Roland Va-7 - Test Mode - RAM Test; Test Mode - IDE Test; Test Mode - FDD Test; Test Mode - MIDI & Thru Test

14
VA-7
July, 2000
3.
RAM Test
Press the [NUMBER/3] button, the display shows:
To exit, press [BANK/5]
4. IDE Test
Press the [NUMBER/4] button the display shows:
Action: Before inserting the zip disk in the VA-7 zip disk driver, make sure that it has been formatted by a VA-7,
a G-1000 or an EM-2000.
Note: If the zip disk is not inserted before entering the test mode, the writing NOT READY will appear in the
drive checking space.
To exit, press [BANK/5]
5 FDD Test
Press the [NUMBER/5] button the display shows:
After a few seconds, the display will show:
Action: If the floppy disk has not been inserted in the drive, the following writing will be visualized on the bot-
tom of the lcd: PLEASE INSERT DISK.
If the result isnt OK, one of the following errors will appear on the display:
- Read Error
- Write Error
VA-7 FDD TEST
Writing...
Reading...
Verifiyng
>>>> OK <<<<
Press BANK 5 to exit
VA-7 FDD TEST
Writing...
Reading...
Verifiyng
>>>> OK <<<<
Please eject disk
IDE TEST
IDE: initializing...
** OK or ERROR**
Drive checking...
** OK or ERROR**
Press BANK 5 to exit
RAM TEST
OK or ERROR
Press BANK 5 to exit
- Verify Error
CAUTION: To check the FDD, use only a formatted disk, either DD or HD type.
To exit, press [BANK/5]
6 MIDI & THRU test
Press the [NUMBER/6] button, the display shows:
Cable connections to check the MIDI outputs:
IN/OUT Connection THRU/IN connection
While the VA-7 MIDI TEST screen display is shown, connect the Midi Cables between VA-7 and an external
instrument as shown in the above diagram.
Make sure that either the OK or the ERROR message appear on the display.
Then keep the cable connection between the IN and OUT sockets of VA-7 and connect VA-7 with another
external instrument by using its Midi Thru output and the second Midi Cable.
If the result of this Midi Test is OK, youll hear an intermittent sound coming from the second external instru-
ment.
To exit, press the [BANK/5].
7 Audio Test
Press the [NUMBER/7] button. Youve entered the Audio Test mode and the display shows:
Pressing the [Bank/1] button "Calibration", some sine wave sounds (frequency 415 Hz) will come out from the
Right and Left speakers.
Before calibrating the amplifier, move the volume potentiometer to the Max position then adjust the trimmers of
the amplifier channels (VR11: right Channel; VR12: left Channel) so that the oscilloscope will show a value of 20
Vpp across the speakers.
Note: The measurements on the R/L output have to be carried out with the jacks inserted in both outputs .
The sounds coming from the R/L Mono channels on the OUT output will be mixed and can be adjusted by the
Volume slider potentiometer.
The sine wave sound on the right and left channels will have a 415 Hz frequency and a 3Vpp amplitude.
VA-7 Audio Test
BANK 1 Calibration
BANK 2 Left
BANK 3 Right
Press BANK 5 to exit
In Out Thru
External Instrument
In Out Thru
Rear side of VA-7 bottom cabinet
VA-7 MIDI TEST
Connect Midi Out = to => Midi A In < OK or Error >
Press BANK5 to exit