Medrad ProVis Mark V, Service Manual

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Mark V ProVis Injection System
15 - 14
COMMUNICATIONS ABORTED: TIME-OUT
After three attempts to communicate, the Control Panel has not
received a response from the Main Unit for a transmitted keystroke.
Remove and reapply power, then attempt to operate the unit again.
If the condition persists:
1. Check the Control Panel cable for broken or intermittent
connections, focusing particular attention to shield and
ground connections, then check continuity of the cable and
connections.
2. If the condition persists, call MEDRAD Service.
**CPU RAM CHECKSUM ERROR
There is a fault in the RAM, located on the CPU Card. Remove and
reapply power, then attempt to operate the unit again. If the condition
persists, replace the CPU Card.
CPU: ROM CRC
The CPU Card ROM did not pass the Cyclic Redundancy Check.
Remove and reapply power, then attempt to operate the unit again.
Procedure:
1. If the ROMs have been replaced as part of a software
update procedure, they may have been installed in the
wrong slots.
2. If the condition persists, replace the CPU Card with one
containing a new set of ROMs.
CPU: SYS RAM
The CPU Card RAM failed a read/write exercise. Remove and reapply
power, then attempt to operate the unit again. If the condition persists,
replace the CPU Card.
CUMULATIVE PATIENT VOL XXX.X ML
The STATUS button was pressed; the message shows total Volume
injected since the accumulator was reset. This keeps track of the total
Volume injected into each patient.
DECIMAL NOT ALLOWED
Indicates that the variable must be entered as whole numbers (ex.
1,2,3), not in decimal form (1.2,1.3,1.4).
DUE TO R/F, MIN VOL = XXX.X ML
Selected Volume must be at least the quantity shown to deliver the
selected Flow Rate within the specified Rise/Fall time.