Technical information

Technician’s Handbook
196
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 Likely Cause(s)
(blank)
• Faulty power system - refer to that procedure.
• Faulty Main Control Card.
0
• Faulty or loose flea clip W3 (if applicable)
• Faulty Main Control Card.
E
0
• Unseated DRAM Module or DX Module.
• Faulty DRAM or DX module (see Note).
EEE E
134or5
• Faulty Main Control Card.
E
2
• Unseated EPROM IC.
• Faulty EPROM IC - replace Main Control Card.
EEE E
678or9
• Unseated DRAM Module.
• Faulty DRAM Module - replace Main Control Card.
E
b.
• 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 position
(pointed upward with respect to the board).
• Faulty disk drive.
• Faulty Main Control Card.
E
C
• System will not boot, unable to change system
configuration.
Sequence: E
2389bb
• Faulty power system - refer to that procedure.
• No disk in drive, bad drive, bad disks.
(Sheet 1 of 2)