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CT-7R/6R
RECORDING
LEVEL ADJUSTMENT
Setting:
Mode
............-..
Record
Record/Play
back
Input Signal ..........
333Hz, - 10dBv
(from INPUT)
(316mV)
Test tape
............
STD-608A (NORM)
STD-603 (CrO2)
STD-604 (METAL)
AC mV meter .........
TP601 of the DOLBY
NR assembly L
TP601 of the DOLBY
NR
assembly R
REC HEAD
TP6O1 (Lch)
STD 508A
TP6O1 (Reh)
O
REC HEAD
333Hz
a yOdBv
STD-608A
{316mvV)
OUTPUT
TP6O1 (Lch)
TP601 (Reh)
[ -7,7d8v+1.5dB
Procedure:
1.
Set the test tape STD-608A
and adjust the
INPUT level control so that the AC mV meter
reads - 7.7dBv (0.41V).
2.
Set the DOLBY
NR
switch to ON
position.
Set
the
unit
to
the
FWD
position
and
record and play back the input signal onto the
STD-608A.
Adjust
the
VR601
(Lch)
and
VR601
(Rch) so that the AC mV meter reads
-7.7dBv (0.41V).
3.
Set the test tape STD-603
and DOLBY
NR
switch
to the ON
position
and
record
and
play back the input signal ontothe
STD-603.
Confirm that the AC mV meter reads - 7.7dBv
+1.5dB.
4.
Set
the test tape STD-604
and DOLBY
NR
switch to the ON position and record and play
back
the
input
signal
onto
the
STD-604.
Confirm that the AC mV meter reads - 7.7dBv
+1.50B.
LEVEL METER
CHECK
Setting:
MODE
.............
Record pause
Input signal
..........
333Hz, - 10dBv
(from INPUT)
(316mV)
AC mV meter.........
TP601
of the DOLBY
NR assembly L
TP601
of the DOLBY
NR assembly R
REC HEAD
<C
TP6O1 (Lch)
TP6O1 (Reh)
}
~7.7dBv+2dB
Procedure:
Adjust the INPUT level control so that the level
meter reads 0 VU. Then check the AC mV meter
reads - 7.7dBv+2dB.
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