Yamaha Vl70m User Manual

97
The Utility Mode
The UTILITY mode provides access to a range of parameters that affect basic
operation of the VL70-m, and some functions that contribute to system flexibil-
ity. Select the UTILITY sub-mode menu from the PLAY mode by pressing the
[UTILITY] button. Four sub-modes are available:
The SYSTEM sub-mode includes parameters that affect overalloperation of the VL70-m. Page 98.
The Dump Out function allows VL70-m setup and system
exclusive data to be transmitted to a second VL70-m or an
external...

98
The System Parameters
The UTILITY SYSTEM sub-mode includes parameters that affect overall operation of the VL70-
m.
M.Tune
•Master Tuning
•Settings: -102.4c … +102.3c
Fine tunes the overall pitch of the VL70-m in 0.1-
cent steps (a “cent” is 1/100th of a semitone). The
maximum minus and plus settings produce a
downward or upward pitch shift of just over a
semitone. A setting of “+000.0” produces no pitch
change.
RcvSysExcl
•System Exclusive Receive
•Settings: off, on
This parameter determines whether...

99
Contrast
•Display Contrast
•Settings: 1 … 8
Sets the contrast of the VL70-m display for
optimum visibility. The best setting will depend on
your viewing angle and the ambient lighting
conditions. A setting of “1” produces the strongest
contrast, while a setting of “8” produces the
“softest” contrast.
DumpIntrval
•MIDI Bulk Dump Interval
•Settings: 50, 100, 150, 200, 300
Sets the length of time intervals to be inserted
between data blocks during a “Dump Out” opera-
tion (page 100). The required...

100
The Dump Out Function
The Dump Out function allows VL70-m setup and system exclusive data to
be transmitted to a second VL70-m or an external MIDI storage device such
as the Yamaha MDF2 MIDI Data Filer via the MID OUT or TO HOST connec-
tor.

 NOTES
• The MIDI Device Number of the receiving device must the same as that set via the VL70-
m PLAY mode “DevNo.” parameter (pages 32 and 41).
• You might have to try a few different DumpIntrval parameter (page 99) settings before
the receiving device will...

101
2. Press [ENTER]
Press the [ENTER] button to go to the confirmation/select display for the
selected data type.
3. Select “ALL” or a Single Voice for CUSTOM or INTERNL
If you have selected the CUSTOM or INTERNL data type, you can use the
VALUE [-] and [+] buttons at this point to specify whether you want to
transmit “ALL” voices from the CUSTOM or INTERNAL bank, or a single
voice: when the CUSTOM data type is specified select “C1” through C6, or
when the INTRNL data type is specified select “I01”...

102
The Initialize Function
The VL70-m Initialize function includes two sub-modes — “Factory Set”
and “System Initialize”. “Factory Set” initialization restores all VL70-m data
to the initial factory settings … including all Custom and Internal voices.
“System Initialize” restores all system setup parameters (page 98) to their
default settings.
1. Select an Initialize Sub-mode
Use the SELECT [] buttons to select Factory Set or System
Initialize.
2. Press [ENTER]
Press the [ENTER] button to go to the...

103Appendix
Appendix
Show Control Change
This function displays the MIDI control change
data string required to control the parameter
currently displayed in the PLAY mode from an
external MIDI device. The MIDI data is displayed
in hexadecimal format.
To engage the Show Control Change function first
select the desired parameter in the PLAY mode,
then “double click” the [ENTER] button (i.e. press
the [ENTER] button twice in rapid succession).
The Show Control Change display will appear.
Show Exclusive
This...

104
The Message Window
The VL70-m Message Window function makes
it possible to display text messages up to 32
characters in length on the VL70-m display in the
PLAY mode. The messages can be transmitted in
the form of a data string from an external MIDI
device, and will appear on the VL70-m display for
about 3 seconds. A message could be placed at the
beginning of a song data file, for example, so that
the title of the song and other information appears
on the display at the beginning of the song....

105
Bitmap Window
The VL70-m Bitmap Window function makes
it possible to display 16 x 16 dot icons and
simple animation sequences on the VL70-m
display in the PLAY mode. The bitmap data can be
transmitted in the form of a data string from an
external MIDI device, and will appear on the
VL70-m display for about 3 seconds.

 Bitmap Window Data Format
The format for message window data is as follows
(hexadecimal format):
F0 43 1n 4C 07 00 00 xx xx .... xx xx F7
“n” is the device number minus one. If the...

106
After converting all 48 rows in the example we
have the following hexadecimal bytes:Checksum
Some VL70-m system exclusive message
require a “checksum” — a data byte which is
used to check for errors during MIDI data transfer.
The checksum is calculated using the system
exclusive message start address and data (data
size). A method of calculating the checksum is
given below, using a simple data format as an
example.
1. Convert the hexadecimal start address and
data bytes (underlined in the example)...