Getting Started
ECO 422
1–11
Set the user switch (S14–8) to Normal (closed).
Power up all instruments.
Enable the front panel, using the Front Panel button.
Set the ECO 422 to “Switch on Fault” using front-panel buttons. (This is the
default at power on.)
If Primary is not already the source, press the Sync Source button to make
Primary the source. (This is the default at power on.)
Note that the output signal is the Primary input signal (black burst with setup)
and that none of the fault indicators light.
Press the Sync Source button to change to the Backup source.
Note that the signal changes to black burst without setup (Backup).
Check that there is no error on either signal.
Press the Sync Source button again, to switch back to the Primary input.
Disconnect the Primary signal source. (Remove the cable between the SPG 422
and the Primary 1 input of the ECO 422.)
Note the signal automatically switches to the Backup input and the Primary fault
indicator lights.
Reconnect the Primary signal source. (Replace the cable between the SPG 422
and the Primary 1 input of the ECO 422.)
Note that the Primary fault indicator remains on and the Sync Source remains the
Backup (the ECO 422 does not automatically switch back to Primary).
Press the Reset button.
Note that the Primary fault indicator turns off.
Press the Sync Source button to return to the Primary as the source.
Press the Auto Switching button to disable the “Switch on Fault” function.
Remove the Primary input signal. (Again, remove the cable between the
SPG 422 and the Primary 1 input of the ECO 422.)
Note that no switching occurs, but that the Primary fault indicator lights.
Press the Sync Source button to change to the Backup signal.
Press the Sync Source button again to try to change back to the Primary input. (It
should not let you change to a bad input.)
Loss of the Primary Signal
Summary of Contents for ECO 422
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Page 14: ...General Safety Summary viii ECO 422 ...
Page 16: ...Service Safety Summary x ECO 422 ...
Page 17: ...Getting Started ...
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Page 31: ...Operating Basics ...
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Page 41: ...Operating Basics ECO 422 2 9 Figure 2 6 Setup for Adjusting R265 the User Level for SX 7 ...
Page 43: ...Specifications ...
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Page 53: ...Theory of Operation ...
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Page 62: ...Theory of Operation 4 8 ECO 422 ...
Page 63: ...Performance Verification ...
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Page 84: ...Performance Verification 5 20 ECO 422 ...
Page 85: ...Adjustment Procedure ...
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Page 88: ...Adjustment Procedure 6 2 ECO 422 ...
Page 89: ...Maintenance ...
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Page 101: ...Options ...
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Page 104: ...Options 8 2 ECO 422 ...
Page 105: ...Replaceable Electrical Parts ...
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Page 140: ...Replaceable Electrical Parts 9 34 ECO 422 ...
Page 141: ...Diagrams Circuit Board Illustrations ...
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Page 147: ... ECO 422 Changeover Unit FRONT PANEL 1 ...
Page 148: ...ECO 422 ...
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Page 167: ...Replaceable Mechanical Parts ...
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Page 174: ...Replaceable Mechanical Parts 11 6 ECO 422 ...
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Page 176: ...ECO 422 A1 FIG 1 EXPLODED VIEW A2 A3 A4 ...
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