Ross Synergy 1, Maintenance Manual

Page: 196 / 240

11–10 • Synergy 1 Panel Maintenance Synergy 1 and Synergy 100 Maintenance Guide (v16-S1)
Replacing a Knob (Potentiometer)
This section provides instructions for replacing a knob (potentiometer) in the control panel’s Pattern
Control , Effects Control and Mattes areas. The procedure does not cover changing the rotary
encoders to the right of the display in the System Control area. Contact Ross Technical Support for
instructions if one of the rotary encoders has failed.
Testing a Knob (Potentiometer)
As a prerequisite, use the Pots Test Menu to verify that the target knob (potentiometer) has failed.
Use the following procedure to test the target knob (potentiometer):
1. Navigate to the Panel Diagnostics Menu 1-2 as follows:
• Press
HOME
(to display the Main Menu 1-2 ).
•
MORE
(to display the Main Menu 2-2 ).
•
Setup
(to display the Setup Menu ).
•
Panel Diagnostics
(to display the Panel Diagnostics Menu 1-2 ).
2. Press
Pots Test
to display the Pots Test Menu .
Pots Test Menu
3. Test the three knobs to the right of the display as follows:
• Press
Normal
.
• Turn each knob clockwise and counterclockwise.
The display indicates the rate at which you are turning the knob with a numeric display
and bar graph.
4. Test all other knobs as follows:
• Press Scaled .
• Turning the knob will display the absolute position of the knob both numerically
and graphically. The number (displayed in hexadecimal) should range from
0
(full
counter-clockwise) to
FFF
(full clockwise). The number should be stable and
jitter-free.
• If the number does not reach both limits, perform a calibration as described in the
section “
Switcher Calibration – Synergy 1 ” on page 9-2.
Note Contact Technical Support for details on each display value, or if a
problem with a potentiometer is suspected.