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May, 2007 V-SYNTH/GT
Test Items
1. VERSION CHECK
This verifies the version of the main program.
fig.01-version.eps_90
Before advancing to the next test item, “2. DEVICE,” connect MIDI IN and
MIDI OUT with the MIDI cable.
Pressing [ ] advances to the next test item.
2. DEVICE
This tests various devices.
A screen like the one shown below is displayed on the LCD, and a total of ten
items are automatically tested.
fig.02-device.eps_90
If all results are OK (acceptable), execution automatically advances to the next
test item.
If a problem occurs, NG (“not OK”) is displayed and the location of the
problem is noted. (No automatic advance to the next item occurs.)
3. PEDAL
This performs verification of pedal operation.
A screen like the one shown below is displayed on the LCD.
fig.03-pedal.eps_90
Depress and return the EV-5 pedals in order.
When the values have changed from 0 to 127, OK is displayed.
If all results are OK (acceptable), execution automatically advances to the next
test item.
4. PHONES
This tests the audio signal (L and R) output from the PHONES connector.
A screen like the one shown below is displayed on the LCD.
fig.04-phones.eps_90
Slowly turn the VOLUME control to the MAX setting.
The audio signal input from the INPUT (L/R) connectors is output from the
PHONES connector.
If no problem is encountered, press [ ] to advance to the next test item.
LCD screen display Meaning
1: WSP Make sure IC54 (MAIN) is mounted correctly.
2: WSP (SD-RAM) Make sure IC58 (MAIN) is mounted correctly.
3: EE-PROM Make sure IC53 (MAIN) is mounted correctly.
4: NOR-FLASH Make sure IC20 (MAIN) is mounted correctly.
5: NAND-FLASH Make sure IC21 (MAIN) is mounted correctly.
6: SD-RAM Make sure IC34 and 35 (MAIN) are mounted
correctly.
7: S-BOARD Make sure IC2, 4, 29, 31, and 33 (S-BOARD)
are mounted correctly.
8: LCDC Make sure IC38 (MAIN) is mounted correctly.
9: SUB-CPU Make sure IC20 (SUB) is mounted correctly.
10: MIDI Make sure MIDI IN and MIDI OUT (JK1) are
connected by the MIDI cable.
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