4-15
Servicing Frame Power Supplies
Replacement of Multi-Output Power Supply Assembly
NOTE:
In order to replace a Pioneer Multi-Output supply with a Todd Multi-Output
supply, you will need to have the installation kit that is part of Field Modification Note
FM2025.
To replace a Pioneer Multi-Output assembly with a Todd Multi-Output assembly,
proceed as follows:
1.
On the front panel of the main Signal Processor Frame Power Supply, turn off
the main power switch. The indicator LEDs on the front panel will go out.
If there is a Redundant Signal Processor Frame Power Supply, also turn off its
main power switch.
2.
Inside the switcher Control Panel, turn off the main Control Panel Power
Supply switch and (if present) the redundant Control Panel Power Supply
switch.
3.
At the rear of the equipment rack, disconnect AC power from the Signal
Processor Frame Power Supply by unplugging the cable from the AC power
source.
If there is a redundant Signal Processor Frame Power Supply, also disconnect
it from the AC power source.
WARNING
If a redundant power supply is installed, power to both supplies must be
disconnected, due to the interconnecting wiring.
Removal of Pioneer Multi-Output Supply
1.
Remove the left rear cover of the power supply frame, as viewed from the rear,
to expose the wiring connections at the rear of the Multi-Output power unit.
See
If this is the upper power supply in a redundant power system, also
remove the left rear cover of the lower power supply.
2.
Disconnect the two connectors that plug into the jacks at the top of the left rear
compartment. (Hint: To release the connectors, squeeze the near and far side
tabs on the large connector, and the left and right side tabs on the four-wire
connector.
If this is the upper power supply in a redundant power system, also disconnect
the corresponding two plugs in the lower power supply frame.
3.
Unplug the small multiwire connector that connects to the top of the circuit
board containing the power supply indicator LEDs.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...