[ 4 9 0]
SMMC shuttle motor drive.
[ 4 9 1]
SMMC shuttle frequency out of range.
[ 4 9 2]
SMIH imaging hardware failure.
[ 4 9 3]
SMMC or SMIH board (no shuttle interrupt). Check all SMIH
jumper positions.
[ 4 9 4]
No INT signal available to cause paper motion.
[ 5 2 9]
SMSM NVRAM (5517L in U29).
[ 5 3 0]
SMSM timer chip (8253 in U30).
[ 5 3 1]
SMSM interrupt controller (8259A in U31).
[ 5 4 7]
SMSM ROM (U47).
[ 5 4 8]
SMSM ROM (U48-U49).
[ 5 4 9]
SMSM ROM (U48-U49).
[ 7 0 0]
SMIM, SMSM failure (image processor).
[.8.8.8]
Used to test all the LED lights when power is turned ON. Lasts
only a few seconds.
[ i P ]
Indicates self-test in progress. Lasts for several seconds after
power on sequence.
[ i 9 P]
Intermodule gap return.
[ i 1 3]
SMIM image processor timer chip (8253 in U13).
[ i 1 4]
SMIM interrupt controller (8259A in U14).
[ i 2 1]
SMIM ROM (U19-U24, U38, U39) image processor. ROM
(display indicates chip number at fault).
[ i 2 5]
through
[ i 3 2]
SMIM NVRAM (5517L in U25-U32). Display indicates chip
number at fault).
[ 0 5 ]
through
[ 1 6 E]
When Data Processing font is selected available characters per
inch (CPI).selections using the key (5) CPI LPI.
A–4
LED DISPLAY LIST
