Receiver Mainframe/System Faults
18
If an abnormal bootstrap sequence occurs, then the
problem lies in the receiver mainframe. To troubleshoot
the mainframe, do the following:
1. Remove power to the receiver mainframe and
remove the 40 MHz CPC Card. Re-apply power to
the receiver mainframe and observe the following
LED pattern on the Utility CPU during the
bootstrap routine:
2. If the sequence in the table occurs, following is the
probable cause of the problem.
a. Refer to the
Philips Telemetry System
Compatibility Matrix Service Note
to verify the
compatibility between the Utility CPU and the
CPC PCB.
b. The 40 MHz CPC Card was in the wrong slot.
Check the correct card placement and insert
the CPC Card into the correct slot. The CPC
belongs in the 4th slot from the left in the rear
of the mainframe. See
Figure 3 on page 16.
c. The 40 MHz CPC Card is faulty. Replace it.
Table 3. Utility CPU LED Pattern without CPC Board
Installed
LED Step 1 Step 2 Step 3
4 Green ON FAST BLINK FAST BLINK
5 Green ON OFF SLOW BLINK
6 Red ON OFF OFF
quickref.fm Page 18 Wednesday, June 5, 2002 3:08 PM
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