Operating instructions

3-11
D. TROUBLESHOOTING PROCEDURES (cont'd)
Trouble Probable Cause Recommended Action
You hear an echo in a small
theatre.
Surround sound delay set improperly. Call service engineer.
The sound level in bypass is
higher or lower than the normal
sound level.
Adjust with the front panel fader since other
parts of the system may be malfunctioning.
Call service engineer.
There is distortion when you play
non-sync sound, but sound from
the film is not distorted.
The non-sync source is introducing distortion.
Malfunctioning Cat. No. 512 main board.
Change the non-sync selection in case the track
being played is distorted. If you have control of
the output level of the device (gramophone,
cassette deck, CD player, etc.) it will be useful
to turn down its volume especially if you have
to operate the non-sync with the fader a long
way below 7. If this does not help, try a
different device. If the distortion goes away,
you have found the problem. If changing both
the device and the selection does not eliminate
the distortion, the problem is in the CP45.
Call service engineer.
Sound from a mono film is
distorted but stereo film sound is
ok.
Incorrect setting of Dolby Tone. Readjust Dolby Tone level.
Call service engineer.
Sound from a mono film is
distorted as is sound from the
center channel of a stereo film.
Malfunctioning power amplifier.
Malfunctioning loudspeaker.
Interchange power amplifiers to determine if
distortion is still present.
Interchange speakers to determine if distortion
is still present.