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BENDIX/KING KLN 90B
Rev 5, April/2003 10521I05.TDC Page C-5
GPS Rec. error
Codes
Definition Suggested Action
RCVR Hardware
Error: 1000
RS-232 Channel 2
Failure: The second
RS-232 UART on the
receiver failed the
loop-back test. This
self-test can only be
enabled during test
mode on the receiv-
er, and should not be
seen in normal oper-
ation.
It could be one of the following, in the order of prob-
ability:
1. The receiver was put in test mode without looping
back the two serial ports.
2. Bad ASIC or Microprocessor on the Receiver
Board.
RCVR Hardware
Error: 2000
BBP Underflow: The
baseband process-
ing loop detected an
error in the 1 mS pro-
cessing loop.
It could be one of the following, in the order of prob-
ability:
1. The flex cable between the Receiver Board and
Main Board may have come out of the socket in the
GPS.
2. Bad TCXO, MMIC, or ASIC on the Receiver
Board.
RCVR Hardware
Error: 8000
BBP Overflow: The
baseband process-
ing loop detected an
error in the 1 mS pro-
cessing loop.
It could be one of the following, in the order of prob-
ability:
1. The flex cable between the Receiver Board and
Main Board may have come out of the socket in the
GPS.
2. Bad TCXO, MMIC, or ASIC on the Receiver
Board.