QDR
4500 Technical Manual
6-2
The following suggestions apply to a QDR 4500 system exhibiting a power problem:
If... Check... Refer to...
System "dead” Main breaker
Power switches
Check Power Line
Voltage
heading,
Section 3
Main power suspect Circuit breakers on power module
Power cables to the power module
Power Module
heading,
Section 2
Suspected Power Module
problem
Power Module FRU s
heading, Section 5
Suspected DC power supply
problem
LEDs for all DC voltages (lit if present)
28V LED not lit
All tape switches and connectors (tape
sw. reads 120
•
when open)
Emergency stop switch and associated
circuitry
Computer is on
Hologic software running
(check error log)
Distribution board,
Figure 5-1
System does not start up
System properly configured (see
BEFORE STARTING
Before starting, make sure the
software configuration is compatible
with the scanner.
Software Configuration above)
Emergency stop switch in “Off” (Up)
position
X-ray enable key switch locked in the
horizontal position
Power console does not
power up
Incoming A/C line voltage
Main circuit breaker
Figure 5-14
Also...
Problem... Possible cause... Corrective action...
Laser does
not turn on
Safety feature if system thinks
C-arm is at head of table
1. Exit to DOS
2. Run SQDRIVER
3. At CARM$$$$> prompt, type
LASER_SAFTY 0 <Enter>
4. Exit from SQDRIVER
5. Reboot the computer
MOTION PROBLEMS
Motion problems are failures related to movement of the table and/or C-arm. In most (but not all)
cases, an error message accompanies QDR 4500 motion problems. Therefore, it is good
troubleshooting practice to check the error log (C:\ERRLOG.DAT file) for occurrences of
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