9600 Periodic Maintenance Procedure
00-880606-02
Page 25
1. On the Image Processing PCB, measure the following voltage:
GND To Adjust
Measurement
Tolerance
P3-5
P3-1
PS1 @ R14
+5 VDC
±0.1 VDC
MAINFRAME (ONLY PERFORM IF THE SRAM BATTERY IS REPLACED)
WARNING
Electrical circuits inside the equipment use voltages that are capable of causing
serious injury or death from electrical shock. Use appropriate precautions.
1. Open the Electronic Rack Cover to gain access to the Technique Processor PCB.
2. Measure the +5 VDC on the Technique Processor PCB. If the +5 voltage does not meet the
tolerance indicated then adjust R11 on PS1 until the correct tolerance is displayed on the DMM.
GND To
Measurement
Tolerance
C9 -
C9 +
+5.05 VDC
±
0.05 VDC
3. IMAGE QUALITY INSPECTIONS
WARNING
The following steps produce X-rays. Use appropriate precautions.
3.1 DOSE RATE
Entrance exposure is the amount of radiation available at the entrance point of patient anatomy. Entrance
exposure is measured 12" (or 30 cm) above the surface of the Image Intensifier in the center of the X-ray
beam. This measurement is used to represent the average thickness of patient anatomy.
5R and 10R Systems
FDA requirement 80-8035, Section 1020.32, part D2 states the maximum FLUORO entrance exposure is
either 5R/min or 10R/min depending on the manufacturing date. If a system was manufactured before
May 19, 1995, the maximum entrance exposure allowed is 5R/min. On or after May 19, 1995, the
maximum entrance exposure allowed is 10R/min. This impacts 9600s as indicated by the following
system serial numbers:
•
5R systems = S/N 69-0001 to 69-1160
•
10R systems = S/N 69-1161 and higher
Refer to the 9600 System Service Manual to perform the Entrance Exposure calibration. Be sure to refer
to the correct Entrance Exposure documentation (5R or 10R) depending upon the serial number of your
system.
