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Section 2 — Installation
Primary and Redundant Power Supply Voltage Adjustments
If you ordered a redundant Frame Power Supply with the Model 4000, it was tested
and adjusted with the system before leaving the factory. In this case, it is not
necessary to perform the following procedure.
If a redundant Frame Power Supply is ordered after the Model 4000, the following
procedure should be performed to ensure that the Primary and Redundant
supplies are working properly together.
WARNING
Dangerous voltages are present inside the Signal Processor Frame Power
Supply. Do not perform any servicing of this equipment unless you are
qualified to do so. Remove all rings, wrist watches, etc., before working
inside the equipment.
1.
Remove the rear access panels of both power supplies if they have not already
been removed.
2.
With the Redundant Power Supply power off, turn on the Power switch on the
front of the Primary Power supply.
3.
Measure the supply output voltages (-5.2, +13, -13, and +48 Vdc) at the test
points inside the left rear compartment of the power supply (referenced to the
GND test point) and the +5Vdc supply between the power lugs in the right
rear compartment (see
supplies). Record your measurements on paper.
4.
Turn the primary power supply off, then turn the redundant supply on and
measure its voltages. Compare the values measured to those recorded earlier.
5.
With an insulated screwdriver-type adjustment tool, adjust the redundant
supply voltages to within 20mV of the recorded values. Adjustment locations
for Pioneer power supplies are shown in
Todd power supplies are shown in
.
6.
Turn off both power supplies and install the access panels on the rear of the
supplies.
7.
Turn on both supplies for redundant operation.
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 ...