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Section 4 — Maintenance
Frame Power Supply Replacement
To replace the entire Frame power supply chassis proceed as follows:
1. Turn the main power switch on the front of the supply to the OFF
position. The five green DC output LEDs on the front panel will
extinguish. See Figure 4-1.
2. At the rear of the equipment rack, disconnect the AC power to the
supply by unplugging the cable from the AC source.
3. Remove the left and right rear covers of the power supply chassis to
expose the wiring connections, see Figure 4-2.
Frame Air Filter
I
O
STATUS
+5V
-5.2V
+13V
-13V
+48V
GRASS VALLEY GROUP
Power Supply
DC Output
Indicator LEDs
Main AC
Power Switch
Front Panel
Captive Screws
Mounting
Screws
Figure 4-1. Frame Power Supply (Front) AC Switch Location