Technics RS-615US-D - Page 17

MEASUREMENT & ADJUSTMENT
lkHz 2kHz 11kHz(Normal)
Fig. 31
Adjustment—for overall frequency response of CrO2and
Fe-Cr tape
Connection points (G) for overall
frequency response of Cr0z
Connection points (E) for overall (L channel)
frequency response of Fe-Cr tape
(BOTH channel)
Connection points (F) for overall
frequency response of CrOz
(R channel)
Fig. 32
Adjustment for Fe-Cr tape
lf measured value decreases at middle and high frequency range by “Fe-Cr”
tape as shown in fig. 33, P.C.B. connection points (E) should be shorted
(See fig. 32).
Bias current is increased about 10 percent which is the same as the bias
current for “NORMAL” tape.
+5dB
+ 3dB
0dB
Cr,
ee 3dB
1kHz 2kHz
Fig. 33
The corrected value
50Hz [ee TkHz | 4kHz | 8kHz | 10kHz | 12kHz | 14kHz
about
about ; about | about | about | about | about | about
~0.5dB]—1.0¢dB)—0.2¢B)
+
1.04B]
+2.0dB
$2.2d8|+2.2¢8
+2.2dB
REMARKS
Note:
@ This adjustment is for
both channel.
@) Low frequency range
will be decreased.
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