18
CASSETTE INTERFACE (CONT.)
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TO PLAY PROGRAMS FROM TAPE INTO THE DMX:
1) Connect the Cassette Recorder to the Cassette Interface Jacks
on the rear panel of the DMX as described in "CASSETTE
INTERFACE CONNECTIONS", above.
2) Set the playback volume on the tape recorder to 3/4 of
maximum.
3) Enable the Cassette Interface by throwing the switch on the
rear panel.
4) Press the PLAY switch on the tape recorder. You will now be
able to monitor the tape through the MIXED OUTPUTS of the DMX
5) As soon as the "leader" tone is heard, press the CASSETTE
PLAY switch on the DMX (it shares a button with the EDIT
switch ). At least three seconds of the "leader" tone must
come between pressing PLAY and the rough sound of the memory
information. The display will read "PLAYING DATA" from the
time the switch is pressed until the information transfer
has been completed. The display will then read "DATA
COMPLETED".
6) If an error is detected, the display will read "ERROR IN
DATA".
*** NOTES ***
If the MEMORY PROTECT SWITCH on the rear panel of the
DMX is switched ON, the display will read "MEM.
PROTECTED" and the DMX will "beep".
Some cassette recorders invert the phase of the
signal in the process of recording and playing back.
If your cassette recorder NEVER plays data properly,
the inverted phase may be the problem. The software
version 2.10 (released in June 1982) enables inverted
data to be read properly by the DMX Cassette
Interface. To set the DMX to read inverted data,
hold the "0" button while pressing PLAY. The first
digit of the display will show a "!", indicating that
the DMX is expecting inverted data.
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