8
f. OPTIONAL BOARD (A6-OP1) ANALOG INPUT/OUTPUT TEST
Connect [INPUT](LR) and [OUTPUT](LR) of the A6-
OP1 with a pair of XLR-Type audio cable.
( [OUTPUT]L -> [INPUT]L, [OUTPUT]R -> [INPUT]R )
Turn the [CD] and [VCR] volume on the INPUT MIXER
section to the direction of 10 o'clock.
Connect the oscillator ( wave form generator ) to [CD]
INPUT, Input the sine wave with 1kHz and 640mVp-p.
Connect the oscilloscope to the [MASTER] OUTPUT.
If the connection is correct, the sine wave about 8Vp-p
is output.
To finish the test, press [
●
(REC)] (LED blinks red), the
menu screen appears.
14. Digital I/O
In the DIGITAL CHECK screen, "IN:--------" appears on
the left side of the LCD. Press [1/(5)] on the LOCATOR
section to change "IN;COAX."
* "IN:OPT" is not used for A-6.
a. DIGITAL INPUT TEST
Connect the CD player's digital output connector
(coaxial-type) and A6-OP1's [DIGITAL IN] connector
with digital audio cable (coaxial-type).
Connect the headphones to A-6's [PHONES]
connector.
When the power of the CD player is OFF, "Unlock"
appears on the right side of the LCD.
"Unlock" is changed to "Locked" when the power of the
CD player is turned on.
When playing back the CD, the sound can be heard
from the headphones if the connections are successful.
b. DIGITAL OUTPUT TEST
Connect the A6-OP1 [DIGITAL OUT] connector and
output and DAT
recorder's digital input (coaxial-type).
DAT recorder is now in the monitor status for the digital
input.
Connect the headphones to DAT recorder.
At the test (a.), if the CD playback sound can be heard
from DAT recorder, the test is successful.
To finish the test, press [
●
(REC)] (LED blinks red), the
menu screen appears.
15. Initialize
Perform the following procedure when the letters of the
system parameter become impossible to read by the
destruction of the system parameter in the flash memory,
or you wish to return to the factory settings.
After entering the INITIALIZE screen, press [UNDO].
The system parameter and user effects patch starts being
initialized.
The initialized system parameters are as follows;
system common parameters, system MIDI parameters.
Press [
●
(REC)] (LED blinks red), the menu screen
appears.
●
About the destruction of the flash memory
If the flash memory (IC9 on the Main board) is damaged or
destroyed from the malfunctions of the software / hardware,
following messages are appeared on the LCD.
If these messages are appeared when turning on the power,
re-install the system software is required.
If there is a still problem, exchange the flash memory in case
of the flash memory's default. And re-install the system
software.
If the flash memory is replaced with new one, re-installation of
the system software and "Initialize" operation above are
required.
The latest system software of the A-6 is stored to the floppy disk
named "A-6 System Ver. 1.xx SMF" as the standard MIDI file
format (SMF format).
Check the following SMF's included to the floppy disk.
Update A-6 system software by following the procedure
described below.
1. Connect a MIDI cable between two connectors; MIDI OUT
connector of the MIDI Sequencer that can play back SMF
data, and MIDI IN connector of A-6.
It is convenient to use the MIDI Sequencer such as a SB-55
sound brush that can play back some SMF's continuously.
2. While holding down Track A's [EFFECTS (BAL/EQ/FX)], turn
on the A-6's power. MIDI update screen is displayed.
3. Check the message "waiting MIDI... " is appeared on the
display. Playback the SMF data in order the number 1 to 8.
While the data is being received "Receiving.. (x/8)" is
displayed and the pad indicator (PAD) blinks. ("x" is the SMF
data number being received.)
4. When all of SMF data is received "Update System? (Y/N)" is
appeared on the display. Press [ENTER/YES].
Note: Never turn the power off while the message "* KEEP
POWER ON *" is being displayed.
5. When "Update Complete" and "You may TURN OFF" are
appeared on the display, turn the power off and turn it on
again.
Now complete the update A-6 system software.
A-6 SYSTEM SOFTWARE UPDATE USING THE SMF
(Ver. Up Disk(SMF) P/No.17048933)
A-6
Oct, 1998
<< EMARGENCY >>
SYSTEM is BROKEN! Please consult qualified Roland Service.
A-6 System Ver. 1.xx SMF disk
A6#1 .MID
A6#2 .MID
A6#3 .MID
A6#4 .MID
A6#5 .MID
A6#6 .MID
A6#7 .MID
A6#8 .MID