Note) Do not turn off the power during the internal inspection.
There is a possibility that the data may be incorrect in flash ROM.
Note) USB is NG in this test because there is no equipment to use at the factory.
If an error occurs, LED flashes of JoyStick
As follows, in the upper main display it is displayed as "Diag. Int. Error".
NG number of test items is displayed in the bottom line, when the power is turned off, please
do the repair.( Do not repair the USB. USB is always NG in this test)
Shown in the table below the number corresponding to the test item.
1:Work RAM
7:DSP#0 DataBus
11:Panel Left
17:USB
2:Flash Boot& Ld
8:DSP#0 Adr sBus
12:Panel Center
18:Midi LoopBack
3:Flash Main
9:DSP#1 DataBus
13:Panel Right
19:Midi TimeOut
4:Flash User
10:DSP#1 AdrsBus
14:Pnl-L ChkSum
20:CV
5:Flash PCM
15:Pnl-C ChkSum
6:Flash Wr/Rd
16:Pnl-R ChkSum
Simultaneously press the [VAL UE dial] and [PROGRAM], the test items will be displayed on
the top line of the LCD.
When you press the [PAGE-] or [PAGE +], you can select the display of items of inspection NG.
Simultaneously press the [VAL UE dial] and [PROGRAM],"Unplug USB Cable" is displayed.
Disconnect USB cable.
The following display appears, press the
[VAL UE dial], next inspection is star ted.
3-2. Confir m the voltage of CV-GATE output
The main display is displayed as shown in the picture
shown to the right.
Check the voltage with a digital multimeter.
The following table shows the standard voltage.
Lower limit
Reference value
Upper limit
Unit
8.990
9.000
9.010
V
After confirming, press the [VALUE dial], proceed to the next inspection.
Note) If the USB cable is not connected,
"Unplug USB Cable" is not displayed.
Instead, "VBUS not powered" is displayed.
In this case, it proceeds to the next test at the
same time press the [VAL UE dial] and
[PROGRAM ].
