Technical information

Technician’s Handbook

Interpreting the Main Control Card

Power-Up Error Codes

The error codes listed in Table 3 may appear on the Main Control Card

numeric display during startup.

Note: 1. A normal running system may show other codes (card diagnostics or er-

rors). However, during start-up, only the codes in this table are possible.

Any other code shown during start-up indicates a faulty Main Control

Card.

2. Codes possible AFTER start-up include card diagnostics codes (last

card location tested - top number indicates bay number, bottom number

indicates card slot number). Maintenance logs give results of test, pass

or fail with cause.

Table 3: Main Control Card Error Code Summary

Error

Code

Likely Cause(s)

(blank)

• Faulty power system.

• Faulty Main Control Card.

• MOSS password was not purchased, a purchased option is

not enabled, an enabled option is not purchased, the system

password does not match, or the system id does not match.

• Faulty System ID module.

• Faulty Flash memory or Main Control Card - This code shows

for approximately 15 seconds during a proper power-up

sequence. If the code remains, then a problem exists.

• Nothing - indicates successful software download. This

display may be immediately changed to display post-boot-up

codes (see note 1).