Test Mode - Roland A-6 Service Notes

A-6

TEST MODE

Equipment:
. MIDI cable
. Foot Switch ( DP-2, or other suitable one )
. Hard disk drive unit ( equivalent to HDPA6-21 )
. Oscillator ( Wave form generator )
. Oscilloscope
. Headphones
* Other required equipment for testing the Multi I/O
Expansion A6-OP1:
. CD player with digital output connector ( coaxial type )
. DAT recorder or other similar recorder with digital input
connector ( coaxial type )
. Digital audio cable ( coaxial type )
. Zip drive ( SCSI type )
. SCSI cable ( DB-25 type )
. Audio cables ( XLR type, Male - Female )
Verifying version
While in the test mode, the top of the screen displays the
CPU software version and the system software version in the
format shown below:
1.00 1.000
Left: CPU version; right: system version
Entering the TEST MODE
1. While holding STATUS (track D) and EFFECT (track D)
buttons under AUDIO RECORDER/MIXER, turn on
POWER switch. See Note: in step 4 below.
2. When "CHECK A6-OP1 .." appears at the center of the
screen, release the buttons.
3. Test options will be displayed. Among the test options
shown below, options 1. LCD to 4. Switch are displayed on
the initial screen.
4. If the option board, A6-OP1 is installed, "OP-1" appears on
the upper right-side of the screen.
Note: When the Zip drive is to be used during test, connect it
before turning on the A-6. Set Termination to "ON" and
SCSI ID to "6".
5. As mentioned before, the top of the LCD screen display
shows the CPU software version (at the left) and the
system software version (at the right).
(LCD SCREEN) (TEST ITEMS)
>1. LCD LCD contrast check ( 1 )
2. LCD contrast LCD contrast check ( 2 )
3. LED LED check
4. Switch Switch check
5. Encoder Encoder dial check
6. fader Fader volume check
7. Pot Rotary volume check
8. Beam Beam check (*1)
9. Foot SW Foot switch check
10.MIDI MIDI check
11.IDE IDE drive check
12.SCSI SCSI check (*2)
13.Analog I/O Analog input and output check
14.Digital I/O Digital input and output check (*2)
15.Initialize Initialize the settings of the system data.
*1 This item is not used for A-6.
*2 This item is used at the installation of the optional Multi
I/O Expansion (A6-OP1).
Selecting these test items, press [ ] or [ ] to move the
cursor ">" appears on the left side of the LCD to desired
item. Press [ENTER/YES].
When the testing is completed the menu screen is
appeared again. After the test, the screen exits to the menu
screen.
6
Test Options
1. LCD
In the LCD CHECK screen, "Push [>] KEY" appears in the
middle of the LCD.
All LCD dots are turned on when [>(PLAY)] (LED blinks
green) is pressed here.
Press [>(PLAY)] again, all LCD dots are turned off.
Repeats turning the LCD on and off alternately each time
when [>(PLAY)] is pressed.
To finish the test, press [ (REC)] (LED blinks red), the
menu screen appears.
2. LCD contrast
In the LCD CONT CHECK screen, "CONTRAST = 5"
appears at the bottom of the LCD.
To change the contrast, rotate the [TIME/VALUE] dial.
When the value of the contrast "CONTRAST = ** " changed
0 to 15, "LCD OK!!" appears on the display.
To finish the test, press [ (REC)] (LED blinks red), the
menu screen appears.
3. LED
In the LED CHECK screen, "Push [<<] [>>] KEY" appears
on the LCD, then all LED's are lit.
When press [>>] at this point, only "DISK INDICATOR"
LED is lit. After this, the LED is lit in order of the top left
side each time the button is pressed.
("STATUS" has two color LED's so first the red LED is lit
then the green one is lit.) When the last LED is lit and
complete the checking of LED, all LED's are lit.
"LED OK!!" appears on the display.
To finish the test, press [ (REC)] (LED blinks red), the
menu screen appears.
4. Switch
In the screen, "0 67" appears on the right side of the LCD,
and " ***** " appears under that.
When press any button here, that pressed button's name or
mark is displayed in the " ***** " section while the button is
pressed.
The approximately button location is indicated on the LCD
each time the button is pressed. "* SW OK!!" appears
when all the buttons have been pressed.
To finish the test, press [ (REC)] (LED blinks red), the
menu screen appears.
5. Encoder
In the ENCODER CHECK screen, the graphics move to left
or right which response to the [TIME/VALUE] dial's
movement are displayed.
"Value: 50" appears under the graphics.
When rotate the [TIME/VALUE] dial at this point, the value
in the "Value: 50" is changed within 0-100.
When the value is changed within 0 - 100, "OK!!" appears
on the up right of the LCD.
To finish the test, press [ (REC)] (LED blinks red), the
menu screen appears.
Oct, 1998