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RT-160H(S)
CIRCUIT ADJUSTMENT
TP101 or
TP201
SETTING
POSITION
OF SWITCH
AND KNOB
ITEM
INPUT
BIAS
OSCILLA-
Figure 8—1
BIAS OSCILLATION
FREQUENCY/BIAS CURRENT
TION
L302
105 +5 kHz
FRE-
Record Mode
TP301
Erase
Electronic
QUENCY
ee?
Voltmeter
® Tape Selector Switch: Normal
® Dolby NR Switch: off
@ Input Selector Switch: Line
Frequency Counter
ADJUST-
MENT
POINT
REMARKS (CHECK)
LINE
nic voltmeter reads
Playback Mode
Out
580 mV.
2. See that the seg-
ments of up to0 dB
are lighting up.
If the segments of up
VITY
Ground
PLAYBACK
SENSI-
TIVITY
Test tape
MTT-150
Normal: 500 mV
Non-recorded
Tape
MTT-502
RECORD/
PLAYBACK
SENSI-
TIVITY
Non-
recorded
tape
(MTT-502)
315 Hz,
—20 dB
(1 V=0 dB)
L: VR103 | 1. Adjust the record level
LINE
R: VR203
knobs so that the
Electronic
out
electronic voltmeter
Voltmeter
reads 410 mV.
2. Playback the normal
tape recorded and
adjust the semi-
variable resistor so that
the electronic volt-
meter reads 345 —
Figure 8—4
RECORD/PLAYBACK SENSITIVITY
487 mV.
Playback Mode
Line
;
oF
Mic
«—*Line
in
out
Table *1
Lighting segments
Up to —1 dB
Cut the resistor R152 or R252
Up to +1 dB
Cut the resistor R150 or R250
TEIOSiCEWi
Erne
TPIO2
VR3O
Ic
tt
——-
@
——-TP301(ST-W)
| "hl
ee
°~TP203(SFW)
vR30i
———
a
ae
VR203
Of
TP 101-Ge— RIONIOON)
=
7P 20 — a= Re01lI00N)
VR20I
i
Electronic
R250(18OK)
R251(27K
LINE
LINE
Voltmeter
Bieuao
Low Frequency
In
out
RISK 27K)
Oscillator
Attenuator
| Record Mode
(
:ameah)
R 152 (82K)
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