System Error Codes - HP 650C User Manual

SYSTEM ERROR CODES

System error codes are hexadecimal-based numbers generally caused by internal system er-
rors. See Table 8-2 for a list of system error codes and their respective descriptions and rec-
ommended corrective actions.
Error Code
010001 Window sensor circuitry not
operating correctly.
010011 Bail sensor indicates the bail
is up when it should be down.
010012 Bail sensor indicates the bail
is down when it should be up.
010013 Bail is falling down (missing
the detent).
010020 ROM test failure.
010021 DRAM test failure.
010022 Swath RAM test failure.
010023 EEROM test failure.
Table 8-2. System Error Codes
Problem Description Corrective Actions
Check window sensor switch.
Check that the sensor cable is
connected to the front panel PCA.
Disconnect the sensor cable connector
from the front panel PCA and read the
resistance between the pins. Values
should read as follows:
Pins
1–2
1 – 3
2 – 3
Replace defective wires or assembly.
Replace front panel-to-main PCA
cable. Replace front panel PCA.
Replace the main PCA.
Use the bail sensor test to help
troubleshoot.
Use the bail sensor test to help
troubleshoot. Check for a sticky sensor
flag.
Check for Mechanical problems.
Perform the Bail Calibration.
Replace EPROMs.
Replace main PCA.
Replace main PCA.
Replace main PCA.
Replace EEROM.
Replace main PCA.
Troubleshooting
Window
Up Down
W W
0 W W
W 0 W
8-7