Yamaha CS1D Service Manual page 125

Overall flow
1 column at a time
1) Everything but 7x5 LED lit up
2) 7x5 LEDs
display in order from the left
( )
3) Faders
4) Everything but 7x5 LED off
5) Encoder outer periphery LEDs
(mix, pan, gain simultaneously)
Lit up one point at a time in the clockwise
direction.
Repeated for 12 channels
(2) All lit check mode
(3) Operation element check mode
• SEL switch ·················The LED toggles on/off each time this switch is pressed.
• Other switches ···········If the LED is off, it is lit up when this switch is pressed; if it is lit up, it goes out when this switch is
• Fader operation ·········Operate in pairs 1/2, 3/4 ··· with the partner side following
• Encoder operation·····When the knob is turned, the lighting state changes with the method corresponding to the function type.
* When carrying out diagnostics checks for single panels, connect INCPU board CN1 Pins 2 and 4 before starting the
diagnostics.
10-2. PNIS Test (Selected Input Module Inspection)
(1) Automatic lighting check mode
The check proceeds with the panels divided into left and right. In the left block, checking starts from the left top and proceeds
MIX4H at a time.
When the left side check is complete, the right side check starts.
Also, since the panel boards are divided into a top row and a bottom row, these can be checked independently.
When this mode is entered, both the top and bottom row panels are subjects of the check. The subject of the check can be
changed to the next stop in the sequence below by holding down any two switches for at least two seconds.
Both top and bottom row panel
Top row panels only ···
1 line at a time
See *1 Items common to all panels.
pressed, then released.
Top row panels only
1) Everything but 7x5 LED lit up
2) 7x5 LEDs display in order from the left
( )
3) 7-segment LEDs
4) FIX
VARI LOCAL lit up
Bottom row panels only
CS1D
All channels lit at the same time
in the order given on the left.
Both top and bottom row panels
116