Hologic DISCOVERY A, Technical Manual

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Discovery QDR Series Technical Manual
6-2
The following suggestions apply to a Discovery system exhibiting a power problem:
Also...
6.5 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 Discovery motion problems. Therefore, it is
good troubleshooting practice to check the error log (C:\ERRLOG.DAT file) for
occurrences of motion related problems. The following suggestions apply to a Discovery
system that exhibits a motion problem.
Start by identifying the bad axis (if it is not obvious). Ask the operator for symptoms and
check the error log. See Figure 6-1 for possible motion directions.
If... Check... Refer to...
System "dead” Main breaker left pedestal
Emergency Stop or Instrument On/Off
switch on Control Panel Check Power Line Voltage
heading, Section 3
Check fuses
Main power suspect Check AC input voltage
Power cable to the Torroid Assembly Power Module heading,
Section 2
Suspected Power Module
problem Check AC Voltage at Scanner DIN Rail Power Module FRU s
heading, Section 5
Suspected DC power supply
problem Check LED’s on Distribution Board for
all DC voltages (lit if present) Check fuses
24V LED not lit All tape switches and connectors (tape sw
reads 120W when open
Emergency Stop Switch and associated
circuitry
Computer is off
Hologic software running
(check error log) Check fuses
Distribution board,
Figure 5-1
System does not start up System properly configured (see “Before
Starting” on page 6-1
Before starting, make sure the software
configuration is compatible with the
scanner.
Emergency Stop switch in “On” (Out)
position
Console does not power up Main circuit breaker, power strip
Problem... Possible cause... Corrective action...
Laser does not
turn on Safety feature if system thinks C-arm
is at head of table Restart in Service mode
From Service Utilities, run SQDRIVER
At CARM$$$$> prompt, type
LASER_SAFTY 0 <Enter>
Exit from SQDRIVER
Reboot the computer