6-42
BOACvalues for CH 1 and CH 2 POS need an acquisition after the COLD START to be rewritten. Turn off EXT DIAG menu and press
acquire; then go to FORCE DAC.
bLimits at a DAC count of approximately 2000.
DAC DAC Ampl COLD START Voltage Range
Effect of
Output
Output DAC VALUES
Increasing Value
0
4095
CH1Bai U641-7 2048/0 V
-1.37 V 1.36 V Trace shifts down
CH2Bai U641-1
CH1Gain U641-8 668/-4.37 V -6.48 V
1.58 V Gain decreases
CH2Gain
U641-14
1POS
U630-1
2048/5
v»
-4.35 V -5.66 V Trace moves up
2POS U630-14
P011
U631-1
2048/0 V
-1.37 V 1.36 V Offset goes up
P013
U681-7 Offset goes down
P021
U640-7 Offset goes up
P023
U640-8 Offset goes down
CT11
U840-1
2048/0 V
4.06 V 10.89 V 3 side goes up
CT21
U840-8 1 side goes down
CM11 U841-1
1500/-0.37 V -1.35 V 1.35 V
CM13
U841-7
CM21
U841-8
CM23
U841-14
0011
U840-7 2200/10.29 V 5.88 V 14.07 V Gain increases
0013
U840-14
0021
U661-14
0023 U631-14
JIT1 U661-1 3841/-2.54 V -7.69 V
-2.23 V
Fast Ramp Slope
JIT2
U661-7 increases for more
counts per sec
ALVL U640-1 2176/0.09 V
-1.37 V -1.36 V
Triggers at lower
BLVL
U640-14 point
GRAT
U520-10
4095/14.66 V
0.83 Vb
14.66 V Oecrease Grat
U820-1 4095/ -3.34 V
4.20 V -3.35 V
intensity
INTN U820-8
3160/0.78 V -1.37 V 1.36 V Increases intensity
NORM
U820-7 1640/- 0.28 V
ROOI
U820-14 2050/0 V
CURS (CAL)
U610-3 2048/0 V -1.37 V
1.36 V
U610-4
-OV -OV
Current output into
U610-6
-OV
-OV 75 n loads
U610-13
-OV
-OV
U610-15 -OV -OV
Force DAC Ranges
Table 6-6 (cont)
Maintenance-2430 Service
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