Although printing quality is not the best, the manual was very helpful in order to reactivate this ancient but still good electronic musical instrument.
Text excerpt from page 6 (click to view)
Dolby Pro Logic Use this mode for films recorded using Dolby Pro Logic Surround. The surround channels have a 20-ms delay. Phantom This mode creates surround sound from stereo recordings. The center channel is not used and the surround channels have a 20-ms delay. Simulated This mode provides surround sound with no delay for the surround speakers. This is not a Dolby mode. 3-Stereo Mode Use this mode to play back Pro Logic-encoded films when you do not want the surround channels to play. Stereo This mode plays a recording in traditional two-channel stereo.
The test tone is used to calibrate the volume settings of the speakers. A static noise will be heard cycling, in order, from the front left, center, right, and both surround speakers. Using the remote control, adjust the Center and Surround levels until the volume of all the speakers is the same during the test. Note: The test tone is used to calibrate the performance of the system. When listening to an actual recording, the volume level of the surround channels is generally much lower than that of the front channels. In fact, when listening to a movie, virtually all of the dialogue and a substantial amount of the effects are reproduced through the center channel.