Receiver Mainframe/System Faults
16
1. Check the overall operation of the receiver
mainframe by re-booting it and observing the LEDs
on the 40 MHz CPC card and the Utility CPU board.
To re-boot the mainframe, push the power button
to remove power and then push it again to restore
power. See
Figure 3
for the Receiver Mainframe
Board location.
Figure 3 Receiver Mainframe Board Location
Diagram
The LEDs should behave as follows:
Note
The 3 upper green LEDs on the Utility CPU are for the
power supply and should remain Green whenever power
is applied to the receiver mainframe.
Table 1. 40 MHz CPC Card
LED
Step 1
Step 2
(Normal Operation)
1 Red
ON
OFF
2 Green
ON
Slow Blink
3 Green
ON
Slow Blink
Receiver Mainframe Board Location Diagram
R1-R8: Receiver Slots
D1: Rack Interface PCB
D2: Utility CPU PCB
D3: SDN Interface PCB
D4: Analog Output PCB
(optional)
D5: CPC PCB
D6: Unused
D7: Unused
D8: Power Supply PCB
quickref.fm Page 16 Wednesday, June 5, 2002 3:08 PM
