Operating Basics
ECO422D SD/HD Changeover Unit Instruction Manual
2- 11
User 1 R266
User 2 R265
A2 Main board
S1
S2
S3
S4
S5
S6
S8
S9
S10
S11
S14
S7
S13
Figure 2- 7: Selection switches and user level control locations
8.
Press the fault indicator Reset button. (This clears any errors.)
9.
Check the fault indicator for an error indication on either the Primary or
Backup channels. If there are no faults, then proceed to the next step.
Otherwise, try rotating the potentiometer in the other direction. (You are
trying to get the minimum signal level to pass through before reaching the
switching threshold.)
10.
Set the step attenuator to 3 dB of attenuation (or whatever attenuation is
required for your application).
11.
Check to see that the sync source has not changed to Backup and no faults
are on the Primary channel.
12.
Slowly adjust R265 until the ECO422D switches to the Backup sync source
and a fault occurs on the Primary channel. Press Reset to verify that the fault
is still preset. If the Primary fault indicator LED goes out, continue adjusting
the potentiometer. If the LED remains on, S1--7 through S11--7 are set for
your user-defined level.
Содержание ECO422D
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Страница 10: ...Table of Contents vi ECO422D SD HD Changeover Unit Instruction Manual...
Страница 14: ...Service Safety Summary x ECO422D SD HD Changeover Unit Instruction Manual...
Страница 16: ...Environmental Considerations xii ECO422D SD HD Changeover Unit Instruction Manual...
Страница 18: ...Preface xiv ECO422D SD HD Changeover Unit Instruction Manual...
Страница 19: ...Getting Started...
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Страница 36: ...Getting Started 1 16 ECO422D SD HD Changeover Unit Instruction Manual...
Страница 37: ...Operating Basics...
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Страница 51: ...Specifications...
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Страница 65: ...Theory of Operation...
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Страница 71: ...Performance Verification...
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Страница 95: ...Adjustment Procedure...
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Страница 98: ...Adjustment Procedure 6 2 ECO422D SD HD Changeover Unit Instruction Manual...
Страница 99: ...Maintenance...
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Страница 111: ...Replaceable Electrical Parts...
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Страница 114: ...Replaceable Electrical Parts 8 2 ECO422D SD HD Changeover Unit Instruction Manual...
Страница 115: ...Replaceable Mechanical Parts...
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Страница 122: ...Replaceable Mechanical Parts 9 6 ECO422D SD HD Changeover Unit Instruction Manual...
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Страница 125: ...Appendices...
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Страница 128: ...Appendix A Options A 2 ECO422D SD HD Changeover Unit Instruction Manual...