YDP-162B/YDP-162C/YDP-162R/YDP-162PE
37
No.
Key
Item
Test descriptions, judging conditions, etc.
21
G#4 Damper Pedal check
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.
22
A4
USB check
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).
23
A#4
Master ROM check 2
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).
24
B4
RAM check 2
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).
25
C5
Wave ROM check 2
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.
26
C#5
Effect RAM check 2
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.
27
D5
Factory Set
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.
28
C7
Test Mode Exit
Close the test program, system-reset the voice, and start in normal mode.
Table 2 Switch test order
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:
Output Level R Check/Output Level L Check
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
Order
Switch name
LED to light up
Pitch
1
DEMO/SONG
C2
2
PIANO/VOICE
C#2
3
METRONOME
D2
4
+/R
+/R (Green)
D#2
5
–/L
–/L (Green)
E2
6
REC
REC (Red)
F2
7
PLAY
PLAY (Green)
F#2
