Chapter 5 Service Instructions
Revision W HF Series X-ray Generators - Service Manual
5-44 Quantum Medical Imaging, LLC
Table
Bucky
The table bucky has been
selected but did not return the
ready signal to start exposure.
(This may take up to five seconds
after exposure is requested.)
1. Verify the following did not
occur:
The "TABLE" receptor key on the
OCP was selected on a system not
equipped with a table receptor.
2. Check the bucky cable connec-
tions at both ends (i.e., Interface
Board A9 (AY40-023T or AY40-
034T) terminal block TB3 and the
table bucky). Refer to bucky inter-
connection diagrams contained in
Chapter 6, DIAGRAMS for proper
wire connections.
3. On Interface Board A9, verify 120
VAC bucky power fuse F11 (2A,
250V slow-blow) is not open.
4. On Interface Board A9, check if
switch SW1 is in correct position
("M" position if table is equipped
with Midwest bucky, non-"M" posi-
tion for all other type buckies).
5. Verify fuse in bucky is not open.
Recycle bucky power by turning
generator off, then on. If error still
occurs, replace bucky control
board.
6. On Logic Board A1 (AY40-006S),
check for an active low signal at
J4-4 during expose. If not present,
replace Logic Board (including
firmware). If present, check cable
connection between Interface
Board A9J6 and Logic Board
A1J4. If connection is good,
replace Interface Board.
Tube
Limits
Backup time was reached based
on current AEC technique factors
exceeding exposure tube limits.
1. Modify technique factor(s) (e.g.,
reduce kVp). Re-take exposure.
2. Verify ion chamber cable connec-
tions are correct and secure.
Table 5-1. Error Messages and Possible Cause(s)
Error
Message
Possible Cause(s)
Remedial Action
To Next Page
Loading...
Need help?
General
