CPI CMP 200 Series Service Manual page 203

3D
AEC Calibration
3D.2.4 AEC Board (5-Field Ion Chambers) (Cont)
Table 3D-6 shows the pin outs for the 15 pin D connectors on the AEC board in figure 3D-4. The 15 pin
connectors are compatible with some models of three-of-five-field AID ion chambers.
FUNCTION
Not used
Left field select (refer to note below)
Middle field select
Reset / start
Chamber output
Right field select (refer to note below)
-12 VDC output
+12 VDC output
Ground
Not used
Portrait
Not used
Inverted
Not used
Not used
NOTE:
Jumpers JW5 to JW8 swap the left and right fields on J1 and J2 as per the table below.
CHANNEL
1 Jumper JW7, JW8 pins 1-2 (N)
2 Jumper JW5, JW6 pins 1-2 (N)
NOTE: THE FIELD COMPENSATION VALUES (
SETUP MENU 2 MUST ALL BE SET TO
A.I.D.'s RECOMMENDED PROCEDURE.
Use and disclosure is subject to the restrictions on the title page of this CPI document.
Page 3D-10
Table 3D-6: Pin outs for 15 pin D connector (J1 and J2)
LEFT / RIGHT FIELDS AS PER
TABLE 3D-6
PIN NOTE
1
2 See note below.
3
4
5
6 See note below.
7
8
9
10
11
12
13
14
15
LEFT / RIGHT FIELDS SWAPPED RELATIVE
Jumper JW7, JW8 pins 2-3 (R)
Jumper JW5, JW6 pins 2-3 (R)
R FIELD COMP C FIELD COMP
,
0
. THE AEC FIELD BALANCE MUST BE DONE AS PER
Rev. A CMP 200
CPI Canada Inc.
TO TABLE 3D-6
L FIELD COMP
,
®
Service Manual
) IN AEC
Ch # 901476-05