Yamaha CS1D Service Manual page 131

13. CS1D-CIO Test
This test checks the CIO board. It checks the following items.
Here it is assumed that the elements around the DSP on the MTCPU board and the MIO board are operating normally. If this can
not be assumed and an NG appears for these items, it is necessary to consider the possibility of abnormality in the MIO board, the
CIO board, and the MTCPU board.
The detailed screen output specifications are given on the following pages.
13-1. CS1D-CIO
* There are the following restrictions on the combination of ENGINE terminal (inspection reference terminal) and TO
CONSOLE terminal (inspected terminal).
ENGINE A1 or ENGINE A2 – TO CONSOLE 1
ENGINE B1 or ENGINE B2 – TO CONSOLE 2
13-1.CS1D-CIO (TO CONSOLE 1) TEST
This test checks the CIO (console 1 port).
13-1. CS1D-CIO (CONSOLE 1) OK
* SI/SO
* W.CLK
* ID
In
Out
* MSB/LSB
* 2CH/4CH
(CONSOLE 1)Test
This test checks the CIO (Console
1 port).
Check item
SI/SO
W.CLK
ID
• In
• Out
MSB/LSB
2CH/4CH
13-1. CS1D-CIO (CONSOLE 1)
OK
(SELECT ENGINE PORT = A1)
OK
SI/SO:
OK
W.CLK:
The MIO port used for the CIO check is selected
ID:
from the pull-down list.
2CH/4CH:
When 1 is selected: ENGINE A1 – TO CONSOLE 1
OK ENGINE B1 – TO CONSOLE 2
When 2 is selected: ENGINE A2 – TO CONSOLE 1
OK
ENGINE B2 – TO CONSOLE 2
Please select 68pin ports to check.
[ENGINE Port] 1
[TO CONSOLE Port] 1
OK
I n t h e M S B / L S B , 2 C H / 4 C H i t e m s , t h e
following pop-up menu will be displayed.
Set the switches on the ID conversion jig so
that the corresponding signal will become
low and click the OK button.
Change [MSB/LSB line] to low level.
OK
13-2. CS1D-CIO
(CONSOLE 2)Test
This test checks the CIO (Console
2 port).
Check item
SI/SO
W.CLK
ID
• In
• Out
MSB/LSB
2CH/4CH
NG sample
Please refer to page 111 for NG chart.
OK
OK
OK
OK
When changing to the next port, a pop-up box like
that below is displayed, so change the connections in
order according to the instructions and check.
Connect [TO CONSOLE 1] to [ENGINE A1]
OK
2
ID change jig DIP switch
setting display
CANCEL
CS1D
122