Manual - 8500A Series Peak Power Meter - Giga-tronics

Theory of Operation
A6/A7 Test Points
The test points in Table 4-5 can be checked for the correct signals on the A4 CPU board:
Table 4-5. A6/A7 Analog Test Points
Test Point
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
Description
Reference Common
+10 V Reference
Output of the analog DAC
Analog output as seen on the rear panel connection
Output of the 2nd sample and hold
+5 V
5 V Common
-5 V
+15 V
-15 V
15 V Common
Can be used as scope trigger
0 Vdc adjust readout point
Manual No. 20790, Rev C, November 1998 4-23
Superceded by Revision D, March 2009