4 INSTALLATION AND MAINTENANCE/INSPECTION
MUX-100 SERVICE MANUAL
4 - 10
1 2 3 4 5 6 7 8
SW2 - - - -
ON
- - -
SW3 - - - - - - -
ON
Fig. 4-11 Setting the DIP Switches on the NEXSC PCB (for adjustment mode)
ⅱ
Selecting the tube current 2-point adjustment mode
Press the head scan key in the APR to enter the tube current 2-point adjustment mode. (The LED on the
head scan key flickers.) Because the tube voltage is fixed to 80 kV, you do not have to set it. Set the tube
current to two points, 50 and 160 mA, perform exposure, then make sure that the measured value is located
inside the range shown at the confirmation point.
Fig. 4-12 Panel in the Tube Current 2-Point Adjustment Mode
Ⅲ
Confirmation of operation
ⅰ
Confirming the operation of the travel handle
Set to ON the key switch to turn on the power of the system. Push the travel handle, and make sure that
the system moves forward. In the same way, pull the travel handle, and make sure that the system moves
backward. At this time, make sure also that the moving speed changes in accordance with the
pushing/pulling force.
Next, press the arm lock release switch, and lift the tube unit. After that, manipulate the travel handle, and
make sure that the system moves at slower speed compared with the status in which the tube unit is
accommodated inside.
At last , make sure that the system stopped by bumper switch.
ⅱ
Confirming the operation of the fine movement switch
Press the arm lock release switch, and lift the tube unit. After that, press the fine movement switch, and
make sure that the system moves in the correct direction.
Further more, make sure that the system stops when one fine movement switch is pressed while the system
is moving by pressing of another fine movement switch.
At last , make sure that the system stopped by bumper switch.
NOTE
Manipulate the fine movement switch while the arm is lifted a little from the connection area by
pressing of the arm lock release switch. (While the arm is connected, the fine movement switches
are disabled.)
XCONT
NEXSC CPU
Flickers.
50/160 mA
Fixed to 80 kV
Change over the tube current
between 50 and 160 mA with
these + and - keys.
Flickers.