Data Save And Load - Roland VG-8EX Service Notes

VG-8EX
LOGIC TREE B
No sound.
Check +5V, +7V and -7V on main board.
Correct voltages?
NO
YES
Go to test mode, "12. LINEOUT test"
Check IC57B pin 7 and IC57A pin 1 for approx.
5.2Vp.p sine wave.
Sine wave?
YES
NO
Check pins 14-16 of IC54 (PCM06AU)
on main board for presence of signal.
YES
Signal present?
NO
Go to test mode, "11. CSP test"
NO
Pass the test?
YES
Go to test mode, "10. GK IN test"
Correct
level meter reading?
YES
NO
Check output pins of ICs 35, 40 and 45 for
presence of guitar signal.
Signals present?
NO
YES
Check main board: From output of ICs 35, 40
and 45 to input of 22.
12
* : Also refer to circuit diagram and test mode description.
Check power board.
Check main board: from ICs 17A and IC17B
to MIX OUT.
Check main board: ICs 54 (DAC), 55 and 56
and associated components.
Check main board: ICs 24-31 and associated
components.
Check main board: IC22 and associated
components; from IC22 output to ICs 24 and 25.
Check input to ICs 35, 40 and 45 of main board.

DATA SAVE AND LOAD

1. Saving data onto backup memory card (M-512E)
(a) Saving user patches (UA11-UB84) and system data
to memory card
(1) Insert a memory card into MEMORY CARD slot
on VG-8EX
(2) Set the write protect switch on the card to off.
(3) Turn power on and press [SYSTEM] button.
(4) Press [F6] "CARD" to enter "Card Transfer" mode.
(5) Using [CURSOR] buttons, select "Function".
Using [VALUE] dial, select "VG-8EX -> CARD".
(6) Using [CURSOR] buttons, select "Target".
Using [VALUE] dial, select "Patch&System".
(7) Press [F1] "XFER". LCD will show:
"Are You Sure?" or "Format This Card. Are You
Sure?" (If not a VG-8EX format card)
(8) Press [F1] "OK". LCD will show "Completed".
(9) Set the write protect switch on the card to on and
pull out the card.
(b) Loading user patches (UA11-UB84) and system data
back to VG-8EX memory
(1) Insert the memory card into MEMORY CARD slot
on VG-8EX.
(2) Turn power on and press [SYSTEM] button.
(3) Press [F6] "CARD" to enter "Card Transfer" mode.
(4) Using [CURSOR] buttons, select "Function".
Using [VALUE] dial, select "CARD -> VG-8EX".
(5) Using [CURSOR] buttons, select "Target".
Using [VALUE] dial, select "Patch&System".
(6) Press [F1] "XFER". LCD will show "Are You Sure?".
(7) Press [F1] "OK". LCD will show "Completed".
(8) Pull out the card.
2. Creating backup copy using bulk dump feature
(a) Trasferring user patches (UA11-UB84) and system
data from VG-8EX to a sequencer
Note: Use a sequencer having exclusive inforamtion
receive/record capability.
(1) Hook up VG-8EX MIDI OUT socket and
sequencer MIDI IN socket through theMIDI cable.
(2) <VG-8EX>
Turn on power and press [SYSTEM] button.
(3) <VG-8EX>
Press [F3] "MIDI" to enter "System MIDI" mode.
(4) <VG-8EX>
Using [CURSOR] buttons, select "Bulk Dump".
Using [VALUE] dial, select "Patch&System".
Jul, 1998