Mitel SX-200 EL Technician's Handbook page 193

SX-200 LIGHT/DIGITAL Main Control Card Power-Up Error Codes
Table 30 shows the Main Control Card numeric display error codes
which may appear during start-up. Also shown are the most likely
causes of the error condition.
Table 30: Main Control Card Power-Up Error Code Summary
Error Code
(blank)
0
E
0
E E E
1 3 4 or
E
2
E E E
6 7 8 or
E
b.
E
C
Sequence:
2 3 8 9 b
• Faulty power system - refer to that procedure.
• Faulty Main Control Card.
• Faulty or loose flea clip W3 (if applicable)
• Faulty Main Control Card.
• Unseated DRAM Module or DX Module.
• Faulty DRAM or DX module (see Note).
• Faulty Main Control Card.
E
5
• Unseated EPROM IC.
• Faulty EPROM IC - replace Main Control Card.
• Unseated DRAM Module.
E
9
• Faulty DRAM Module - replace Main Control
Card.
• Please note difference between "E" and "E.".
(See below in this table for E. codes.)
• Faulty disk drive connections.
• Faulty installation of diskette.
• Incorrect or damaged diskette - ensure that the
write protect sticker has been removed.
• Faulty diskette - replace.
• Incorrect setting of switch S3 on Main Control
Card - ensure that it is in the OFF, or OPEN po-
sition (pointed upward with respect to the board).
• Faulty disk drive.
• Faulty Main Control Card.
• System will not boot, unable to change system
configuration.
• Faulty power system - refer to that procedure.
E
b
• No disk in drive, bad drive, bad disks.
Likely Cause(s)
Installation
(Sheet 1 of 2)
183