Error Detection

Error detection for tilt and telescope
- SCM detects an error if the following conditions occur during reproduction, driver in/out operation, or operation by Manual Switch.
- Error generation conditions
- Tilt: Less than 4 pulses within 1 sec.
- Telescope: Less than 4 pulses within 1 sec.
- Error clear conditions
- Tilt: Over 4 pulses within 1 sec.
- Telescope: Over 4 pulses within 1 sec.
Operation when an error is detected
- Tilt & Telescope operation stops regardless if the operation was service information, reproduction or driver in/out operation.
  But position operations other than that of the motor with an error are performed normally.
- When the Manual Switch is switched from OFF to ON, the motor moves to the position intended by the driver even if an error has occurred.
- If reproduction or driver in/out operation conditions are satisfied, then all the motors move to the target positions. But the motor with an error moves to the target position only after clearing the error.