Yamaha MX61, Руководство по обслуживанию

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Test
LCD display Test description, judging conditions, etc.
No.
022 022: Foot Control Chk Checks the foot controller.
Before executing the test, connect a foot controller (FC7) to the [FOOT CONTROLLER] terminal.
Press the pedal down up to maximum, and the C3 note is output.
Then, pull the pedal up to minimum, and the G3 note is output.
After executing the test, confirm that “OK” is displayed on the LCD.
(“FC Down:yy”, “FC Up:yy”) / yy = Current value
(OK: “OK”)
023 023: Sustain Chk Checks the sustain pedal.
Start the test without connecting any foot pedal to the FOOT SWITCH [SUSTAIN] terminal.
After starting the test, connect a foot pedal (FC3) to the FOOT SWITCH [SUSTAIN] terminal.
Press the pedal, and the C3 note is output.
Then, release the pedal, and the G3 note is output.
After executing the test, confirm that “OK” is displayed on the LCD.
(“FS Down:yy”, “FS Up:yy”) / yy = Current value
(OK: “OK”)
024 024: MIDI Chk Checks the MIDI terminals.
Before starting the test, connect the MIDI [IN] and [OUT] terminals using a MIDI cable.
When executing the test, confirm the C4 note is output.
After executing the test, confirm that “OK” is displayed on the LCD.
(OK: “OK” / NG: “NG”)
Notes: In case of inspecting by the MIDI operation,
the test for MIDI [IN] and [OUT] terminals is unnecessary.
025 025: USB Connect Chk Checks the USB connection.
Start the test without connecting any cable to the USB [TO HOST] and [TO DEVICE] terminals.
When executing the test, “Connect Device - Host” is displayed on the LCD.
To execute the loop check, connect the USB [TO HOST] and [TO DEVICE] terminals using a USB cable.
After executing the test, confirm that “OK” is displayed on the LCD.
When the result is “OK”, “Connect USB Storage” is displayed.
Then, connect a USB storage device to the USB [TO DEVICE] terminal.
Confirm that “OK” is displayed on the LCD.
026 026: USB FunctionChk Checks the USB communication between the USB [TO HOST] terminal and the PC.
Before starting the test, connect the USB [TO HOST] terminal and the PC using a USB cable.
Since this test item is for Then, start up the test tool “AsioLoopBack.exe” on the PC.
factory inspection, isn’t required First, the CPU tries the communication test with the USB controller IC on the PCB.
to be executed when servicing. At that time, confirm “MIDI:OK” is displayed on the LCD and the communication test is passed.
(OK: “MIDI:OK Audio Out” / NG: “MIDI:NG(Serial)”, “MIDI:NG(GPIO FULL-CN)”,
“MIDI:NG(GPIO HIDMIDI-SUS)”)
Then, the C3 note is output to the PC with the audio channel 1 on USB.
The signal is loop backed from the PC, and output from the OUTPUT [L/MONO] and [R] terminals.
Confirm the C3 note is output with the audio channel 1 at that time.
Press the [INC] switch, and the G3 note is output to the PC with the audio channel 2.
Confirm the G3 note is output with the audio channel 2 at that time.
027 027: USB Storage Chk Checks if the USB device is recognized.
Start the test without connecting any cable to the USB [TO HOST] and [TO DEVICE] terminals.
Before connction, “Connect USB Storage” is displayed on the LCD.
After starting the test, connect a USB storage device to the USB [TO DEVICE] terminal.
(Device Recognition Test)
After executing the test, confirm that “OK” is displayed on the LCD.
(OK: “OK” / NG: “NG”)
028 028: Keyboard TypeChk Checks if the keyboard type is correct.
The Keyboard type is recognized.
Confirm the correct type is displayed as follows.
(OK: “OK 16N” / NG: “NG”)
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MX61/MX49