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No.
Key
Item
21
G#4 Damper Pedal check
22
A4
USB check
23
A#4 Master ROM check 2
24
B4
RAM check 2
25
C5
Wave ROM check 2
26
C#5 Effect RAM check 2
27
D5
Factory Set
28
C7
Test Mode Exit
Table 2 Switch test order
Order
Switch name
1
DEMO/SONG
2
PIANO/VOICE
3
METRONOME
4
+/R
5
–/L
6
REC
7
PLAY
Inspections of the others
1.
MASTER VOLUME
Usually, it judges by feeling inspection, and when there is a doubt, it judges in measured value.
The amount of change should be the following value.
Test program item:
Maximum attenuation: Not less than 70 dB
2.
NOISE
When nothing is pronounced, L and R ch should become below the following value.
PHONES L, R: less than -90 dBu
When the damper pedal is turned on, the sine wave of C3 sounds (for 1 second).
When it is released, the sine wave of C4 sounds (for 1 second).
This means the test result is OK.
Start the test with the [USB TO HOST] terminal connected to a PC with a USB cable.
* Use a PC with the USB-MIDI driver installed and Thru setting completed.
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
To check the Master ROM connected to the CPU bus (Full address).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
To check the RAM connected to the CPU bus (Full address).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
To check the Wave ROM connected to the CPU bus (Full address).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
* It takes about 30 seconds before checking is completed.
To check the Effect RAM connected to the CPU bus (Full address).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
* It takes about 8 seconds before checking is completed.
Initialize all the backup areas so as to obtain the factory outgoing setting state. (RAM
and Flash)
* Note that all the data will be erased.
For the OK result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (for 1 second).
* In this stage, the fl ag for initialization is raised only and initialization will be executed
when the power is turned on next time. After executing this factory setting, be sure
to execute Test No. 28 "Test Mode Exit". Initialization of the memory is actually
executed when the program is restarted (RE BOOT). Once it is started, do not turn
off the power until LED flashing comes to an end.
Close the test program, system-reset the voice, and start in normal mode.
LED to light up
Pitch
C2
C#2
D2
+/R (Green)
D#2
–/L (Green)
E2
REC (Red)
F2
PLAY (Green)
F#2
Output Level R Check/Output Level L Check
YDP-162B/YDP-162C/YDP-162R/YDP-162PE
Test descriptions, judging conditions, etc.
37
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