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Sep. 2012
4. LCD Screen
This verifies the display of the LCD screen.
fig.screen004.eps
1.
Press INC to display each screen in succession.
2.
Verify that each screen is free of dot drop-out, uneven color, grime,
soiling, and scratching.
3.
Turn the encoder clockwise and counterclockwise, and verify that the
contrast changes.
fig.screen005.eps
4.
Press INC several more times, and verify that the screen luminance
(brightness) changes.
5.
Press CURSOR
to advance to the next test item.
5. SW
This verifies the operation of switches that have no LEDs.
fig.screen006.eps
1.
Working in sequence, press the buttons indicated on-screen.
* The button on the left side of the screen indicates the VOLUME control
PREVIEW button.
When you have finished pressing all buttons, execution automatically
advances to the next test item.
6. SW/LED
This verifies the operation of LED-equipped switches.
fig.screen007.eps
1.
Working in sequence, press the buttons indicated on-screen, and verify
that the LED for each goes dark.
* Pressing PART
makes the MIDI LED (green) go dark, and pressing PART
makes the USB LED (yellow) go dark.
When you have finished pressing all buttons, execution automatically
advances to the next test item.
7. ENCODER
This verifies the operation of the encoder.
fig.screen008.eps
1.
Turn the encoder counterclockwise 2 turns, and verify that 0 is displayed.
2.
In the same way, turn the control clockwise 2 turns.
The value 48 is displayed, and execution automatically advances to the
next test item.
8. D/A NOISE
This measures residual noise.
fig.screen009.eps
1.
Adjust VOLUME to MAX.
2.
Connect the noise meter to OUTPUT A L/MONO and R (TRS), and verify
that the values shown below are obtained.
L: -86 dBm or lower (DIN audio or JIS A)
R: -86 dBm or lower (DIN audio or JIS A)
3.
Connect the noise meter to OUTPUT B L and R (TRS), and verify that the
values shown below are obtained.
L: -86 dBm or lower (DIN audio or JIS A)
R: -86 dBm or lower (DIN audio or JIS A)
Press CURSOR
to advance to the next test item.
9. SHOCK TEST
1.
Connect headphones, press the PREVIEW (PUSH) button, and verify the
sound.
2.
Lift the front of the unit 5 centimeters, then let it fall. (Do this 3 times.)
3.
Verify that when impact is applied, no sound drop-out or momentary
power interruption (restart) occurs.
10. FACTORY RESET & ERP
This verifies the results of the wave ROM check, carries out a factory
reset, and verifies ERP operation.
fig.screen010.eps
1.
Verify that OK is displayed for all items from WaveROM 1 through 3.
If Busy is displayed, wait until OK is displayed. (This can take up to
around 2 minutes.)
* The check of the entire wave ROM region starts after 2. DEVICE 1 (p. 17) has
been executed. If DEVICE 2 has been skipped, the message Busy remains
displayed without change.
2.
Press PART VIEW, and verify that the message Factory Reset : OK is
displayed.
* The message Busy is displayed for several seconds until OK appears.
INTEGRA-7
19
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