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
Table 3. Utility CPU LED Pattern without CPC Board
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
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.
Receiver Mainframe/System Faults