Roland V-Synth Service Notes page 19

Mar.2003
Test item details
0: Test Mode Top page (Identifying the
version number)
fig.13-1_70
• Verify that Program ROM version.
• If the version is not appropriate, perform the update.
* For details on the update procedure, refer to "Updating the system."
• Press [ ] to proceed to the next text item.
1: Shock Test
fig.13-2_70
• A demo performance will play.
• Listen to the sound, and verify that there is no noise or other problem
with the sound.
• Perform the impact test.
• Lift the boay of keyboard side to a higher position(about 3cm) and drop
it.
• Checks thes sound (an unusual sound or a sound breaks off).
• The same thing is performed.(right-hand side and left-hand side).
• Connect headphones, and listen to the sound.
• Set the MASTER VOLUME to the minimum, and then the maximum
position, and verify that there is no crackling or other abnormality.
• The sound will stop when you press [DEC], and resume when you press
[DEC] again.
• Verify that the output is muted while you hold down [INC].
• Press [ ] to proceed to the next test item.
Problem
No sound
Not muted
21
Items to check
Perform detailed checks in 5. Sound
Test.
MAIN BOARD Q504,Q505,Q506
JACK BOARD Q2,Q3,Q5,Q6
2: Beep Test
fig.13-3_70
Verify that a beep is sounded from the internal speaker.
• Press [INC] once, and a high-pitched and a low-pitched beep will each
sound once.
• Verify that the beeps are sounded, and then press [
the next text.
Problem
Beep is not produced
3: Memory Test
fig.13-4_70
NOR FLASH, SDRAM, EEPROM, and ESP will be checked automatically.
• If all tests are OK, you will automatically proceed to the next test item.
Problem
NOR FLASH NG
SDRAM NG
EEPROM NG
ESP NG
] to proceed to
Items to check
SUB BOARD SP1,Q22,Q23,IC19
Items to check
MAIN BOARD IC21
MAIN BOARD IC3,7
MAIN BOARD IC11
MAIN BOARD IC22,IC24