oe
oe ee om on
LOW
we
one oom can con oon Om owe ome oD ee
FREO
4
REC EO CAL
NORM
(a)
LOW:
LEVEL (a) must
not flicker.
oe
Advertisement
