I Recently purchased yet another Service Manual from Owner-Manuals.com, this time for a Sony EVS700ES/UB Videocassette Recorder. The Manual was available for upload within two hours and is an Extremely Good copy, as some of this I was able to enlarge to get even better detail.
Once Again, Very happy with the result!
A good and useful manual. With these, We was abled to isolate and pin point the component that was causing the problem. The total time spent in troubleshooting is very much reduced.
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)