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RT-160H(S)
)
|
MECHANICAL ADJUSTMENT
REMARKS
(CHECK)
(More than 150 g)
ADJUSTMENT
Driving
Tape tension
power
megurering
cassette
TW-2412
Torque
Torque meter
Play TW-2111
Fast-forward
TW-2231
Rewind
TW-2231
Tape speed | Test tape
Variable resistor | 2,980 + 20 Hz
MTT-111
on motor
(Play : 35-60 g-cm)
(Fast-forward:
85-115 g-cm)
(Rewind:
85-115 g-cm)
Test tape
Azimuth adjust-
Sine waveform
MTT-114
ing screw
attains the
maximum.
Dual-trace
Electronic
Oscilloscope
Voltmeter
LINE
Out (L-ch)
Playback Mode
LINE
Out (R-ch)
Figure 6—1
AZIMUTH
As Smail ss Possible
Figure 6—2 AZIMUTH WAVEFORM
Record /Playbeck
Frequency Counter
Playback Mode
Figure 6-3 TAPE SPEED
TEST TAPES FOR MEASUREMENT
COMPACT CASSETTE TYPE
TITLE
FREQUENCY/
| APPLICATION
LEVEL
FLUTTER
MTT-111
3 kHz, -10 dB
Tape speed,
Wow and flutter
check
6.3 kHz, —10dB
| Head azimuth
AZIMUTH
MTT-113C | 8 kHz, —10 dB
adjustment
DISTORTION
MTT-118
1 kHz, -10d8
Distortion check
tevel adjustment
MTT-114
10 kHz, —10 dB
DOLBY LEVEL}
MTT-150
Dolby B-Type
Dolby NR
CALIBRATION
Tone 200 nwb/m | B-type level
adjustment
2
BLANK
MTT-50
Record fre-
quency check
TORQUE METER FOR COMPACT CASSETTE
MODEL
| MEASUREMENT
APPLICATION
RANGE
TW-2111
10 — 100 g-cm
Normal : Playback torque
[= 10 gam | Normal Beck wnson
ed
oe
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