4-20
Section 4 — Maintenance
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.
4.
Remove both the right and left rear covers of the power supply frame, as
viewed from the rear, to access the wiring connections. See
5.
Remove the nuts and lockwashers and disconnect the heavy red and black
cables from the studs. If this is the upper supply in a redundant system,
remove the extension studs and the second set of heavy cables from this
supply as well.
6.
Disconnect the small multi-wire connector from the top of the circuit board in
the left compartment of the power supply frame and feed it back through the
holes into the +5 Volt supply compartment.
(For Upper Supply in
Redundant
Power System
also Remove
Intermediate Studs
and Wires)
Disconnect
Connector from
Circuit Board
Remove Nuts
and Wires
from Studs
Disconnect
Blue and
Brown Wires
0347
0419
Black
Black
Red
Red
Feed Cable and
Connector through
Hole in Frame
Figure 4-8. Removal of P5 Volt Power Supply Assembly
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 ...