Friday, April 27, 2018

EXES Cold Clocks & Biases as of 4/26/18

This post is intended to serve as a digital record of the voltage measurements Bob took yesterday on the boards that contain the clocks and biases (EBox plate removed to access) with the Fluke.


Board 1 or Left Board

DC 1
-9.96 V
DC 2
-2.374 V
DC 3
-2.310 V
DC 4
-2.308 V
DC 5
-2.304 V
DC 6
-2.287 V
DC 7
+0.001 V
DC 8
-2.030 V
DC 9
-6.488 V
DC 10
-2.012 V
DC 11
-2.552 V
DC 12
-4.517 V

Board 2 or Right Board
DC 13
-5.189 V

DC 14
-0.303 V

DC 15
-2.024 V

DC 16
-3.276 V

DC 17
-2.279 V

DC 18
-2.011 V

DC 19
-0.001 V

DC 20
-1.387 V

DC 21
-5.802 V

DC 22
+0.006 V

DC 23
+0.023 V

DC 24
+1.003 V
V_pullup

Board 1 or Left Board

Upper
Lower
CLK 1
-0.817 V
-1.782 V
CLK 2
-3.216 V
-0.824 V
CLK 3
-3.200 V
-0.778 V
CLK 4
-3.996 V
-3.983 V
CLK 5
-4.008 V
-4.039 V
CLK 6
-0.794 V
-0.772 V
CLK 7
-4.426 V
-2.053 V
CLK 8
-1.057 V
-6.015 V

Board 2 or Right Board
CLK 9
-5.909 V
-5.5953 V
CLK 10
-1.562 V
-3.192 V
CLK 11
-3.338 V
-1.793 V
CLK 12
-0.185 V
-0.061 V
CLK 13
-3.175 V
-0.801 V
CLK 14
-3.220 V
-0.794 V
CLK 15
-0.126 V
-3.167 V
CLK 16
-5.976 V
-5.988 V

1 comment:

MJR said...

For comparison, I'm adding a PDF from 2018_09 that lists EBox clock/bias number, pin connection, Function, and voltage. Believe these were written by Kevin Hanna during troubleshooting of EXES detector issue (that ended up being dirty card connections).

The new post with the PDF will be in Apr 2021.