
Enhanced MMP40 (or MMP40) troubleshooting flowcharts C-11
Flowcharts (continued)
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
Flowcharts (continued)
Replace
Enhanced MMP40
EC
G100425/I
Proceeds
?
Proceeds
?
Proceeds
?
Does
PRM require
diagnostics?
YES
YES
YES
YES
NO
LED displays
".9"
LED displays ".8"
on non-prime node
LED displays
sequentially from
".0." to ".C."
H
J DD
DD
LED display
stuck
LED display
stuck at ".8"
NO
NO
NO
LED display
stuck at ".6"
Diagnostics
begin
Diagnostics
pass
PRM tries to load
non-prime node
Record LED
state and failure in-
formation from screen
(if available) on
repair tag
Return
failed card with
repair tag
Enhanced MMP40
EC resets
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