Sedecal SHF-310 - Page 356

HF Series Generators
Troubleshooting
TR-1005R4
116
5.10 AEC CONTROL BOARD
5.10.1 AEC CONTROL BOARD (A3012--01/02/05)
JUMPERS / SWITCHES
JUMPER / SWITCH DESCRIPTION
JP1 A FOR TV CAMERA
B FOR PHOTOMULTIPLIER
C FOURTH ION CHAMBER & ATS--DIG
A
3
0
1
2
0
5
:
J
P
1
C
J
P
2
A
A
N
D
J
P
4
B
F
O
R
F
O
U
R
T
H
I
O
N
C
H
A
M
B
E
R
&
A
T
S
D
I
G
JP2 A FOR TV CAMERA
B FOR PHOTOMULTIPLIER
A
3012-05: JP1-C, JP2-
A
A
ND JP4-B FOR FOURTH ION CH
A
MBER &
A
TS--DIG
A3012-02: JP1-A, JP2-A AND JP4-A FOR ABC WITH TV CAMERA
A3012-01: JP1-B, JP2-B AND JP4-A FOR ABC WITH PHOTOMULTIPLIER
JP4 A FOR PHOTOMULTIPLIER -- AEC
B FOR ION CHAMBER -- AEC & ATS--DIG
,
JP3 A FOR HIGH SENSITIVITY
B FOR LOW SENSITIVITY
JP3-A FOR AEC WHEN USING ION CHAMBER WITH HIGH SENSITIVITY
JP3-B FOR AEC WHEN USING ION CHAMBER WITH LOW SENSITIVITY
NOTE: HIGH SENSITIVITY IS > 2 V / mR (> 0.223 V / μGy) (a.e. Vacutec Ion Chamber)
LOW SENSITIVITY IS < 2 V / mR (< 0.223 V / μGy) (refer to Ion Chamber documentation)
POTENTIOMETERS
POTENTIOMETER RATING DESCRIPTION
R10 10K, 1/2w LOW SENSIBILITY ION CHAMBER ADJUSTMENT
R11 10K, 1/2w KVP DOWN WINDOW REFERENCE FOR ABC
R12 10K, 1/2w KVP UP WINDOW REFERENCE FOR ABC