Alesis ALESIS M20 owner manual NEW RS-422 Device ID

M20 Software Version 2

DECK STANDBY MODE

A deck standby mode has been added as a user-optional transport load condition. Place the M20 in Deck Standby by pressing the Peak Mode and Stop buttons simultaneously. In this mode, the cassette remains loaded in the transport and the tape is completely withdrawn into the cassette. When the tape is withdrawn, the drum is turned off and drum hours do not accumulate. The counter display will indicate “DECK STANDBY” until it is refreshed by another operation; however, the transport will remain in standby. Pressing any transport control button (Rew, FFwd, Stop, Play, Rec, Loc, Loc 0,) will first rethread the tape, then perform the selected transport operation.

AUTO-PARK AFTER FORMATTING

When a tape format is completed by reaching the end of tape, the tape will autolocate to 00:00 ABS time and park, i.e., enter deck standby mode until another transport operation is performed.

DEFERRED EJECT

Deferred Eject has been added. Pressing Eject when a locate is in progress will defer the Eject action until the locate is complete. Pressing Eject twice before the locate is completed, will abort the locate and result in an immediate tape eject.

NEW RS-422 DEVICE ID

The M20's RS422 device ID is now a BVW-75 instead of a BVU-950. Many Sony 9-pin editor/controllers will identify the M20 as this standard Betacam SP videotape recorder. Changing the ID to the BVW-75 specifically improves performance with AVID’s Media Composer Version 7.1.

IMPROVED SMPTE CLOCK SOURCE RECOGNITION

The algorithm for determining if a SMPTE clock is valid has been improved to increase transport and drum motor performance.

SAMPLE RATE CHANGE DURING PLAY/RECORD

Sample rate can no longer be changed when the tape is in Play or Record. This guarantees the output of MTC at the proper frequency for the selected sample rate.

M20 ADDENDUM 2.1 MA-7