Yamaha CS1D, Owner'S Manual

Page: 29 / 617

Turning on the power and verifying the connections
21
Checking the digital input/output unit (Mirror mode)
If the output unit and the engine are correctly connected in Mirror mode and the PORT B SELECTOR of the DIO8 is in
the 5-8 position, the I/O UNIT ID indicator will show the ID number of that unit (i.e., the number of the OUTPUT con-
nector on the engine to which the INPUT A connector of the DIO8 is connected), and a dot ( . ) will be displayed at each
side of the number.
If the PORT B SELECTOR switch of the DIO8 or
the word clock synchronization are not correct, the
I/O UNIT ID indicator of the DIO8 will show one
of the following error displays.
•
UL (unlocked) ....The word clock of the DIO8 is
not synchronized with the
PM1D system. Check the con-
nections of the DIO8’s WORD
CLOCK IN connector, or the
word clock setting of the CS1D
(
→
p.28).
•
ID number and A (or b) displayed alternately
Since control signals from the CS1D forcibly
switched the valid engine to A (or B), the setting of
the PORT B SELECTOR switch of the DIO8 does
not match the actual operation. This display does
not signify an actual error. However as necessary,
check the setting of the PORT B SELECTOR
switch or the setting of the CS1D.
I/O UNIT ID
PORT B SELECTOR
5-8
1-4
POWER
ON/ OFF
I/O UNIT ID
ID number of the DIO8
(when the INPUT A connector of the DIO8
is connected to the OUTPUT 3 connector
of the engine)