4-23
Servicing Frame Power Supplies
NOTE:
Refer to
when performing the following step.
12. If this is the upper +5 volt supply in a redundant system:
a.
Place the wiring from the signal processor frame over the power supply
studs (red to the left; black to the right), install the lockwashers and second
set of studs, and torque these studs to 80 inch pounds. See WARNING
above.
a.
Place the wiring to the lower supply over the second set of studs, install
the lockwashers and nuts, and torque the nuts to 80 inch pounds.
13. If this is a redundant power system:
a.
You must replace the +5 Volt power assembly in the second Power Supply
frame (
if it is not a Todd supply
) by repeating the procedures listed
above.
b. Before applying power you must set the BYPASS/PROTECT jumper in
the rack fan assembly as described in the Installation information in
Section 2 of this manual.
c.
When you have completed the installation (of both +5 Volt supplies, if
required), reconnect the power source and apply power to both units.
d. Before you install the rear plates on the Power Supply frames, you must
check the output voltages for load-sharing, as described in the Installation
information in Section 2 of this manual.
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 ...