Service manual for the Dual C 839 RC stereo cassette recorder, covering technical data, functional description, alignment, wiring diagrams, and replacement…
This document is the official service manual for the Dual C 839 RC stereo cassette recorder, published in May 1980. It provides comprehensive technical data and functional descriptions for the device's AF section, recording, RF generator, and display systems. The manual is designed to guide technicians in maintenance, fault troubleshooting, and repair procedures. This manual is written in German.
| Channel separation at 1000 Hz | 35 dB |
|---|---|
| Tape speed | 4.75 cm/s |
| Oscillator frequency | 105 kHz |
| Flutter and wow W.R.M.S. | ± 0.03% |
| Power consumption | 40W |
| Line voltage | 115 volt and 230 volt |
| Line frequency | 50/60 Hz |
The tape speed is 4.75 cm/s.
The channel separation is 35 dB between stereo channels.
The oscillator frequency is 105 kHz.