I found the manual to be clear concise and complete. It was of immense assistance when removing the unit as the unit was over 22 years old and the wiring diagram was unobtainable from the manufacturer. The exploded drawings were clear as were the instructions and labels.
This manual was very good & was very helpful with repairs.
Always great & fast service from Owner's manual.
Text excerpt from page 9 (click to view)
ADJUSTMENT MAIN CB (Bottom View)
PRACTICAL SERVICE FIGURE
Tape speed: Wow & flutter: Take-up torque: F.F torque: Rew torque: Back tension: S/N ratio: Noise level: Erasing ratio: Test tape: 3000 Hz ± 90 Hz Less than 0.85% (RMS) (2.4cm) Less than 1.5% (RMS) (1.2cm) 4 ~ 12 g-cm 4 ~ 15 g-cm 25 ~ 60 g-cm Less than 1.2 g-cm More than 44 dB (DC. PB) More than 26 dB (DC. R/PB) Less than 1.5 mV (DC.Vol Max. PB) Less than 14 mV (DC. Vol Max. R/PB) More than 50 dB (1 kHz) 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)