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PSR-E373/YPT-370
No.
Test Program Item
064
Keyboard Check
065
Factory Reset
066
Test Exit
3.
Other Test Items (Check in normal mode)
No.
Test Program Item
-
Popping Noise Level
Check
-
Noise Level Check
28
Procedure for "Selection and execution of test items"
Checks whether each key works properly.
1)
Check that the LCD shows you the should-be-pressed key.
2)
Press the key specified on the LCD one by one.
The each sound between C3 and B4 assigned to the pressed key will be produced.
If no problem is found, "KB OK" is shown on the LCD.
* You can exit from this test by pressing the [DEMO] button.
* If the wrong key is pressed, nothing happens.
* If two or more keys are pressed simultaneously, "Over Two" is shown on the LCD.
* If the velocity of pressing the key is not suitable, either "Too Slow" or "Too Fast"
is shown on the LCD.
Reset all the backup region of the memories to the initial factory status.
1)
Do not turn off the power while "Fact --" is shown on the LCD.
After a while, "Fact End" is shown on the LCD to indicate that the initializing is
completed.
Lets you exit from the Test mode to the normal mode.
1)
Press the [START/STOP] button.
The Test Program mode will end, then the instrument will be restarted in normal
mode.
* Never turn off the power until the Main display appears. Doing so may cause a
malfunction.
Check that the popping noise level is proper when turning the power on and off.
1)
Connect an Oscilloscope to the [PHONES/OUTPUT] jack.
2)
Set the MASTER VOLUME to the maximum position.
3)
Press the [ ] (STANDBY/ON) switch to check the noise level indicated on the
Oscilloscope when turning the power of the instrument on and off.
No problem if the following conditions are satisfied.
[PHONES/OUTPUT] (Both L and R ch, 33 Ω load)
• L, R: 1.0 V peak to peak or less
Check that the noise level is proper.
1)
Connect the level meter (with JIS-C filter) to the [PHONES/OUTPUT] jack on the
rear panel. (Both L and R ch, 33 Ω load)
2)
Set the MASTER VOLUME to the maximum position.
3)
Check the output levels of L and R ch indicated on the Level meter.
No problem if the following conditions are satisfied.
[PHONES/OUTPUT] (33 Ω load)
• L, R: -75 dBu or less
* Do not plug anything into the [AUX IN] jack.
Procedure
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