6
1. Head Azimuth Adjustment
Setting: • Test tape: TTS-930
• Tape speed: 2.4 cm
• Adjustment point: Head Azimuth Adjustment screw
Method: Playback the 5 kHz signal of the test tape (TTS-930)
and adjust screw so that the output becomes maxi-
mum.
2. Tape Speed Adjustment (2.4cm)
Setting: • Test tape: TTS-900
• Volume: MAX
• Adjustment point: SFR1
Method: Playback the test tape (TTS-900) and adjust SFR1 so
that the tape speed is become 3000
±
10Hz.
3. Tape Speed Adjustment (1.2cm)
Setting: • Test tape: TTS-910
• Volume: MAX
• Adjustment point: SFR3
Method: Playback the test tape (TTS-910) and adjust SFR3 so
that the tape speed is become 3000
±
90Hz.
Tape speed:
3000 Hz
±
90 Hz
Wow & flutter:
Less than 0.65% (RMS) (2.4cm)
Less than 0.65% (RMS) (1.2cm)
Take-up torque:
4 ~ 12 g-cm
F.F torque:
30 ~ 150 g-cm
Rew torque:
25 ~ 60 g-cm
Back tension:
Less than 1.3 g-cm
S/N ratio:
More than 50 dB (DC. PB)
More than 26 dB (DC. R/PB)
Noise level:
Less than 1.7 mV (DC.Vol Max. PB)
Less than 18 mV (DC. Vol Max. R/PB)
Erasing ratio:
More than 40 dB (1 kHz)
Test tape:
TTS-900 (Wow & flutter/Tape speed – 2.4 cm)
TTS-910 (Wow & flutter/Tape speed – 1.2 cm)
TTS-920 (Distortion/Output)
TTS-930 (Azimuth)
TTS-940 (REC/PB)
PRACTICAL SERVICE FIGURE
SFR3 (1.2cm)
RPH
SFR1
(2.4cm)
A MAIN C.B (BOTTOM VIEW)
2
1
3
J4
DC3V
S4
TAPE SPEED
1.2 2.4
VR1
VOL
J3
EXT MIC
J1
EAR PHONE
ADJUSTMENT
